Inflammatory myofibroblastic tumour of the urinary bladder: a rare entity IMT

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Theebanraja Ramalingam
Ikhwan Mohamad
Nik Mohd Nurhafizi Nik Anuar
Mohamed Ashraf Mohamed Daud
Anani Aila Mat Zin



Inflammatory myofibroblastic tumour (IMT) is a type of neoplasm composed of myofibroblast and fibroblastic spindle cells, with presence of inflammatory aggregates of plasma cells, lymphocytes, and eosinophils. However, IMTs rarely occur in the urinary bladder. We report a 20-year-old man who presented with haematuria for two days. Cystoscopy revealed a solitary tumour arising from the dome of the urinary bladder. The patient underwent trans urethral resection of bladder tumour (TURBT). The tissue histopathology examination (HPE) of the bladder tumour was suggestive of IMT of the urinary bladder. IMTs in the lower urogenital tract are special type of IMT. They are usually associated with surgical trauma and have been proposed to be an exuberant reparative reaction. Some IMTs are very aggressive, spreading locally, recurring, and requiring pharmacotherapy. A typical IMT can be locally aggressive and may require radical surgical resection (radical cystectomy) with close follow-up.