Kikuchi fujimoto disease in a young male post-COVID -19 vaccination

Abstract

Kikuchi disease (Kikuchi-Fujimoto disease) is one of the rarest forms of lymphadenopathy. It is also known as necrotizing lymphadenitis. The patients usually present with fever and lymphadenopathy. Here is a case of Kikuchi-Fujimoto disease presented with fever and cervical lymphadenopathy. Radiological imaging revealed matted lymph nodes. Fine needle aspiration of the lymph node revealed granulomatous inflammation. Acid Fast stain was negative and further investigations ruled out tuberculosis. A histopathological biopsy of the lymph node confirmed the diagnosis of Kikuchi-Fujimoto disease. The patient was treated with medications and the patient's condition improved in follow-up. Tuberculosis must be ruled out in such conditions as the symptoms and radiological and FNAC findings mimicking tuberculosis. The diagnosis of Kikuchi-Fujimoto disease is made by histopathology and confirmed by immunohistochemistry.