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Pedican
Pediatric cancer database
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Basic Information

Gene ID

6693

Name

SPN

Synonymous

CD43|GPL115|LSN;sialophorin;SPN;sialophorin

Definition

GALGP|galactoglycoprotein|leukocyte sialoglycoprotein|leukosialin|sialophorin (gpL115, leukosialin, CD43)|sialophorin (leukosialin, CD43)

Position

16p11.2

Gene type

protein-coding

Cancer type

Abstract

Pulmonary malignant lymphoma;Immunological

A malignant lymphoma arising in the lung of a pediatric HIV-positive patient exhibited histologic and clinical features of low-grade B-cell lymphoma of mucosa-associated lymphoid tissue (MALT). Clinically, the neoplasm consisted of a 4-cm mass in the left-upper lobe of the lung of a 7-year-old girl. The lung masswas surgically resected. Monoclonal immunoglobulin heavy and light chain gene rearrangements were shown by Southern blot. Monoclonality of light chain expression was demonstrated by immunohistochemistry. Coexpression of Leu-22 (CD43) by the tumor cells supported the diagnosis of lymphoma. The remainder of the pulmonary parenchyma distal to the mass was associated with pulmonary lymphoid hyperplasia/lymphocytic interstitial pneumonitis, which may have been apredisposing factor. Gastric MALT lymphomas have recently been described in adult HIV-antibody-positive patients. Ours represents the first reported case of a pulmonary MALT lymphoma in a pediatric HIV-positive patient. In addition, at age7, this is the youngest patient reported with a MALT lymphoma.

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