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Neurofibroma Within a Nevus Sebaceus: A Case Report
Dylan Maldonado1, Frances Hanson2, Heather Layher1
1Department of Dermatology, Texas Tech University Health Sciences Center, Lubbock, USA.
Cureus
|October 5, 2022
Summary
Nevus sebaceus, a congenital skin condition, can rarely develop secondary tumors. This case reports the first instance of a neurofibroma, a type of mesenchymal tumor, arising within a nevus sebaceus.
Area of Science:
- Dermatology
- Pathology
- Oncology
Background:
- Nevus sebaceus is a congenital skin malformation typically appearing on the head or neck.
- It often presents as an alopecic plaque in childhood, evolving into a verrucous lesion at puberty.
- Secondary tumors can develop within nevus sebaceus, though mesenchymal tumors are rare.
Observation:
- A patient presented with a nevus sebaceus on the scalp.
- Surgical excision and histopathological examination were performed.
- The lesion revealed a nevus sebaceus alongside a desmoplastic trichilemmoma and a neurofibroma.
Findings:
- The histopathology confirmed the presence of nevus sebaceus with associated tumors.
- A desmoplastic trichilemmoma, a tumor of the follicular infundibulum, was identified.
- A neurofibroma, a mesenchymal tumor, was also found, marking its first association with nevus sebaceus.
Implications:
- This case expands the known spectrum of secondary tumors associated with nevus sebaceus.
- It highlights the rare occurrence of mesenchymal tumors, specifically neurofibroma, in this context.
- Further research may elucidate the specific mechanisms driving tumor development in nevus sebaceus.
