Kikuchi-Fujimoto Disease with Subsequent Meningoencephalitis Insights into Rare Complications – A Case Report

7prits.Histologically, KFD is characterized by subacute necrotizing lymphadenopathy, paracortical lymph node expansion with patchy, well-circumscribed areas of necrosis showing abundant karyorrhectic nuclear debris 8 and the absence of neutrophils and eosinophils.This case study will emphasize the unusual clinical presentation and encephalitis, a rare complication, thus highlighting the necessity of timely diagnosis and management. Case PresentationA 36 years man, a quality inspector at a factory by occupation, having no comorbid but smoker for 15 years presented in emergency with complaints of high-grade fever with rigors and chills for 3 months which was on and off initially but continuous for 1 month, Neck swellings (lymphadenopathy) for 3 months.He also complained of dyspnea on exertion, body aches, headache, and neck pain.The headache was pan-cephalic and associated with fever.Constipation and nausea were his recent complaints for 3 days but there was no history of cough, loose stools, or burning micturition.He had undocumented weight loss but no history of tuberculosis contact or travel.On physical examination, systemic examination of respiratory, gastrointestinal, neurology, and genitourinary systems was unremarkable except lymphadenopathy.There was a 32 cm enlarged lymph