关键词: 脉络膜疾病；血管瘤；超声检查；体层摄影术，X线计算机；磁共振成像；荧光血管造影

Abstract:

Objective    To evaluate the application of ultrasonography, CT and MRI in the diagnosis of choroidal hemangioma. Methods    11 choroidal hemangioma patients confirmed clinically were reviewed. All cases were examined by ultrasound and 2 received extra fundus fluorescein angiography (FFA). CT scan was performed in 1 case and MRI in 4 cases. Results    Ultrasound showed shuttle-or olive-shaped, strong echo mass (n=11), homogeneous (n=8) or inhomogeneous mass (n=3). 1 case, on enhanced CT images,  showed thickening on the posterior funder wall of the eyeball,  with equal density  and marked enhancement. On MRI T1WI (n=4), 3 cases presented  equal  signal intensity, but one revealed high intensity. On T2WI, all 4 cases presented high signal intensity with marked enhancement. In 2 cases that underwent FFA,  antral hyperfluorescence in the early arterial phase, fluorescence leakage at the venous phase and hyperfluorescence in the late tumor stage was found.  Conclusions    B-ultrasonography,enhanced CT and MRI can help reach the diagnosis and locate choroidal hemangioma. B-ultrasound (+FFA) shows advantage in early  diagnosis while MRI imaging features in the diagnosis and differentiation.

Key words: Choroid diseases； Hemangioma； Ultrasonography； Tomography, Xray computed； Magnetic resonance imaging； Fundus fluorescein angiography