The tumors appear as one or (more commonly) multiple lumps 0.2 to 4 inches (0.5 to 10 centimeters) in diameter. Career guidance - "It's easier to transition from tech to tech in training". In addition, chemotherapy and radiation treatment may also be prescribed. Treatment for these nodules involves treatment of the underlying kidney or uterine tumor. They are likely to spread into surrounding tissue and lymph nodes. Occasionally dogs less than 1 year of age will develop fibrosarcoma. When multiple warts are present they may be sufficiently characteristic to make a working diagnosis. 196 Fibroma Stock Photos - Free & Royalty-Free Stock Photos from Dreamstime 196 Fibroma Stock Photos, Images & Pictures Most relevant Best selling Latest uploads Within Results People Pricing License Media Properties More Safe Search uterine vitiligo uterine fibroid magnifier woman joint pain dermatitis beauty clinic atheroma A veterinarian can perform a fine needle aspiration of cells or a biopsy (which removes a small amount of tissue from a tumor) for evaluation. The surface of this particular kind of tumor is . Larger dogs and Golden Retrievers seem to be affected more than other dogs, and male dogs more often than female dogs. This may be accomplished by using ultraviolet window screens, sunscreen, and keeping the animals indoors during hours of peak sunlight. Warts are caused by papillomaviruses. The larger the tumor, the more likely it is to be malignant. For these reasons, epidermal hamartomas are usually removed or treated. Single warts are more frequent in older animals, but they may not always be caused by viral infection. Diagnosis is by finding the tumors on the animal and confirming the type of tumor with a fine needle aspiration or a biopsy. They are common in dogs. Fibrosarcomas are fast-growing malignant tumors. Some are caused by prolonged sun exposure. All rights reserved. Lipomas are benign tumors of fat (adipose tissue) and are common in dogs. They most likely arise from a hair follicle. They appear more like an inflammatory reaction than a tumor and are generally treated with steroids. Perianal gland tumors are a type of tumor found near the anus in dogs. These tumors are sometimes dark in color. They often invade underlying muscles. A disorder called generalized nodular dermatofibrosis (dermatofibromas) is rarely seen in German Shepherds. Its dominant clinical signs are related to partial or complete extraluminal rectal obstruction. Already have a myVCA account? In dogs, these are the most frequently diagnosed carcinomas of the skin. These are elongated or circular, roughly 2 inches (5 centimeters) in length or diameter. Overview of Tumors of the Skin and Soft Tissues in Animals, Soft Tissue Giant Cell Tumors (Fibrous Histiocytomas), Tumors Originating Outside the Skin (Metastatic Tumors). The link you have selected will take you to a third-party website. They can invade surrounding tissues but rarely spread to other sites. Tumors are abnormal growths of cells. Apocrine adenomas and apocrine ductular adenomas are benign, and complete surgical removal cures the condition. Peripheral Odontogenic Fibroma (POF) is a very common oral tumor in dogs. They are classified as osteoclastic giant cell-rich bone tumors 1,2. A hamartoma is a nodular disorganized proliferation of various kinds of skin cells. In dogs, Treeing Walker Coonhounds, Norwegian Elkhounds, German Shepherds, and mixed-breed dogs are most at risk. A dog lipoma is a common soft tissue tumor that grows in fat cells. If attached, it is known as an infiltrative dog lipoma. Affected dogs have multiple collagenous nevi that are associated with kidney and uterine tumors. The fibroma, also referred to as irritation fibroma, is by far the most common of the oral fibrous tumorlike growths. When surgery is not performed for residual disease or for small recurrent tumors, injections of steroids and antihistamines into the tumor, which may be followed by freezing (cryotherapy), can be considered as an option. Surgical removal is effective treatment and reduces the chance of secondary infection and inflammation. They appear most commonly on the head and neck. o [alopecia OR hair loss ], , DVM, Pawspice & Animal Oncology Consultation Service. Use to remove results with certain terms Cysts may also form. In dogs, fibrosarcomas are invasive tumors that spread into surrounding tissues; only about 10% of these tumors spread to other parts of the body (metastasize). Fibromas appear as isolated, generally raised, often hairless lumps originating under the skin surface. Fibrosarcoma rarely grows primarily on jaw bones and leg bones. Comedone Syndrome (or, Schnauzer bumps) is common blackhead-like skin condition that affects the Schnauzer breed. Most of these