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Hydroa Vacciniforme. Presented by Dr. Guy and Dr. Jacob.
A girl, aged 9 years, presented discrete vesicles the size of a pea on the arms, face and ears, some of which resulted in scar formation. Attacks occurred in the spring and fall.
A Case for Diagnosis. Presented by Dr. Phillips.
E. R., a barber, aged 40, presented a lesion on the left side of abdomen about 3 inches (7.6 cm.) in diameter. It consisted of a somewhat reniform arrangement of ulcers which had coalesced in several places. The ulceration extended through the skin and into the subcutaneous tissues, was sharply marginated, and contained but little pus. It had started to ulcerate three years prior to presentation. Previously there had been a pea-sized tumor at the site of the present ulceration; the first ulcer developed on this red tumor mass and ulcerated it away. Unfiltered roentgen-ray was used and the area