Fine needle aspiration diagnosis of Kikuchi's lymphadenitis in axillary lymphadenopathy: A rare condition with an unusual presentation site.

Kikuchi's lymphadenitis (KL) is a benign, self-limited, reactive condition with unknown etiology, usually seen in young women of Asian descent. It is most commonly seen in the cervical lymph nodes; however, in rare cases, axillary lymph nodes are involved. Cytological diagnosis is possible with adequate lymph node sampling by fine needle aspiration in the proper clinical setting. Pathologists face some difficulties in making the diagnosis of KL due to overlapping findings among other conditions, such as tuberculosis, lupus lymphadenitis, non-specific reactive conditions, and even malignant lymphoma. Diagnosis by cytopathology has the advantage of using minimally invasive interventions, which avoid the unnecessary excision of the lymph node for this benign condition. Herein, we report a case of KL in a patient who presented with right axillary lymphadenopathy.