Granular Cell Tumor: An Uncommon Benign Neoplasm

Area of Science:

• Oncology
• Dermatopathology
• Neurosurgery

Background:

• Granular cell tumors (GCTs) are rare neoplasms originating from the neural sheath.
• Typically presenting as solitary, asymptomatic lesions in the oral cavity or skin.
• Internal organ involvement is infrequent.

Purpose of the Study:

• To report a rare case of a painful GCT on the back.
• To discuss diagnostic challenges when GCTs mimic other conditions.
• To emphasize the importance of histopathological confirmation.

Main Methods:

• Case presentation of a 48-year-old female patient.
• Clinical examination and imaging.
• Surgical excision and histopathological analysis.

Main Results:

• Histopathology confirmed a granular cell tumor.
• The lesion was characterized by polyhedral cells with eosinophilic granules.
• The tumor presented as a painful swelling, mimicking an adnexal tumor.

Conclusions:

• Granular cell tumors can present atypically, including painful presentations.
• Differential diagnosis of back lesions should consider GCTs.
• Accurate histopathological examination is crucial for definitive diagnosis.