Open Access Open Badges Case report

Neurofibroma invading into urinary bladder presenting with symptoms of obstructed defecation and a large perineal hernia

Duminda Subasinghe1, Chathuranga Tisara Keppetiyagama1, Chandu De Silva2, Neville D Perera3 and Dharmabandhu N Samarasekera1*

Author Affiliations

1 The National Hospital of Sri Lanka, University Surgical Unit, Colombo, Sri Lanka

2 Department of Pathology, University of Colombo, Colombo, Sri Lanka

3 Department of Urology and renal transplant, The National Hospital of Sri Lanka, Colombo, Sri Lanka

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BMC Surgery 2014, 14:21  doi:10.1186/1471-2482-14-21

Published: 16 April 2014



Pelvic floor hernias pose a diagnostic and a treatment challange. Neurofibromatosis is a rare systemic disease, and urinary tract involvement is rare.

Case presentation

Here we report a case of a 54-year-old female with multiple neurofibromatosis who presented with features of obstructed defecation and was found to have a large perineal hernia. At surgery, we found an unusual herniation of a large neuropathic bladder and rectum through a perineal defect. She underwent reduction cystoplasty and repair of the pelvic floor using a prolene mesh. Subsequent histopathological examination confirmed a large neurofibroma infiltrating the urinary bladder.


Neurofibromatosis of the bladder is rare it should be considered as a differential diagnosis in patients presenting with symptoms of obstructed defecation.

Multiple neurofibromatosis; Obstructive defecation; Perineal hernia