Abstract BACKGROUND: Dermoscopic evaluation of pigmented lesions includes assessment of criteria suggestive of melanocytic proliferation. Dermoscopic diagnosis may be hampered when a nonmelanocytic lesion displays one or more melanocytic features. OBJECTIVE: To evaluate the incidence of misleading dermoscopic features characteristic of melanocytic lesions in pigmented seborrheic keratosis (PSK). METHODS: We evaluated 402 clinically typical PSKs from 138 patients with at least one clinically identifiable PSK. RESULTS: Approximately 10% of PSKs displayed one or more melanocytic features, the most frequent being a "false" pigment network. CONCLUSION: The occurrence of a "false" pigment network in PSK can be misleading in the differential diagnosis of clinically equivocal lesions. A correct diagnosis can only be obtained if all available dermoscopic criteria are appropriately assessed together with the clinical examination.
FALSE "MELANOCYTIC" PARAMETERS SHOWN BY PIGMENTED SEBORRHEIC KERATOSES: A FINDING WHICH IS NOT UNCOMMON IN DERMOSCOPY / V. DE GIORGI; D. MASSI; M. STANTE; P. CARLI.. - In: DERMATOLOGIC SURGERY. - ISSN 1076-0512. - STAMPA. - 28:(2002), pp. 776-779.
FALSE "MELANOCYTIC" PARAMETERS SHOWN BY PIGMENTED SEBORRHEIC KERATOSES: A FINDING WHICH IS NOT UNCOMMON IN DERMOSCOPY
MASSI, DANIELA;
2002
Abstract
Abstract BACKGROUND: Dermoscopic evaluation of pigmented lesions includes assessment of criteria suggestive of melanocytic proliferation. Dermoscopic diagnosis may be hampered when a nonmelanocytic lesion displays one or more melanocytic features. OBJECTIVE: To evaluate the incidence of misleading dermoscopic features characteristic of melanocytic lesions in pigmented seborrheic keratosis (PSK). METHODS: We evaluated 402 clinically typical PSKs from 138 patients with at least one clinically identifiable PSK. RESULTS: Approximately 10% of PSKs displayed one or more melanocytic features, the most frequent being a "false" pigment network. CONCLUSION: The occurrence of a "false" pigment network in PSK can be misleading in the differential diagnosis of clinically equivocal lesions. A correct diagnosis can only be obtained if all available dermoscopic criteria are appropriately assessed together with the clinical examination.I documenti in FLORE sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.