Cytodiagnosis of epithelioid malignant melanoma (amelanotic) and diagnostic dilemmas
نویسندگان
چکیده
منابع مشابه
Sinonasal amelanotic malignant melanoma – A diagnostic dilemma
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...
متن کاملSubungual 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...
متن کاملAn amelanotic variant of B16 malignant melanoma.
MATERIALS AND METHODS Murine malignant melanoma (B16) cells tolerant to 10 and 30 pg of BrdU per ml were maintained for more than one year in culture medium lacking the analog. The analog-containing environment was also eliminated by the injection of cells at several subcultures into host animals. Cells withdrawn from BrdU retained the enlarged, flattened, nonpigmented morphology that is charac...
متن کاملAmelanotic malignant melanoma of the vagina
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...
متن کاملParotid Gland Primary Amelanotic Malignant Melanoma
Four months previously, the patient had presented to another clinic with a painless mass in the right parotid region. There was no skin lesion at that time. A fine needle biopsy was performed. The pathology results indicated that the mass was a malignant tumor, and the surgeon suggested total parotidectomy; however, the patient was afraid of surgery and did not seek medical attention again unti...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Cytology
سال: 2014
ISSN: 0970-9371
DOI: 10.4103/0970-9371.151134