Female urinary retention from a huge periurethral mass
The present case has been reported in the journal Urology Case Reports.

Immunoglobulin G4-related disease is a systemic disease, recognized as extensive T-lymphocyte and IgG4-positive plasma cells. It can present as inflammatory pseudotumor in various organs.

A female 75 years old, diagnosed IgG4-related autoimmune pancreatitis, presented with urinary retention. Pelvic examination showed well-defined, soft tissue mass, bulging from anterior vaginal wall.

MRI pelvis demonstrated a huge periurethral mass, size 6.2 x 4.4 x 4.2 cm, encasing the urethra, extending from bladder neck to distal urethra, and mimicking the prostate gland.

Tissue biopsy revealed compatible with IgG4-related disease. Immunosuppresive drugs were given for few months and the patient could void normally.

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