title: Acute pseudotumoral hemicerebellitis: diagnosis and neurosurgical considerations of a rare entity.
abstract: Acute pseudotumoral hemicerebellitis is an exceptionally rare unilateral presentation of acute cerebellitis mimicking a tumor. It typically has a benign course without specific therapy; thus, recognizing this entity is important to avoid needless surgical intervention. MRI provides the key for diagnosis and usually reveals a diffusely swollen cerebellar hemisphere with no well-defined mass. Some patients will require neurosurgical assistance by means of ventriculostomy or posterior fossa decompression. We present a 17-year-old girl with pseudotumoral hemicerebellitis, review the available literature, and discuss the diagnosis and therapeutic dilemma from the neurosurgical perspective.
authors: Department of Neurosurgery, Hadassah-Hebrew University Medical Center, P.O. Box 12000, Jerusalem 91120, Israel; Department of Endovascular Neurosurgery and Interventional Neuroradiology, Hadassah-Hebrew University Medical Center, Jerusalem, Israel. Electronic address: jcohenns@yahoo.com.
authors: José E
authors: JE
authors: Cohen
authors: Department of Neurosurgery, Hadassah-Hebrew University Medical Center, P.O. Box 12000, Jerusalem 91120, Israel; Department of Endovascular Neurosurgery and Interventional Neuroradiology, Hadassah-Hebrew University Medical Center, Jerusalem, Israel; Department of Radiology, Hadassah-Hebrew University Medical Center, Jerusalem, Israel.
authors: Moshe
authors: M
authors: Gomori
authors: Department of Neurosurgery, Hadassah-Hebrew University Medical Center, P.O. Box 12000, Jerusalem 91120, Israel.
authors: Moni
authors: M
authors: Benifla
authors: Department of Neurosurgery, Hadassah-Hebrew University Medical Center, P.O. Box 12000, Jerusalem 91120, Israel.
authors: Eyal
authors: E
authors: Itshayek
authors: Department of Neurosurgery, Hadassah-Hebrew University Medical Center, P.O. Box 12000, Jerusalem 91120, Israel.
authors: Yigal
authors: Y
authors: Shoshan
mesh_terms: D000293:Adolescent; D002526:Cerebellar Diseases / Q000175:diagnosis* / Q000473:pathology / Q000628:therapy*; D002531:Cerebellum / Q000473:pathology; D019299:Decompression, Surgical; D003937:Diagnosis, Differential; D004660:Encephalitis / Q000175:diagnosis* / Q000473:pathology / Q000628:therapy*; D005260:Female; D007839:Functional Laterality; D006801:Humans; D008279:Magnetic Resonance Imaging; D019635:Neurosurgical Procedures; D014696:Ventriculostomy
keywords: Acute disseminated encephalomyelitis; Cerebellar tumor; Cerebellitis; Posterior fossa decompression