title: Cystic schwannoma of the pelvis.
abstract: Schwannomas are benign tumours that arise from the Schwann cells of nerve fibres. They commonly occur in the head and neck, mediastinum and extremities. They are extremely rare in the pelvis. These are usually slow-growing tumours and are often detected incidentally. Preoperative diagnosis  is extremely difficult as there are no definitive signs on imaging. Aspiration biopsy is often inconclusive or misleading. Surgical excision is both diagnostic and therapeutic. As these tumours are often large in size, open excision is most commonly performed. We describe a case of a large,  cystic schwannoma of the pelvis causing bladder outlet obstruction and bilateral hydroureteronephrosis. Complete surgical excision was performed laparoscopically.
authors: Department of Urology, Calcutta National Medical College, 32 Gorachand Road, Beniapukur, Kolkata - 700 014, India. drtarunjindal@gmail.com
authors: T
authors: T
authors: Jindal
authors: S
authors: S
authors: Mukherjee
authors: M R
authors: MR
authors: Kamal
authors: R K
authors: RK
authors: Sharma
authors: N
authors: N
authors: Ghosh
authors: S N
authors: SN
authors: Mandal
authors: A K
authors: AK
authors: Das
authors: D
authors: D
authors: Karmakar
mesh_terms: D002114:Calcinosis / Q000175:diagnosis / Q000601:surgery; D005267:Femoral Nerve; D006801:Humans; D006869:Hydronephrosis / Q000209:etiology; D006987:Hypesthesia / Q000209:etiology; D008297:Male; D008875:Middle Aged; D009442:Neurilemmoma / Q000150:complications / Q000175:diagnosis / Q000601:surgery*; D010386:Pelvic Neoplasms / Q000150:complications / Q000175:diagnosis / Q000601:surgery*; D016658:Psoas Muscles; D012611:Scrotum / Q000294:innervation; D001748:Urinary Bladder Neck Obstruction / Q000209:etiology