melanoma
A malignant, usually aggressive tumor composed of atypical, neoplastic melanocytes. Most often, melanomas arise in the skin (cutaneous melanomas) and include the following histologic subtypes: superficial spreading melanoma, nodular melanoma, acral lentiginous melanoma, and lentigo maligna melanoma. Cutaneous melanomas may arise from acquired or congenital melanocytic or dysplastic nevi. Melanomas may also arise in other anatomic sites including the gastrointestinal system, eye, urinary tract, and reproductive system. Melanomas frequently metastasize to lymph nodes, liver, lungs, and brain.
MONDO:0019496
neuroendocrine neoplasm
excluded_subClassOf
MONDO:0021143
melanocytic neoplasm
is_a
malignant melanoma
exact
melanoma
exact
melanoma (disease)
exact
melanoma, malignant
exact