# A Rare Case of Cutaneous Meningioma Arising on the Scalp: Diagnostic Challenges, Immunohistochemical, and Molecular Features

## TL;DR

A rare case of cutaneous meningioma on the scalp highlights the need for combining clinical and lab findings for accurate diagnosis.

## Contribution

This case report emphasizes the diagnostic value of integrating histopathology, immunohistochemistry, and molecular studies for rare scalp tumors.

## Key findings

- A scalp lesion initially thought to be an epidermoid cyst was diagnosed as cutaneous meningioma.
- Combining clinical, histopathological, and molecular data is crucial for diagnosing rare extracranial meningiomas.
- Cutaneous meningioma is a rare condition requiring multidisciplinary diagnostic approaches.

## Abstract

The differential diagnosis for scalp lesions is broad, ranging from simple cysts to tumors. We present the case of a 49-year-old woman with a scalp lesion initially suspected to be an epidermoid cyst but later diagnosed as cutaneous meningioma on biopsy. As a rare form of extracranial meningioma, this case underscores the importance of correlating clinical findings with histopathology, such as integrating morphological features, immunohistochemical markers, and molecular studies, to establish a diagnosis in challenging cases with inconclusive clinical or radiological findings.