The plaque-Type blue nevus (PTBN) is a rare variant of blue nevus, of which only a few reports are described. A nodular growth within a preexistent PTBN should always alert to the possibility of malignant transformation. The authors report the first case of an atypical Spitz tumor arising on a congenital linear PTBN in a 60-year-old woman. The diagnosis of "atypical Spitz tumor" is here used to describe a microscopic "gray zone" in which it is not possible to differentiate with adequate certainty between a Spitz nevus and a spitzoid melanoma. This report adds to and summarizes the small body of literature describing PTBN and discusses diagnosticand clinical implications.
Atypical Spitz tumor arising on a congenital linear plaque-Type blue nevus: a case report with a review of the literature on plaque-Type blue nevus / Rongioletti, Franco; Guadagno, Antonio; Campisi, Caterina; Cabiddu, Francesco; Kutzner, Heinz; Parodi, Aurora; Fiocca, Roberto. - In: AMERICAN JOURNAL OF DERMATOPATHOLOGY. - ISSN 0193-1091. - 37:12(2015), pp. 915-919. [10.1097/DAD.0000000000000282]
Atypical Spitz tumor arising on a congenital linear plaque-Type blue nevus: a case report with a review of the literature on plaque-Type blue nevus
RONGIOLETTI, FRANCO;
2015-01-01
Abstract
The plaque-Type blue nevus (PTBN) is a rare variant of blue nevus, of which only a few reports are described. A nodular growth within a preexistent PTBN should always alert to the possibility of malignant transformation. The authors report the first case of an atypical Spitz tumor arising on a congenital linear PTBN in a 60-year-old woman. The diagnosis of "atypical Spitz tumor" is here used to describe a microscopic "gray zone" in which it is not possible to differentiate with adequate certainty between a Spitz nevus and a spitzoid melanoma. This report adds to and summarizes the small body of literature describing PTBN and discusses diagnosticand clinical implications.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.