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Congenital Ectopic Cartilaginous Nodule on the Left Cheek: A Rare Diagnostic Challenge
Zohreh Khodashenas1, Hanieh Pourkalhor1, Mehri Vafadar1
1Department of Dermatology, Faculty of Medicine, Head of Student Research Committee, Research Deputy, Shahed University, Tehran, Iran.
Background & Objective:
Congenital cutaneous lesions containing mature cartilage are exceedingly rare and often of uncertain histogenesis.
Case Report:
A 17-year-old male with a lifelong left cheek nodule underwent complete excision and histopathologic examination. Microscopy revealed a deep dermal island of mature hyaline cartilage without atypia, associated epithelial components, or adnexal hyperplasia.
Conclusion:
The findings represent ectopic cartilage of unclear etiology. Connective tissue nevus with cartilaginous differentiation and chondroma cutis are favored considerations. Complete excision was curative, with an excellent cosmetic outcome at 5-month follow-up.
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