Neurogenic bladder revealing a pernicious anemia: One case report and literature review

Background: Neurogenic or neuropathic bladder is defined as any defective functioning of the bladder caused by impaired innervations. Pernicious anemia is a rare cause of neurogenic bladder and it is often accompanied by other neurological manifestations. The standard treatment is based on parenteral vitamin administration. We report a unique case of pernicious anemia revealed by a neurogenic bladder succefully managed by vitamin B12 administration. Case presentation: A 45-year-old man presented with lower urinary tract symptoms (LUTS) with urine retentions. The patient was an important postvoid residual volume. The uroflowmetry result of the patient was low. Cystoscopy reveals a normal urethra, prostatic fossa, and bladder. Urodynamic testing demonstrated a failure voiding bladder. The diagnostic of pernicious anemia was suspected in laboratory exams which have showed megaloblastic anemia and Serum antibodies to gastric parietal cells, the diagnostic was confirmed by gastric biopsy. The patient was traited by oral administration of vitamin B12. At his 6 months follow-up, clinical symptoms had improved, and there was no significant postvoid residual (PVR). Conclusion: The vesicosphincteriens disorders in pernicious anemia are very little detail in the literature .our case is to our knowledge the first to have urinary voiding dysfunction as the only symptom of pernicious anemia with spectacular improvement after vitamin B12 administration.