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Telangiectasia Macularis Eruptiva Perstans. Presented by Margaret Storkan, MD.
A 54-year-old white man had a history of an asymptomatic eruption affecting the trunk for ten years. His general health was excellent.Examination revealed a generalized eruption, involving all aspects of the trunk, that was comprised of roughly ovoid redbrown macules. All were about the same size. The macules did not urticate when rubbed. Laboratory studies were all within normal limits.
Dr. Leo Indianer: Well over 50% of the cells were mast cells.Dr. Craig Williamson: When mast cell stain is requested, what fixative should be used for the specimen?Dr. Indianer: Routine formalin fixative is acceptable. All fixative solutions work well.Dr. S. Ayres, Jr.: It is difficult to accept the diagnosis of urticaria pigmentosa on clinical grounds because the lesions do not become elevated when rubbed.Dr. Louis Winer: There is an increase in melanin in the basal
Mihan R. THE LOS ANGELES DERMATOLOGICAL SOCIETY. Arch Dermatol. 1974;109(6):919. doi:10.1001/archderm.1974.01630060083038