Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0268596 (EMA)
 2,520 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Anaplastic lymphoma kinase (ALK)-positive diffuse large B-cell lymphoma is a rare and distinct variant of diffuse large B-cell lymphoma with characteristic morphologic, immunophenotypic, and cytogenetic features. We report a case of ALK-positive diffuse large B-cell lymphoma in a 44-year-old male with progressively worsening unilateral nasal congestion and obstruction secondary to a nasopharyngeal mass. Radiologically, the mass was showed to extend to orophanrynx from nasopharynx. Histologically, the tumor cells exhibited plasmablastic morphology with expression of Bob-1, CD4, CD10, CD45, CD56, CD138, EMA, MUM1, Oct-2, and kappa immunoglobulin light chain, but negative for CD20, CD30, CD79a, PAX-5, and lambda. More importantly, the neoplastic cells showed positive immunoreactivity for ALK with exclusive cytoplasmic granular staining pattern. This case represented the second reported ALK-positive diffuse large B-cell lymphoma in the nasopharyngeal region.
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PMID:Anaplastic lymphoma kinase-positive diffuse large B-cell lymphoma presenting as an isolated nasopharyngeal mass: a case report and review of literature. 2132 7

We report an uncommon case and histopathologic work-up of Hodgkin lymphoma of the nasopharynx in a 49-year old female patient who presented with a 2-year complaint of bilateral nasal congestion. Histologic study revealed a lymphocyte rich subtype of classic Hodgkin lymphoma. Immunohistochemical analysis revealed CD15, CD30, OCT-2, BOB.1, and MUM-1 expression by the neoplastic cells and a lack of expression of CD45, CD20, CD3, EMA, and EBER. The review of the literature showed that Hodgkin lymphoma of the nasopharynx is rare, the most common reported subtype is the mixed cellularity, and Hodgkin lymphoma of the nasopharynx has a favorable prognosis.
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PMID:Hodgkin Lymphoma of the Nasopharynx: Case Report with Review of the Literature. 2610 28