Ultrasonographic features of ciliary body mesectodermal leiomyoma

Area of Science:

• Ophthalmology
• Medical Imaging
• Oncology

Background:

• Ciliary body mesectodermal leiomyomas (CBL) are rare intraocular tumors.
• Accurate diagnosis is crucial for appropriate management and prognosis.

Purpose of the Study:

• To characterize the ultrasonographic features of histopathologically confirmed CBL.
• To assess the utility of conventional ultrasound, color Doppler flow imaging (CDFI), and contrast-enhanced ultrasound (CEUS) in CBL diagnosis.

Main Methods:

• Retrospective analysis of ultrasonographic data from 18 patients with confirmed CBL.
• Evaluation of tumor size, shape, echogenicity, margin characteristics, internal homogeneity, and secondary changes.
• Assessment of CDFI and CEUS findings, including vascularity and perfusion patterns.

Main Results:

• CBL typically presented as hemispherical tumors with hypoechoic solid components and "ring-shaped" hyperechoic margins.
• Internal echogenicity was predominantly homogeneous, with some cases showing cystic areas.
• CDFI showed heterogeneous vascularity, while CEUS revealed variable perfusion patterns, including rapid wash-in/wash-out in a significant proportion of cases.

Conclusions:

• CBL exhibit characteristic ultrasonographic features that are highly suggestive of the diagnosis.
• These findings provide valuable evidence for the clinical diagnosis and differential diagnosis of intraocular tumors, particularly CBL.