A Case Study of Cutaneous Myiasis Caused by Dermatobia hominis (Linnaeus Jr., 1781) (Diptera: Cuterebridae) Found in Hiroshima, Japan
An imported case of cutaneous myiasis caused by Dermatobia hominis found in Hiroshima City, Japan is reported. A patient was a 23-year-old Brazilian male who was employed by a Japanese enterprise. The patient returned to Brazil for several weeks and returned to Japan on January 22th, 2000. During his stay in Brazil, he suffered insect bite on the left lower thigh around January 10th. On January 27th, the patient noticed a furuncle-like inflammatory nodule on the bite site with strong pain. Then he consulted at dermatology clinic and was diagnosed as having bee stings. Following day the patient noticed a moving white body protruding through an orifice of the nodule, and he removed a larva (maggot) from the nodule by himself. The maggot was 12.5 mm in length and 6.0 mm in diameter with a pair of oral hooks at anterior end of the body, with 8 prominent double transverse rows of stout dark spines existed on the body surface. By insectological examination the present maggot is identified as a 2nd stage larva of Dermatobia hominis (Linnaeus Jr, 1781) based on morphological characteristics. To our best knowledge, the present report is a 24th finding of imported cutaneous myiasis by Dermatobia hominis in Japan.