The document describes a case of a 62-year-old man presenting with lower urinary tract symptoms due to bladder outflow obstruction. Investigations including ultrasound, CT scan and cystoscopy revealed a heterogeneous mass arising behind the bladder, which was diagnosed as a neoplastic mucocele of the appendix causing extrinsic compression of the bladder neck.

2. Bladder outflow obstruction Harim Mohsin

7. Approach to patient

13. Anatomy

21. Embryology

25. Distal urethral stenosis

31. Posterior urethral valves

33. Ureterocele

34. Uretrocele

36. Bladder diverticulum

38. Ureteropelvic junction obstruction

39. Pelvic junction obstruction

41. Ectopic ureter

42. Ectopic ureter

44. VUR

46. Urethral stricture

48. Contracture of bladder neck

52. Benign prostatic hyperplasia

56. Bladder carcinoma

57. Bladder carcinoma

60. Cystocele

64. The End