Unna, Paul Gerson


Unna,

Paul Gerson, German dermatologist and staining expert, 1850-1929. Unna disease - Synonym(s): seborrheic dermatitisUnna mark - a pale vascular birthmark found on the nape of the neck in 25% to 50% of normal persons. Synonym(s): nape nevusUnna stain - an alkaline methylene blue stain for plasma cells.Unna syndrome - Synonym(s): seborrheic dermatitisUnna-Pappenheim stain - a contrast stain used to detect RNA and DNA in tissue sections; used to demonstrate plasma cells during chronic inflammation.Unna-Taenzer stain - Synonym(s): Taenzer stainUnna-Thost syndrome - uniform keratoderma of the palms and soles, usually presenting in the first six months of life.