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Sector B-scan ultrasonographic 'hemangiomalike' pattern.

W E Cappaert, R V Kiprov, K E Frank

Archives of Ophthalmology (Chicago, Ill. : 1960)

|January 1, 1983

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Sector B-scan ultrasonography revealed a characteristic "hemangioma-like" pattern in patients with unilateral exophthalmos. This pattern, however, was not exclusive to cavernous hemangiomas, appearing in other orbital masses as well.

Area of Science:

Ophthalmology
Medical Imaging
Diagnostic Ultrasound

Background:

Unilateral exophthalmos is a clinical sign requiring accurate diagnosis of the underlying orbital lesion.
Ultrasonography is a valuable non-invasive tool for evaluating orbital masses.
Distinguishing between different orbital pathologies based solely on imaging can be challenging.

Purpose of the Study:

To evaluate the ultrasonographic pattern of orbital masses in patients presenting with unilateral exophthalmos.
To determine the specificity of the observed ultrasonographic pattern for cavernous hemangioma of the orbit.

Main Methods:

Sector B-scan ultrasonography was performed on eleven patients with unilateral exophthalmos.
Ultrasonographic findings were analyzed for characteristics such as mass shape, borders, reflectivity, and sound transmission.

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Postoperative histopathological examination was used to confirm the diagnosis of orbital lesions in a subset of patients.

Main Results:

All eleven ultrasonograms demonstrated a consistent "hemangioma-like" pattern.
This pattern was characterized by a rounded, well-outlined mass with a sharp anterior border, moderate to strong reflectivity, and fair to good sound transmission.
While six cases were pathologically confirmed as cavernous hemangioma, similar patterns were observed in hemangiopericytoma, lymphangioma, orbital varix, meningioma, and mixed cell tumors.

Conclusions:

The "hemangioma-like" pattern on sector B-scan ultrasonography is a common finding in various orbital masses causing unilateral exophthalmos.
This ultrasonographic pattern is not specific for cavernous hemangioma and can be seen in other orbital lesions.
Differential diagnosis of orbital masses requires correlation of ultrasonographic findings with clinical presentation and potentially other imaging modalities or biopsy.