Data di Pubblicazione:
1994
Citazione:
Malignant proliferating onycholemmal cyst / E. Alessi, F. Zorzi, R. Gianotti, A. Parafioriti. - In: JOURNAL OF CUTANEOUS PATHOLOGY. - ISSN 0303-6987. - 21:2(1994 Apr), pp. 183-188.
Abstract:
A slowly growing malignant tumor of the nail unit in a 74-year-old female is reported. At light microscopy, the tumor was composed of small keratinous cysts with abrupt central keratinization, and of solid nests and strands of atypical keratinocytes filling the dermis and penetrating the phalangeal bone. In our view, this can be regarded as the malignant analog of the keratin cysts arising from the nail bed epithelium, as first reported by Samman in 1959. Since, according to several authors, the nail bed epithelium is comparable to the outer root sheath of the follicle and since the reported tumor showed some analogies with malignant proliferative trichilemmal cyst, it is suggested that this new entity be designated as malignant proliferating onycholemmal cyst.
Tipologia IRIS:
01 - Articolo su periodico
Keywords:
aged; cysts; female; humans; nail diseases; neoplasms
Elenco autori:
E. Alessi, F. Zorzi, R. Gianotti, A. Parafioriti
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