Urticaria Pigmentosa (Xanthelasmoidea). Presented by Dr. Fred Wise.
D. F., a boy aged 6 weeks, exhibited the eruption shortly after birth. The family history is irrelevant, and the patient's general health appears to be unaffected.The eruption is universal, with predominance of the lesions on the torso and extremities. The entire body exhibits a distinct yellow color. The face is swollen; the eyelids are edematous and of a rather deep tan, and the skin of the face is smooth and glistening and devoid of other surface markings. The trunk and extremities show mingling of violaceous and light yellow tints and exhibit innumerable elevated papules and nodules, from the size of a pea to that of a dime, so that almost the entire body appears to be studded with these lesions, which are firmer to touch than the adjacent, nonelevated skin. The papules and nodules vary in color, exhibiting bluish, yellow