DETROIT DERMATOLOGICAL SOCIETY

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Abstract
Lichen Nitidus (with Koebner's Phenomenon).Presented byDr. John N. Grekin. S. S., a Negro boy 6 years old, shows minute skin-colored or lighter, somewhat shiny papules of pinhead size and smaller. These are widely distributed on the trunk, extremities and penis and are often grouped. There is pronounced accentuation over knees and elbows. In both these areas linear distribution of the papules can be seen, as in Koebner's phenomenon. These lesions were noted for the first time in July 1948, and the number of papules increased up to one month before presentation. After that time no increase was seen. There is no history of pertinent previous diseases. There is tuberculosis in the father's family, and the child has been exposed. Roentgenologic examination of the chest showed no pathologic changes. Biopsy of several papules showed typical lichen nitidus. DISCUSSION Dr. John N. Grekin: I have been unable to find

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