A Patient with Amelanotic Malignant Melanoma in the Rectum
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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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PATIENT Male, 55 FINAL DIAGNOSIS: Melanoma Symptoms: Worsening constipation • tenesmus • weight loss MEDICATION - Clinical Procedure: Chemoradiation therapy Specialty: Oncology. OBJECTIVE Challenging differential diagnosis. BACKGROUND Malignant melanoma is usually readily diagnosed by the presence of melanin granules. Although amelanotic melanoma contains a few melanin granules, it is oft...
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Malignant melanoma (MM) of the vagina is a rare tumor. It accounts for less than 1% of all MM, and less than 3% of all primary malignant tumors of the vagina (1). In a review of reported cases, Stellato et al. (2) found less than 150 cases of primary melanoma of the vagina in the literature. The histologic appearance of melanoma may be heterogeneous. In fact, especially amelanotic melanomas may...
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We present the case of a 74-year-old white female admitted to the Department of Dermatology because of a tumor in the IV-V interdigital area of her right foot. A crimson, dome-shaped tumor with a granular, spongy surface (diameter 4 cm) had developed over a period of about 3 months. The biopsy, stained with H and E, revealed an anaplastic malignant tumor. Additional immunochemical staining with...
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ژورنال
عنوان ژورنال: Nihon Rinsho Geka Gakkai Zasshi (Journal of Japan Surgical Association)
سال: 2014
ISSN: 1345-2843,1882-5133
DOI: 10.3919/jjsa.75.3115