de Oliveira Santana, Marcela A.Butt, SairaNassiri, Mehdi2023-06-132023-06-132022-03-28de Oliveira Santana MA, Butt S, Nassiri M. Central Nervous System Whipple Disease Presenting as Hypersomnolence. Cureus. 2022;14(3):e23572. Published 2022 Mar 28. doi:10.7759/cureus.23572https://hdl.handle.net/1805/33720Whipple disease (WD) is a rare systemic infection caused by Tropheryma whipplei (T. whipplei). Its clinical features are broad, and atypical clinical patterns such as the involvement of the heart, lungs, or the central nervous system (CNS) can occur. We report a case of a 58-year-old man who had been previously diagnosed with classic WD; he was evaluated for functional decline, extreme somnolence, and recurrent admissions for hydrocephalus. The patient was diagnosed with a neurologic relapse of WD after a positive T. whipplei polymerase chain reaction (PCR) from a cerebral spinal fluid (CSF) sample. He was successfully treated with IV ceftriaxone followed by oral trimethoprim-sulfamethoxazole (TMP-SMX). In classic WD, the CNS symptoms usually present in the late phase of the disease or in the form of relapse, especially after an inadequate treatment course. This case highlights the importance of considering CNS involvement in WD when a patient with a previous history of classic WD presents with hypersomnolence, hydrocephalus, or other neurologic symptoms.en-USAttribution 4.0 InternationalCentral nervous systemHydrocephalusHypersomnolenceTropheryma whippleiWhipple diseaseArticle