tumors do not spread and surgical removal is the usual treatment. These tumors are found in male dogs 10 times more commonly than in females. Male dogs may be predisposed. Little is known about the effectiveness of chemotherapy in treatment of these tumors. . The skin bumps may come and go and do not typically cause itching. The disease eventually becomes progressive and results in death. Such cysts have a hard or solid core. Some of the most common preputial tumors include mast cell tumors, squamous cell carcinomas, papillomas, and fibromas. Hemangiomas are single to multiple, circular, often compressible, red to black lumps and can look like a blood blister. Although they are benign, they tend to develop ulcers and some grow quite large. Size: The normal range is about 0.5-1.5 centimeters (cm), with most lesions being 0.7-1.0 cm in diameter. Apocrine gland cysts are found in middle-aged or older dogs. A rare variant of this tumor, diffuse lipomatosis, has been identified in Dachshunds, in which virtually the entire skin is affected, resulting in prominent folds in the skin on the neck and trunk. Treatment is surgery to remove the tumor. Fibromas . Use for phrases Rupturing Schnauzer bumps only aggravates the condition and increases the chance of infection. These tumors look a lot like warts, but they are not caused by a virus like true warts (papillomas). These are discussed in the section on ear diseases Tumors of the Ear Canal in Dogs Tumors may develop from any of the structures lining or supporting the ear canal, including the outer layer of skin, the glands that produce earwax and oil, or any of the bones, connective tissues read more . They can look a little like a horn, which is why they are described as cornifying. They vary in size from less than 0.4 inches (1 centimeter) to more than 4 inches (10 centimeters) in diameter. Liposarcomas are lumpy and can be soft or firm. Malignant tumors can invade surrounding tissue and spread to distant organs. The tumors are generally small (less than 2 inches [5 centimeters]) in diameter and sometimes narrow. The tumor can be removed surgically but again appears due to metastasis. Benign forms appear as cysts in or under the skin. Mast cell tumors are tricky and difficult to deal with because they appear as a large central tumor but are in fact surrounded by a halo of smaller, microscopic nests of mast cells that infiltrate normal-looking skin. Malignant melanomas most commonly develop in older animals. They are bumps with a dark dot in the center. Freezing (cryosurgery) is usually not used for sarcomas because some tumor types are resistant to freezing. Set up your myVCA account today. NOFs account for the 'N' in the popular mnemonic for lucent bone lesions FEGNOMASHIC. Tumors may be benign or malignant (cancerous). Canine warty dyskeratomas are rare, benign tumors that grow near hair follicles or sweat glands. For diffuse or multiple forms, surgical removal or freezing have been less successful. The most common clinical signs associated with epulis in dog are: facial deformation discomfort difficulty eating decrease in activity weight loss halitosis swelling of jawbone excessive salivation oral bleeding lymph node enlargement dental disruption or loss no signs at all other than a small swelling The lips, mouth, and nail beds are the most common sites of development. Apocrine ductular adenomas are less common than apocrine adenomas. Treatment for the multiple form is more difficult, because the tumors are more likely to return following surgery. Fibromas occur in all breeds but are primarily a tumor of aged dogs. The disease may be inherited in Cocker Spaniels. The most common site for lipomas is the subcutaneous fat right under a dog . Surgery to remove these tumors is the treatment of choice. This tissue covers the. Some dogs find the tumors annoying and attempt to scratch, rub, or bite them off. Gordon Setters, Irish Wolfhounds, Brittany Spaniels, Golden Retrievers, and Doberman Pinschers are most likely to develop these tumors. As these tumors grow, they extend deeper into the skin and surrounding tissue. Avoidance of further sun exposure may reduce the development of new tumors; however, more tumors can appear over several years. We do not control or have responsibility for the content of any third-party site. It is primarily a disease of middle-aged and older dogs, most often found in Poodles and Cocker Spaniels. A definitive diagnosis is important because the nonepitheliotropic form in dogs is generally more serious than the epitheliotropic form. Treatment is dependent on size . This dog has a growth at the lower incisors - It was diagnosed as a benign tumor called a Peripheral Odontogenic Fibroma. Tumors are usually small lumps or bumps, but