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Updated: Aug 24, 2026

Microvascular Decompression: Salient Surgical Principles and Technical Nuances
Published on: July 5, 2011
Cutis verticis gyrata secondary to a cerebriform intradermal nevus
Marcia Ramos-e-Silva1, Gesymary Martins, Paula Dadalti
1Sector of Dermatology, School of Medicine and HUCFF-UFRJ, Universidade Federal do Rio de Janeiro, Brazil. ramos.e.silva@dermato.med.br
Abstract:
We report the case of a 30-year-old black man with a large mass consisting of longitudinal parallel ridges and furrows on the left parietal region. A small, single, hyperpigmented macule was present at birth and gradually grew and extended over the years. Cutis verticis gyrata was suspected, and an investigation was performed to discharge the possibility of pachydermoperiostosis. However, results of biopsies obtained from 3 different lesional areas showed the same histopathologic features--deep-seated hair follicles and clusters of nevus cells concentrated in the dermis. Cerebriform intradermal nevus is a rare cause of cutis verticis gyrata. Early diagnosis is extremely important to prevent the development of malignant melanoma.
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