Related Experiment Videos
Orbital venous anomalies demonstrated by spiral computed tomography
1Department of Ophthalmology Massachusetts Eye and Ear Infirmary, Harvard Medical School, Boston, USA.
Ophthalmology
|October 6, 1997
Summary
Acute hemorrhage in orbital venous malformations can mimic tumors. Spiral computed tomography (CT) during a Valsalva maneuver helps diagnose these anomalies, even in asymptomatic patients, preventing unnecessary surgery.
Area of Science:
- Ophthalmology
- Radiology
- Vascular Malformations
Background:
- Orbital venous malformations can present with acute hemorrhage, mimicking other orbital pathologies.
- Atypical presentations of orbital hemorrhage pose diagnostic challenges, potentially leading to misdiagnosis as intraorbital neoplasms.
Observation:
- Three patients with orbital hemorrhage were evaluated using initial CT and spiral CT during Valsalva maneuver.
- Initial CT scans showed localized, homogeneous masses in the posterior/inferior orbit.
- Spiral CT during Valsalva maneuver revealed an enlarging inferior orbital mass not apparent otherwise.
Findings:
- Localized hemorrhages can be mistaken for solid intraorbital masses, leading to potential misdiagnosis.
- Orbital venous malformations may present with varying degrees of proptosis or remain asymptomatic.
- Spiral CT during Valsalva maneuver effectively identified venous anomalies in patients with suspected orbital venous malformations.
Implications:
- Accurate diagnosis of orbital hemorrhage is crucial to avoid unnecessary surgical intervention.
- Spiral CT with Valsalva maneuver is a valuable tool for diagnosing orbital venous malformations.
- This technique aids in identifying venous anomalies even in asymptomatic individuals presenting with atypical symptoms.