Case Report: Leathery black plaque on the temple and scalp [version 2; peer review: 1 approved, 1 approved with reservations]

Background Epidermal nevus sebaceous, commonly known as the nevus sebaceous of Jadassohn, is a congenital sebaceous hamartoma. It typically manifests as a single yellowish plaque across the head and neck and is composed of sebaceous glands. It commonly occurs during infancy and grows during puberty....

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Published inF1000 research Vol. 12; p. 1514
Main Authors Rusia, Kaveri, Madke, Bhushan, Meghe, Soham, Kashikar, Yash
Format Journal Article
LanguageEnglish
Published London Faculty of 1000 Ltd 2024
F1000 Research Ltd
Subjects
Biopsy
Cancer
case report
Case reports
Consent
Dermatology
eng
hamartoma
Hyperplasia
Microscopy
Neoplasia
Nevus
nevus sebaceous
Plaques
Puberty
Scalp
Sebaceous gland
Tumors
case report
hamartoma
scalp
nevus sebaceous
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Summary:Background Epidermal nevus sebaceous, commonly known as the nevus sebaceous of Jadassohn, is a congenital sebaceous hamartoma. It typically manifests as a single yellowish plaque across the head and neck and is composed of sebaceous glands. It commonly occurs during infancy and grows during puberty. Usually, it follows a benign course; however, in a few cases, it can be malignant. This is the case of a 13-year-old child with verrucous plaques on the temple and scalp. Case report We report the case of a 13-year-old boy with a steadily developing hyperpigmented verrucous plaque on the scalp and ipsilateral side of his face. A dermoscopic examination revealed ridges and fissures in a cerebriform pattern with yellowish-gray globules and a papillary appearance. Physical examination and laboratory tests revealed no abnormalities. Biopsies were taken from the scalp and temple area, and the findings were consistent with the diagnosis of nevus sebaceous. The patient was referred to a plastic surgeon for a staged excision. Conclusions We describe a unique example of a sebaceous nevus that affected the scalp and ipsilateral side of the face. As this hamartomatous growth carries the risk of cancer development, a dermatologist must identify the condition and begin treatment before malignant transformation occurs. This example of multiple verrucous plaques is an exception.
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ISSN:2046-1402
2046-1402
DOI:10.12688/f1000research.142548.2