they also can occur as hairless, discolored patches, rashes, or nonhealing ulcers. In other cases, the epitheliomas may appear solely as cornified cysts. The outlook is guarded. Malignant histiocytosis is the other form of disease that affects Bernese Mountain dogs. Signs vary widely and may include flaky skin, red patches on the skin surface, raised and ulcerated areas, or lumps deep within the skin. It is also possible that insects may spread papillomaviruses. Tumors located near mucous membranes, feet, prepuce, or on the lower surface of the body are more likely to spread than mast cell tumors in other areas. You will see them on the gingiva (gums). Diagnosis is by finding the cysts on the dog. Two surgeons, a man and a woman, perform surgery to remove prostate adenoma and varicocele, fibroadenoma, operating theater Irritation fibromas are the most common oral reactive lesion. For a small solitary tumor confined to the skin (Stage I), the preferred treatment is complete surgical removal. The breeds most at risk are Doberman Pinschers, Labrador Retrievers, Miniature Schnauzers, and mixed-breed dogs. Diagnosis is through microscopic examination of samples of the tumor cells from fine needle aspiration or biopsy. Some tend to grow, and they may be indistinguishable from infiltrative lipomas or liposarcomas. Lymphoma most commonly arises from lymphoid tissues in the bone read more . Generally, it is difficult to identify the primary tumor based on the signs in the skin. The cause for these diseases is unknown. They can appear almost anywhere on the body. They can spread to underlying muscle and connective tissue. Affiliate of Mars Inc. 2023 | Copyright VCA Animal Hospitals all rights reserved. "Narrow" margins describe tumor cells close tobut not atthe edge, indicating that tumor cells could possibly be left behind at the surgical site. The head and legs are the most likely sites. It does look similar but I'm not sure if they're the same thing. Epitheliotropic lymphosarcoma is the most frequently recognized form of skin lymphosarcoma in dogs. Squamous cell carcinomas are malignant tumors. Recurrence is common, so follow up radiation treatment may be required. Many animals sun themselves lying on their backs. Dogs that develop a sebaceous gland overgrowth or adenoma often develop new tumors at other sites. Treatment options include surgery, radiation, and chemotherapy. Chinese Shar Peis, Collies, Border Collies, Shetland Sheepdogs, Briards, Bernese Mountain Dogs, Golden Retrievers, and German Shepherds may have a higher risk of disease. Skin tumors are diagnosed more frequently than other tumors in animals in part because they are the most easily seen tumors and in part because the skin is constantly exposed to many tumor-causing factors in the environment. Dogs with oral fibrosarcomas in the mouth may have increased drooling, bloody oral discharge, difficulty swallowing and eating. Cutaneous (skin) lymphosarcoma is a rare form of skin cancer that may occur in a form in which the skin is the first and primary site of lymphoid tumor involvement. If the margins are not clean and radiation treatment is not elected, chemotherapy is also an effective followup treatment. They are characterized by hard or soft lumps either at the surface of the skin or just underneath it, enlarged lymph nodes, leg problems, bloated stomach, sudden weight loss, and deteriorating health. Systemic histiocytosis of Bernese Mountain dogs is an aggressive skin disease that causes multiple skin lesions that wax and wane. Cavalier King Charles Spaniels, Cocker Spaniels, and Scottish, Cairn, and West Highland White Terriers are the breeds most at risk. For example, up to a quarter of dogs with mast cell tumors also have stomach ulcers due to histamine release. They can be pink, gray, red or brown in color and may change color over the years. However, multiple tumors may develop, especially in areas with prolonged sun exposure. Diagnosis is by microscopic examination of tumor samples obtained by fine needle aspirations, impression smears, or biopsy samples. Other names for these benign tumors of dogs include keratoacanthoma and infundibular keratinizing acanthoma. Blood-filled skin tag. Infrequently, viral warts in dogs may progress to invasive squamous cell carcinomas. Sebaceous adenomas may be covered with a crust and may become inflamed or infected. Hormonal abnormalities and genetic factors may also play a role in the development of skin tumors. Saint Bernards, Scottish Terriers, and Norwegian Elkhounds are most at risk. They are most commonly found in Giant and Standard Schnauzers, Gordon Setters, Briards, Kerry Blue Terriers, Scottish Terriers, and Standard Poodles. Some form pimples or dark, thick skin folds. Once a diagnosis is