| bite the hand that sprays you. | a 56-year-old man presented with a cutaneous lesion on his right hand (figure 1). approximately 6 weeks previously, he had traveled to costa rica for missionary work. during his travel he used a diethyltoluamide-containing insect repellant, but spent one night in the jungle without a mosquito net. four weeks after his return, he noted a 3 x 2.5-cm ulcer with raised edges and surrounding erythema on the dorsum of his right hand. the patient recalled applying insect repellant with his right hand t ... | 2006 | 17085999 |