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Updated: Jan 19, 2026

Testing of all Six Semicircular Canals with Video Head Impulse Test Systems
Published on: April 18, 2019
Chondroma in the hypoglossal canal: A case report
Shintaro Arai1, Katsuyoshi Shimizu1, Tohru Mizutani1
1Department of Neurosurgery, Showa University School of Medicine, Shinagawa, Tokyo, Japan.
Background:
Intracranial chondromas are rare tumors arising from the skull base. They are usually accompanied by functional impairments of some cranial nerves. However, hypoglossal nerve dysfunction is rare.
Case Description:
We report on a 57-year-old woman presenting with chondroma of the right hypoglossal canal leading to right hypoglossal nerve palsy.
Conclusions:
This report suggests that chondroma should be considered as a differential diagnosis in cases of hypoglossal lesions.
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Types of Reports I: Hands-off Report
Following are the key components and categories of hand-off reports:
Purpose and Process:
Types of Reports II: Incident or Occurrence Report
Purposes:
In the healthcare industry, reports play a crucial role in documenting incidents within an agency. The primary objective of these reports is to ensure patient safety, uphold the...

