Gene/Protein Disease Symptom Drug Enzyme Compound
Pivot Concepts:   Target Concepts:
Query: EC:3.4.24.11 (CD10)
 9,792 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Mucosa-associated lymphoid tissue (MALT) lymphoma is listed in the new World Health Organization classification as extranodal marginal zone B-cell lymphoma of MALT. Most cases occur predominantly in adults and are rare in children or adolescents. We report, with a review of earlier literature, a MALT lymphoma of the lower lip in a 7-year-old immunocompetent child. The patient had a sessile, indurated, and firm mass on the lower lip without regional lymphadenopathy. Microscopically, dense lymphoid cell infiltrates composed of small- to medium-sized centrocyte-like cells and plasmacytoid cells infiltrating around scattered reactive germinal centers were observed, with formation of typical lymphoepithelial lesions. Immunohistochemical staining demonstrated positivity of atypical lymphoid cells for CD20, CD43, CD79a, and Bcl-2 and negativity for CD3, CD5, CD10, CD23, Ki-1, Bcl-10, and ALK. Cytoplasmic kappa light chain restriction was demonstrated. We conclude that this case represents the youngest patient with a MALT lymphoma of the lip.
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PMID:Pediatric mucosa-associated lymphoid tissue (MALT) lymphoma of lip: a case report and literature review. 1912 58

A 52-year-old female presented with hematochezia. A computed topography (CT) scan revealed diffuse proximal gastric thickening with enlarged perigastric lymph nodes. The esophagogastroduodenoscopy (EGD) revealed a diffusely thickened gastric wall with hemorrhagic, friable mucosa, and multiple areas of ulceration. The biopsies showed diffuse amyloid deposition along with transmural proliferation of small- to medium-sized lymphocytes and plasma cells. The gastric mucosa showed lymphoepithelial lesions and chronic inactive gastritis. Immunohistochemical staining of the neoplastic lymphocytes revealed expression of CD20, bcl-2, bcl-10, Ki-67 proliferative index of 5%, and lambda light chain restriction. There was no expression of CD5, CD43, CD10, CD3, cyclin D1, and bcl-6. Immunophenotyping by flow cytometry revealed an abnormal B lymphocyte population with expression of CD45, CD19, CD20, and FMC7. The histomorphological, immunohistochemical and flow cytometric features were consistent with primary gastric amyloidosis associated with extranodal marginal zone lymphoma of mucosa associated lymphoid tissue (MALT lymphoma).
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PMID:Isolated gastric amyloidoma in the setting of marginal zone MALT lymphoma: case report and review of the literature. 2497 61