Diagnostic Pitfalls in 'Low-Grade Lymphoma' of the Orbit and Lacrimal Gland.

摘要

Within the orbit and lacrimal gland the term "low grade lymphoma" encompasses the following types of lymphoma: ENMZL, FL, MCL and chronic lymphocytic leukaemia/small lymphocytic lymphoma (CLL/SLL). The typical and atypical immunophenotype of these entities is discussed. The diagnosis of ENMZL, by far the most common low grade lymphoma to occur in these areas, is to some extent a difficult diagnosis and is often one of exclusion. The pitfalls of follicular colonisation and the concept of atypical follicular lymphoma are discussed.