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Pseudotumoral hemicerebellitis in a young male sailor with complete recovery after steroid therapy
Khizer Masroor Anns1, Faheemullah Khan2, Zainab Aslam Saeed Memon3
1Medical College, The Aga Khan University, Karachi, Pakistan.
Abstract:
Pseudotumoral hemicerebellitis is a rare presentation of acute cerebellitis, which involves the inflammation of a single cerebellar hemisphere and most commonly affects children. It mimics a tumor on imaging, hence given the name. In this report, we present a case of pseudotumoral hemicerebellitis in a 30-year-old male who presented to the emergency room (ER) with complaints of vertigo, vomiting, and a headache.
Insights
Pseudotumoral hemicerebellitis, a rare inflammation of one cerebellar hemisphere, can mimic tumors. This case highlights its occurrence in a 30-year-old male presenting with vertigo, vomiting, and headache.
Area of Science:
- Neurology
- Pediatric Neurology
- Neuroradiology
Background:
- Acute cerebellitis is an inflammation of the cerebellum.
- Pseudotumoral hemicerebellitis is a rare variant affecting a single cerebellar hemisphere.
- This condition commonly affects children but can occur in adults.
Observation:
- A 30-year-old male presented with acute symptoms.
- Symptoms included vertigo, vomiting, and headache.
- Initial imaging suggested a tumorous lesion.
Findings:
- The patient was diagnosed with pseudotumoral hemicerebellitis.
- This diagnosis was made despite the patient's age, which is atypical.
- The presentation mimicked a cerebellar tumor.
Implications:
- Highlights the importance of considering pseudotumoral hemicerebellitis in adult differential diagnoses.
- Emphasizes the need for careful radiological interpretation in cerebellitis.
- Contributes to understanding the spectrum of cerebellitis presentations.

