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  • noun

Synonyms for melanoma

any of several malignant neoplasms (usually of the skin) consisting of melanocytes

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An amelanotic melanoma appears similar to lymphoma, squamous cell carcinoma or other non-pigmented conditions, such as pyogenic granuloma, a conjunctival haematoma, a foreign body or argyrosis.
The rarity of our case is the presence of amelanotic melanoma in palatine tonsil.
Primary amelanotic melanoma of the breast: combating a rare cancer [published online ahead of print October 27, 2010].
Melanoma is frequently pigmented and an amelanotic melanoma must be distinguished from other simulating lesions.
Such cases of amelanotic melanoma in situ lack classical morphologic features and may thus easily elude clinical diagnosis.
A case of a secondary amelanotic melanoma of the epiglottis was reported by Ikeda et al in 1991.
The remaining four lesions included one amelanotic melanoma and three with none or only one of the ABC criteria.
Epithelioid sarcomas are sometimes composed of spindle-shaped cells, and they may be confused with other malignant spindle-cell neoplasms, such as synovial sarcomas, fibrosarcomas, angiosarcomas, malignant fibrous histiocytomas, malignant extrarenal rhabdoid tumor, epithelioid hemangioendothelioma, and amelanotic melanoma.
CHICAGO -- A seemingly benign skin lesion that initially presented as a possible dermatofibroma turned out to be an unusual amelanotic melanoma, Sarvenaz Zand reported in a poster at the annual meeting of the American Society of Dermatopathology.
Depending on the patient's age and the location of the tumor, the differential diagnosis includes malignant schwannoma, malignant fibrous histiocytoma, fibrosarcoma, amelanotic melanoma, malignant lymphoma, squamous cell carcinoma, extramedullary plasmacytoma, metastatic tumor, glandular tumor, chondroma, chondrosarcoma, osteogenic sarcoma, and inverted papilloma.