To the Editor.—
Lymphoblastic lymphoma (LBL) is a tumor of lymphoid precursors with a lymphomatous presentation. For many authors the distinction between acute lymphoblastic leukemia (ALL) and LBL is somewhat arbitrary: Lymphoblastic lymphoma and ALL are variants of the same disease. Cutaneous localizations are seen in 16% of LBL at the first examination,1 but are rarely the only single presenting finding (so-called primary cutaneous LBL). Therefore, we describe a case of primary cutaneous LBL with its clinical, histological, and immunological aspects.
Report of a Case.—
A 22-year-old woman was seen who had an indurated and infiltrated purplish plaque on her left cheek for 2 years. This plaque remained stable during the 2-year period. Many dermohypodermal erythematous nodules of 2 to 3 cm in diameter appeared within a few weeks; these nodules were localized to the shoulders, forearms, right buttock, and thighs. The lesions were painful and the patient complained
Vaillant L, Lorette G, du Sorbier CM. Primary Cutaneous Lymphoblastic Lymphoma of Non-B, Non-T Phenotype. Arch Dermatol. 1990;126(3):400–402. doi:10.1001/archderm.1990.01670270132028
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