Benign glomus tumor of the urinary bladder

Area of Science:

• Urology
• Oncology
• Pathology

Background:

• Glomus tumors are rare mesenchymal neoplasms typically found in adults.
• While usually benign, some glomus tumors exhibit atypical or malignant behavior.
• These tumors most commonly affect the extremities, particularly the subungual region, and rarely involve internal organs.

Observation:

• A 63-year-old male patient presented with hematuria.
• Cystoscopy revealed a polypoid lesion on the anterior bladder wall.
• Biopsy confirmed the lesion as a benign glomus tumor.

Findings:

• This case represents the first documented instance of a benign glomus tumor originating in the urinary bladder.
• The tumor was successfully diagnosed via biopsy following cystoscopic examination.

Implications:

• This report expands the known anatomical sites for glomus tumors.
• It broadens the differential diagnosis for bladder neoplasms, particularly for rare mesenchymal tumors.
• Awareness of this presentation is crucial for accurate diagnosis and patient management.