Abstract
Histopathological examination with immunohistochemistry is the gold standard in the diagnosis and classification of Non Hodgkin’s lymphoma (NHL). Fine needle aspiration cytology (FNAC), without immunophenotyping has a very limited role to play in the diagnostic workup of NHL. However, cytomorphological study may at times give definitive clues to know the type of NHL. We present a case of Anaplastic lymphoma kinase negative Anaplastic large cell lymphoma (ALCL) which on initial FNAC was missed but on review showed significant number of Hallmark cells.
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