NCIt related terms : Anaplastic large cell lymphoma, ALK positive; Anaplastic large cell lymphoma, ALK-positive, unspecified site;
NCIt definition : A T-cell peripheral lymphoma composed of usually large, pleomorphic, CD30 positive
T-lymphocytes with abundant cytoplasm. It is characterized by the presence of a translocation
involving the ALK gene and expression of ALK fusion protein. Most patients present
with peripheral and/or abdominal lymphadenopathy, and often have advanced disease
and extranodal involvement.;