Identification of T cell in parapsoriasis infiltrates. Use of an anti-human T-cell serum and the immunoperoxidase technique

Abstract

"Parapsoriasis" is a term used to include a heterogeneous group of conditions, one variant of which, at least, eventuates in mycosis fungoides in a substantial percentage of cases. The T-cell origin of mycosis fungoides is well established. The lack of similar information on lymphoid cell types in parapsoriasis prompted an immunoperoxidase study using a specific antihuman T-cell serum in a group of seven patients with parapsoriasis. Our findings demonstrated a preponderantly T-cell infiltrate in the categories of parapsoriasis examined.