A 55 year old male presented with history suggestive of FUO. He had mutiple firm discrete cervical lymphadenopathy. Serum angiotensin conveing enzyme was elevated in this patient. It point to the diagnosis of:: (A) Non hodgkins lymphoma, (B) Kikuchi disease, (C) Sarcoidosis, (D) Chronic lymphocytic leukemia
Answer is C. Elevated level of serum angiotensin conveing enzyme may point to the diagnosis of sarcoidosis in patients with FUO and lymphadenopathy. Ref: Harrison, Edition-18, Page-162.