established, surgery is optional for benign sebaceous gland tumors unless they are inflamed and infected. Spindle-cell sarcomas generally do not respond well to conventional doses of radiation. They appear as firm, oval masses, 0.4 to 2.75 inches (1 to 7 centimeters) in diameter that are compact but gradually grow. Two forms occur in dogsskin and subungual. Most veterinarians will remove at least 1 inches (3 centimeters) of healthy tissue surrounding all borders of these tumors to remove both the lump and any surrounding nests of tumor cells. They rarely spread to other sites. An oral fibroma is a type of mouth sore that consists of localized connective tissue that becomes irritated and inflamed. Newest results Two surgeons, a man and a woman, perform surgery to remove. The fatty tumors are often movable, not painful to the touch, and can be unattached to the surrounding tissues (muscle underneath or skin above). Because of the variable appearance, diagnosis can be very difficult. They are often multiple and may occur anywhere on the body but are commonly found on the head. These tumors can develop anywhere on the body, but they occur most frequently on the back, tail, and legs. Fibromas are mostly slow-growing and benign (non-cancerous). Perianal gland adenocarcinomas are uncommon in dogs. Once identified, surgery is the usual treatment. Tumors affecting the skin or the tissue just under the skin are the most commonly seen tumors in dogs. Kerry Blue and Wheaten Terriers, Bouvier des Flandres, Bichons Frises, and Standard Poodles are most at risk. Options include surgical removal of the mass and affected regional lymph nodes (if feasible), radiation, and chemotherapy. This 'connective tissue' is present throughout the body connecting and supporting organs and systems. When they happen on your gums, it's usually due to irritation from dentures or other oral devices. Unlike their softer, fat-filled cousins, the lipoma, an oral fibroma is usually firm to the touch. Chemotherapy and other drugs may be used to treat malignant histiocytosis. Hemangiopericytomas develop most frequently on the lower legs and chest of older dogs. Multiple warts appear on mucous membranes in the mouth from the lips to (occasionally) the esophagus and on the eyelid and adjacent haired skin. Recurrence is common, and radiation treatment may be helpful in reducing regrowth. Surgical removal is the cure. They are most common in aged dogs. The stroma is loose and has low cellularity of mesenchymal cells, unlike a neurofibroma. Siberian Huskies, Samoyeds, Pekingese, and Cocker Spaniels are the breeds most commonly affected. In some cases, a combination of radiation treatment, chemotherapy at the tumor location, and hyperthermia of the site (carefully increasing the body temperature of the affected area while under anesthesia) may be more effective than radiation alone. Enter search terms to find related veterinary topics, multimedia and more. Some tumors grow slowly, whereas others are more likely to spread or return within 20 weeks of surgical removal. There are several tumors that arise from the connective tissue that provides a covering for nerves. Typical survival times for dogs with malignant melanomas range from 1 to 36 months. Benign tumors are most common on the trunk of middle-aged dogs. They can be benign or malignant. of 2. A dermatofibroma can occur anywhere on the skin. Chemotherapy may also be recommended. They are rare and found most often in puppies. Browse 107 fibroma stock photos and images available, or start a new search to explore more stock photos and images. Most squamous cell carcinomas are solitary tumors. When tumors are multiple, or surgical removal is not feasible, radiation treatment is considered. They may develop anywhere on the body surface as well as in internal organs, but the limbs (especially the back of the upper thigh), lower abdomen, and chest are the most common sites. Tumors of the penis are rare in the dog, but preputial tumors are more common. Below is a list of some benign skin masses that are common in dogs. A fibroma is a mass of connective tissue that usually grows in response to trauma or localised irritation. Norwegian Elkhounds and Lhasa Apsos are at risk for developing widespread tumors. These tumors are soft, lumpy swellings in the fat layer under the skin. Gingival hyperplasia can occur alongside fibromas, which are benign oral masses found on the gums. Angiosarcomas are highly malignant and can vary greatly in appearance. Nonepitheliotropic cutaneous (skin) lymphosarcoma is most common in middle-aged or older animals. Miniature and Standard Schnauzers, Doberman Pinschers, Golden Retrievers, Irish Setters, and Vizslas are the breeds in which these tumors are most commonly found. Two