An 8-year-old girl presented with a persistent 5 × 2-cm violaceous doughy plaque on the left lower leg. Histologic examination revealed hyperkeratosis, variable but mild epidermal hyperplasia, and vacuolar interface changes with melanin pigment incontinence confined to the papillary dermis. A diagnosis of pretibial lymphoplasmacytic plaque in children was made. This report outlines the clinical characteristics of this entity and a review of other cases reported in the literature.
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Pretibial Lymphoplasmacytic Plaque in Children: Case Report and Review of the Literature.
Am J Dermatopathol
April 2019
Division of Dermatology, Department of Medicine, University of Toronto, Toronto, Ontario, Canada.
An 8-year-old girl presented with a persistent 5 × 2-cm violaceous doughy plaque on the left lower leg. Histologic examination revealed hyperkeratosis, variable but mild epidermal hyperplasia, and vacuolar interface changes with melanin pigment incontinence confined to the papillary dermis. A diagnosis of pretibial lymphoplasmacytic plaque in children was made.
View Article and Find Full Text PDFExpression of Peripheral Node Addressins by Plasmacytic Plaque of Children, APACHE, TRAPP, and Primary Cutaneous Angioplasmacellular Hyperplasia.
Appl Immunohistochem Mol Morphol
July 2018
Department of Pathology, University of Valencia, Valencia, Spain.
High-endothelial venules are a common feature of 3 types of cutaneous pseudolymphomas: pretibial lymphoplasmacytic plaque (PLP) of children, acral pseudolymphomatous angiokeratoma of children (APACHE), and T-cell rich angiomatoid polypoid pseudolymphoma (TRAPP). In addition, primary cutaneous angioplasmacellular hyperplasia (PCAH) overlaps with these other 3 conditions. We intend to study the expression of peripheral node addressins in PLP, APACHE, TRAPP, and PCAH.
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