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Vascular loop in the cerebellopontine angle: Clinical-radiological correlation
V Mejía-Quiñones1, J A Valderrama-Chaparro1, S Paredes-Padilla2
1Centro de Investigaciones Clínicas (CIC), Fundación Valle del Lili, Cali, Colombia.
Radiologia
|October 15, 2022
Summary
Vascular loops in the cerebellopontine angle are not linked to most auditory symptoms, but an association with tinnitus was observed. Imaging findings require clinical correlation after ruling out other causes.
Area of Science:
- Neurology
- Radiology
- Otolaryngology
Background:
- The brainstem's posterior fossa location places its nerves in close proximity to vascular structures.
- Understanding these relationships is crucial for diagnosing neurological and auditory symptoms.
Purpose of the Study:
- To investigate the correlation between imaging-detected vascular loops in the cerebellopontine angle and vestibulocochlear nerve symptoms.
- To determine the clinical significance of these vascular findings.
Main Methods:
- Retrospective analysis of 102 patients with suspected vascular loops in the cerebellopontine angle between 2011 and 2017.
- Review of clinical history and imaging studies to assess symptom correlation.
Main Results:
- Dizziness was the most frequent symptom (41.18%).
- Vascular loops were unilateral in 43 patients and bilateral in 59.
- No significant association was found with sensorineural hearing loss, nystagmus, or vertigo, but a correlation with tinnitus was observed.
Conclusions:
- The presence of vascular loops in the cerebellopontine angle is not strongly associated with most auditory symptoms, except for tinnitus.
- All imaging findings should be reported and interpreted in conjunction with clinical presentation after excluding other potential causes.
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