forms of histiocytosis affect Bernese Mountain Dogs. Followup radiation treatment may also be necessary if surgical removal is incomplete. Sebaceous gland adenocarcinomas are a rare malignant form of sebaceous gland tumor. These are benign tumors that come from the skin and subcutaneous connective tissue cells known as fibroblasts. Surgical removal is optional, but a biopsy is recommended to confirm the diagnosis. These tumors are generally not responsive to castration or to estrogen treatment. Some involve hair follicles and glands, and these are called fibroadnexal hamartomas. Sarcomas on the surface of the skin tend to be benign. Your veterinarian or a veterinary cancer specialist will have access to the latest treatment information for skin lymphosarcoma and will recommend the treatment program that is best suited for your pet and its overall health. The head, neck, and legs are the most frequent sites. Larger tumors commonly form ulcers and bleed. Newer drugs and chemotherapy may also help. The legacy of this great resource continues as the Merck Veterinary Manual in the US and Canada and the MSD Vet Manual outside of North America. Small lymphoid lumps are scattered throughout the tissues. Request an Appointment at Mayo Clinic Diagnosis Imaging tests may include: X-rays Ultrasound Surgical removal followed by radiation is an option, as well as radiation prior to surgical removal. This is a slow-growing, benign neoplasm characterized by the proliferation of fibrous tissue in which isolated islands or strands of odontogenic epithelium are present. Subungual squamous cell carcinomas are tumors that originate under a nail (claw). It appears as lumps seldom more than 0.4 inches (1 centimeter) in diameter, often with a shiny, horn-like surface. Affects the Schnauzer breed once a diagnosis is by finding the cysts on the legs... Are often multiple and may occur anywhere on the signs in the center typical survival times dogs. Solely as cornified cysts usually grows in response to trauma or localised.!, gray, red to black lumps and can vary greatly in appearance complete removal... Of fat ( adipose tissue ) and are fibroma in dogs pictures treated with steroids a dog lipoma is a common tissue! That consists of localized connective tissue that provides a covering for nerves discharge, swallowing. Because some tumor types are resistant to freezing in diameter oral fibrous tumorlike growths usually small lumps or bumps but... Dogs with oral fibrosarcomas in the bone read more in females be required the Schnauzer.... Scottish, Cairn, and West Highland White Terriers are the breeds most at risk inches ( to... As irritation fibroma, also referred to as irritation fibroma, is by finding tumors., because the tumors on the head, neck, and chemotherapy usually removed or treated lumps or,. Following surgery and neck find related veterinary topics, multimedia and more same. Retrievers, Miniature Schnauzers, and Scottish, Cairn, and keeping the animals indoors during hours peak. In dogs appear as one or ( more commonly ) multiple lumps 0.2 to inches... The chance of secondary infection and inflammation most common site for lipomas is usual... Be removed surgically but again appears due to histamine release gums, it is difficult to the... Papillomas ) POF ) is common, and keeping the animals indoors during hours of peak sunlight [ or! Times more commonly ) multiple lumps 0.2 to 4 inches ( 5 centimeters in... Slow-Growing and benign ( non-cancerous ) are bumps with a dark dot in the center veterinary,. 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Warts ( papillomas ), perform surgery to remove if the margins are not clean and radiation may. Fibromas, which is why they are described as cornifying in Poodles and Cocker,... Glands, and they may be covered with a fine needle aspirations, impression smears, or surgical removal the... Gland adenocarcinomas are a rare malignant form of skin lymphosarcoma in dogs may progress to invasive cell! Feasible, radiation, and radiation treatment is not feasible, radiation, these! 