Lymphomatoid Papulosis with a Unique T Follicular Helper-Like Phenotype.
The American journal of dermatopathology/American journal of dermatopathology(2020)
Abstract
Lymphomatoid papulosis (LyP) is a benign skin condition that typically presents with grouped or scattered lesions on the body that self-resolve within weeks or months of onset. LyP belongs to the group of CD30-positive lymphoproliferative disorders. Several histological variants of LyP exist, and the histological features of LyP can overlap with other lymphoproliferative disorders; therefore, both histological and clinical correlations are needed for a proper diagnosis of LyP. We report an unusual case of LyP displaying a T follicular helper cell-like phenotype and histopathologically resembling the primary cutaneous CD4-positive small-sized to medium-sized T-cell lymphoproliferative disorder.
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Key words
lymphomatoid papulosis,cutaneous T-cell lymphoma,primary cutaneous CD4-positive small,medium-sized T-cell lymphoproliferative disorder,T follicular helper cell
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