Spindle cell and epithelioid cell nevi with atypia and metastasis (malignant Spitz nevus). 1989

K J Smith, and T L Barrett, and H G Skelton, and G P Lupton, and J H Graham
Department of Dermatopathology, Armed Forces Institute of Pathology, Washington, D.C.

We report on the clinical and pathologic features of 32 lesions diagnosed as malignant spindle cell and epithelioid cell nevus (S&E nevus). Because of the clinical or initial histopathologic diagnosis of malignant melanoma, six patients had lymph node dissection. Three of these patients also had an enlarged lymph node. In all six cases, metastatic spindle or epithelioid cells were found in at least one of the resected lymph nodes. Of the 30 patients with follow-up information, including all six patients with lymph node metastases, all are alive and well. No recurrences or further metastases have been found. On histopathologic reevaluation, all the lesions had features of S&E nevi. Study of these cases suggests that although some lesions with features of S&E nevi may involve local lymph nodes, widespread metastases do not result.

UI MeSH Term Description Entries
D008207 Lymphatic Metastasis Transfer of a neoplasm from its primary site to lymph nodes or to distant parts of the body by way of the lymphatic system. Lymph Node Metastasis,Lymph Node Metastases,Lymphatic Metastases,Metastasis, Lymph Node
D008854 Microscopy, Electron Microscopy using an electron beam, instead of light, to visualize the sample, thereby allowing much greater magnification. The interactions of ELECTRONS with specimens are used to provide information about the fine structure of that specimen. In TRANSMISSION ELECTRON MICROSCOPY the reactions of the electrons that are transmitted through the specimen are imaged. In SCANNING ELECTRON MICROSCOPY an electron beam falls at a non-normal angle on the specimen and the image is derived from the reactions occurring above the plane of the specimen. Electron Microscopy
D009362 Neoplasm Metastasis The transfer of a neoplasm from one organ or part of the body to another remote from the primary site. Metastase,Metastasis,Metastases, Neoplasm,Metastasis, Neoplasm,Neoplasm Metastases,Metastases
D009508 Nevus, Pigmented A nevus containing melanin. The term is usually restricted to nevocytic nevi (round or oval collections of melanin-containing nevus cells occurring at the dermoepidermal junction of the skin or in the dermis proper) or moles, but may be applied to other pigmented nevi. Nevus, Melanocytic,Nevi, Melanocytic,Nevi, Pigmented,Pigmented Moles,Melanocytic Nevi,Melanocytic Nevus,Pigmented Nevi,Pigmented Nevus
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D012867 Skin The outer covering of the body that protects it from the environment. It is composed of the DERMIS and the EPIDERMIS.
D012878 Skin Neoplasms Tumors or cancer of the SKIN. Cancer of Skin,Skin Cancer,Cancer of the Skin,Neoplasms, Skin,Cancer, Skin,Cancers, Skin,Neoplasm, Skin,Skin Cancers,Skin Neoplasm

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