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A 69-year-old man presented with several months' history of progressive bladder outlet obstruction culminating in acute urinary retention. A DRE revealed a uniformly enlarged prostate gland. He had mild renal impairment with a serum urea level of 9.5 mmol/L and creatinine of 131 mmol/L. His PSA level was 19.3 ng/mL and so, after catheterization, a transrectal biopsy was taken, which revealed a small focus of carcinoma in situ. Subsequently, TURP was performed and 12 g of prostate resected; the GC patient made an uneventful recovery; his PSA level returned to normal and has remained so for 18 months.

The human pinworm Enterobius vermicularis is normally found within the human gastrointestinal tract. Pregnant females migrate out of their host's anus at night to lay their eggs perianally. As a consequence of this nocturnal migration some worms find their way into adjacent orifices, most commonly the female genitourinary tract, producing irritative symptoms such as vulvovaginitis. A case of pinworm infestation of the uterus presented as postmenopausal bleeding. (J Clin Pathol 1998;51:401-402)

Varicella Zoster affecting the sacral dermatomes is a rare but well recognised cause of urinary retention. Only one case of erectile dysfunction associated with Varicella Zoster has previously been described, which was longstanding, but no cases of transient erectile dysfunction following Zoster infection are recorded. We present one such case.

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