Subungual amelanotic melanoma: a diagnostic pitfall.
نویسندگان
چکیده
منابع مشابه
Subungual amelanotic malignant melanoma.
We report a 61-year-old, male patient complaining from prolonged lesion on his great toe that has been previously treated surgically. Histopathological examination of toenail specimen revealed the presence of nests of atypical tumor cells that led to the diagnosis of amelanotic malignant melanoma. Four years ago, he was diagnosed as gout due to extreme erythema and edema in the same toe. He has...
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Amelonotic malignant melanoma; Sinonasal cavity; Nasal polyposis; Immunocytochemistry Abstract Malignant melanoma involving mucosal surface of the head and neck region is rare. Malignant melanoma involving the nasal cavity is even rarer and accounts for less than 1% of cases. Prognosis is generally poor with unpredictable outcome. Regional and distant metastasis is common at presentation. We pr...
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Malignant melanoma is the most common primary malignant tumor of the foot. Amelanotic/hypomelanotic melanoma is characterized by either little or no pigmentation and account for 2-8% of all primary melanomas. Amelanotic/hypomelanotic can often be misdiagnosed and this leads to delaying the diagnosis until advanced ulcerations depths resulted in metastases. In this report, we highlight a case of...
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Subungual melanoma is uncommon and accounts for just 2% to 3% of all cutaneous melanomas. Less than 10% of subungual melanomas are amelanotic and 90% of these occur on the thumb or great toe. They typically appear in the seventh decade of life and are associated with a delayed diagnosis and a poor prognosis. Amelanotic subungual melanoma generally manifests as a persistent vascular or ulcerated...
متن کاملSubungual melanoma: a deceptive disorder.
Subungual melanoma is an uncommon form of acral melanoma that arises within the nail bed. The incidence for acral melanomas is similar worldwide, but the proportion is higher in dark-skinned individuals. The subungual form represents about 2% of cutaneous non-sun induced melanomas in the western world, and up to 75% in Africans, 10% in Japanese, and 25% in the Chinese of Hong Kong. Up to 33% of...
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ژورنال
عنوان ژورنال: Postgraduate Medical Journal
سال: 1990
ISSN: 0032-5473
DOI: 10.1136/pgmj.66.773.200