The following case history is presented because of the rarity of this condition on the Pacific coast. Tropical diseases about the Bay of San Francisco are rapidly increasing in number, and the practitioner must be on the constant lookout for them.
A young man, aged 30, single, a cigar-maker by occupation, was referred to me for extensive swelling of the penis and scrotum. This patient had been in Mexico in 1900 for three months, and in 1902 for a period of six months. There was no other history of tropical exposure. He stated that the disease appeared insidiously and had never been accompanied by pain. There had never been periods of chill, high temperature or diaphoresis, but he said that at times there had been local heat in the scrotum, although unaccompanied by general fever.
The scrotum was found to be very large, about the size of a