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Results for “NEVUS, PIGMENTED”

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At least 19 recordsLinked to original sources
PubMed1989

Proliferating giant pigmented nevus: a report of an unusual tumor occurring in association with a congenital giant pigmented nevus.

A 32-year-old Japanese woman with a giant pigmented congenital nevus of the torso presented with a massive pigmented tumor mass of the vulva which grew over an 8-year period. Histologically, the tumor was composed of benign appearing nevus-like cells with focal areas of extensive fibrous response. The tumor cells were positive for S-100 protein and with an antihuman melanoma antibody (MoAb 225, 28S) stain. Electron microscopy confirmed the nevomelanocytic nature of the tumor cells and demonstrated peculiar cytoplasmic crystalline tubular structures similar to those seen in cells infected with herpes virus type II. We propose the term "proliferating giant pigmented nevus" for this previous undescribed tumor.

Adult↗
PubMed1981

[Combined nevus: malignant blue nevus and giant pigmented nevus (author's transl)].

A combined nevus occurring on the right temporal region of a 30-year-old man with multiple giant pigmented nevi on the head, trunk and extremities was surgically removed. Histologically, the cellular blue nevus found in the deep corium fulfilled the criteria of malignancy in so far as mitoses and foci of tumor necroses were present.

Adult↗
PubMed1984

A giant congenital pigmented nevus in a horse.

Pigmented nevi have not been widely recognized in domesticated animals. We describe, for the first time, a giant congenital pigmented nevus in a horse. Because of a prominent neuroid component within the lesion, neurofibromatosis was the major differential diagnosis.

Animals↗
PubMed1976

Defining the malignant potential of the giant pigmented nevus.

An unusual giant pigmented nevus, containing lymphocytic infiltrates and apparent muscle invasion, but without the presence of melanoma, is described in detail--including its related immunological parameters. The controversy concerning the malignant potential of giant pigmented nevi, and the paradoxes that are encountered clinically, are discussed.

Adult↗