Inflammatory myofibroblastic tumor of the urinary bladder during pregnancy: A case report

A 31 year-old pregnant female who had not menstruated for 31 weeks presented to The Affiliated Hospital of Chifeng College (Chifeng, China) with painless gross hematuria, which had been present for 10 days. A computed tomography scan revealed a tumor of 5.8x6.3 cm in diameter. A biopsy was not obtained prior to surgery. Following the initial workup, the patient underwent a cesarean section and partial cystectomy of bladder. Pathological examination revealed inflammatory myofibroblastic tumor (IMT). An initial cytoscope examination was performed one year after surgery, with subsequent follow-up cystoscope examinations performed every three months, and at the time of writing the patient was alive, with no evidence of tumor recurrence. IMT of the urinary bladder is a rare benign lesion and to the best of our knowledge, this is the first reported case describing IMT of the urinary bladder during pregnancy. This study describes the process of diagnosis and management of the patient.