A case of chancroid.

After a visit to Hong Kong, a 27-year-old salesman developed penile ulceration which failed to respond to three weeks' penicillin therapy. He then presented to hospital with acute paraphimosis. A clinical diagnosis of chancroid was confirmed by isolation of Haemophilus ducreyi. The ulcers healed after sulphonamide and streptomycin therapy. Although chancroid is an uncommon venereal disease in Australia, its incidence is still high in many tropical countries. It should be considered as a possible cause of genital ulceration in patients who have travelled overseas.