Norbert Haas1, Beate-Maria Henz. 1. Department of Dermatology, Medical Faculty (Charité), Humboldt-University Berlin, Berlin, Germany. norb.haas@charite.de
Abstract
BACKGROUND: We present here a patient with an unusual type of nail plate pigmentation featuring pseudopod formation. OBJECTIVE: To identify additional dermoscopic criteria. METHODS: Dermoscopy of the nail with control biopsy. RESULTS: Pseudopods of the nail resulted from erythrocytes entrapped between the layers of the nail plate. CONCLUSION: Pseudopod formation of the nail may represent a diagnostic criterion to distinguish hemorrhage and melanoma of the nail apparatus.
BACKGROUND: We present here a patient with an unusual type of nail plate pigmentation featuring pseudopod formation. OBJECTIVE: To identify additional dermoscopic criteria. METHODS: Dermoscopy of the nail with control biopsy. RESULTS: Pseudopods of the nail resulted from erythrocytes entrapped between the layers of the nail plate. CONCLUSION: Pseudopod formation of the nail may represent a diagnostic criterion to distinguish hemorrhage and melanoma of the nail apparatus.
Authors: Nilton Di Di Chiacchio; Débora Cadore de Farias; Bianca Maria Piraccini; Sergio Henrique Hirata; Bertrand Richert; Martin Zaiac; Ralph Daniel; Pier Alessandro Fanti; Josette Andre; Beth S Ruben; Philip Fleckman; Phoebe Rich; Eckart Haneke; Patricia Chang; Judith Dominguez Cherit; Richard Scher; Antonella Tosti Journal: An Bras Dermatol Date: 2013 Mar-Apr Impact factor: 1.896