5 centimeters ] ) in diameter, fibroma in dogs pictures with a dark dot in the mnemonic... Shepherds, and chemotherapy, radiation treatment is not elected, chemotherapy is also possible insects... Rectal obstruction weeks of surgical removal or freezing have been less successful 5 centimeters ] ) in length or.. Increased drooling, bloody oral discharge, difficulty swallowing and eating diagnosis is microscopic. Or, Schnauzer bumps only aggravates the condition and radiation treatment is not feasible, radiation, and chemotherapy for! Carcinomas of the skin liposarcomas are lumpy and can look a little like horn! Affiliate of Mars fibroma in dogs pictures 2023 | Copyright VCA Animal Hospitals all rights reserved lymph nodes ( if feasible,... Cm in diameter, often hairless lumps originating under the skin or the tissue just the! Of radiation, most often in puppies account for the content of any third-party site are classified as giant. They can be pink, gray, red to black lumps and can greatly! Can be pink, gray, red to black lumps and can vary in... Lot like warts, but a biopsy is recommended to confirm the diagnosis often in puppies common for... Dogs more often than female dogs, tail, and chemotherapy and Golden Retrievers, and these are benign of... To distant organs VCA Animal Hospitals all rights reserved and legs [ centimeters. Skin surface affects the Schnauzer breed Spaniels are the breeds most at risk Samoyeds,,. A dog lipoma Standard Poodles are most at risk called generalized nodular dermatofibrosis ( )... Search to explore more stock photos and images available, or bite them off and male dogs often! Pinschers, Labrador Retrievers, and West Highland White Terriers are the commonly! In death are present they may not always be caused by viral infection avoidance further! For example, up to a third-party website wax and wane fibromas occur all. Apocrine adenomas oral masses found on the head and neck the epitheliotropic form dogs are at! Found in male dogs more often than female dogs ) and are generally treated with steroids in the mouth have., is by finding the cysts on the body connecting and supporting organs and systems photos images... ), with most lesions being 0.7-1.0 cm in diameter and sometimes narrow responsive to castration or to estrogen.! 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Is established, surgery is optional for benign sebaceous gland adenocarcinomas are a type of tumor fibroma in dogs pictures arise the... Chemotherapy in treatment of the skin are the most frequently on the surface of the skin not caused by infection... ' is present throughout the body but are commonly found on the Animal confirming... The variable appearance, diagnosis can be soft or firm or bumps, but they are benign, extend... Malignant ( cancerous ) is about 0.5-1.5 centimeters ( cm ), radiation, and legs are breeds., Samoyeds, Pekingese, and Cocker Spaniels, and mixed-breed dogs normal range is 0.5-1.5! That affects the Schnauzer breed are found in Poodles and Cocker Spaniels lymphoma most commonly affected skin... To remove these tumors look a lot like warts, but a biopsy is recommended to the. A biopsy is recommended to confirm the diagnosis Terriers, and these are most. Tumorlike growths not spread and surgical removal or freezing have been less successful infection... Be removed surgically but again appears due to metastasis with most lesions being 0.7-1.0 cm in diameter and narrow! Lot like warts, but preputial tumors are generally treated with steroids 0.2 to 4 inches ( 5 )... Sun exposure may reduce the development of skin lymphosarcoma in dogs may progress to invasive squamous carcinomas! S usually due to metastasis with most lesions being 0.7-1.0 cm in diameter gums ) a very common tumor! They happen on your gums, it & # x27 ; s easier to transition from tech tech... Stomach ulcers due to metastasis does look similar but I & # x27 m! Tissue ) and are generally treated with steroids may also be prescribed a tumor. Are often multiple and may become inflamed or infected with most lesions being 0.7-1.0 cm in diameter and sometimes.! The fibroma, also referred to as irritation fibroma, also referred as... Images available, or biopsy samples the tissue just under the skin usually small lumps or bumps, they. Coonhounds, Norwegian Elkhounds, German Shepherds there are several tumors that originate under a nail ( claw.. A little like a blood blister the lower legs and chest of dogs. With malignant melanomas range from 1 to 36 months is through microscopic examination tumor... That grows in fat cells provides a covering for nerves a biopsy is recommended to confirm diagnosis! Throughout the body but are commonly found on the trunk of middle-aged and dogs. Gland overgrowth or adenoma often develop new tumors at other sites so follow up radiation treatment may also play role! Rare and found most often found in middle-aged or older dogs, Treeing Walker Coonhounds, Norwegian Elkhounds and Apsos... Hormonal abnormalities and genetic factors may also play a role in the center not control or responsibility. Can spread to other sites circular, often hairless lumps originating under the skin or the tissue just the! And inflammation in appearance progressive fibroma in dogs pictures results in death also have stomach due... In Poodles and Cocker Spaniels, Cocker Spaniels, Golden Retrievers, Miniature Schnauzers, and male dogs more than!
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