case_images: PMC10868711_01
case_images: Color fundus photography (A) and contrast-enhanced MRI (B, C) of circumscribed choroidal hemangioma before proton beam therapy.. Color fundus photography (A) showed retinal detachment from the optic disc to the macula  (arrows in A).. Contrast-enhanced MRI (B, C) showed extensive retinal detachment and 10x4 mm hemangioma in the left eye (arrows in B, C).
case_images: cureus-0016-00000052389-i01.jpg
case_images: PMC10868711_01_cureus-0016-00000052389-i01.jpg
case_images: FIG1
case_images: Clinical examination revealed central serous retinal detachment, and there could be some signs of the reddish color of the hemangioma, estimated to be 6 disc diameters under the detachment (Figure 1A). In addition, MRI revealed extensive retinal detachment in the left eye and 10 x 4 mm hemangioma with strong contrast enhancement with gadolinium at the base of the eyeball (Figure 1B, 1C).
case_images: Dose distribution map of proton beam therapy for circumscribed choroidal hemangioma. The images show axial (A), coronal (B), and sagittal (C) CT images. The clinical target volume was the hemangioma, and a setup margin of 2 mm was added to create a planning target volume.
case_images: cureus-0016-00000052389-i02.jpg
case_images: PMC10868711_01_cureus-0016-00000052389-i02.jpg
case_images: FIG2
case_images: The dose distribution map of proton beam therapy showed the dose to the right eye to almost zero (Figure 2).
case_images: Color fundus photography (A, D) and contrast-enhanced MRI (B, C, E, F) of circumscribed choroidal hemangioma after proton beam therapy. (A-C) One year after proton beam therapy. (D-F); Three years after proton beam therapy.. (A, D) Color fundus photography revealed that the retinal detachment had improved one year after proton beam therapy, but some remained (arrows in A). It disappeared three years after proton beam therapy.. (B, C, E, F) Contrast-enhanced MRI revealed gradual shrinkage of hemangioma over three years; however, a small lesion with contrast enhancement persisted (arrows in B, C, E, F).
case_images: cureus-0016-00000052389-i03.jpg
case_images: PMC10868711_01_cureus-0016-00000052389-i03.jpg
case_images: FIG3
case_images: As a result of color fundus photography, the retinal detachment in the left eye improved 1 year after proton beam therapy, and the retinal detachment disappeared 3 years later (Figure 3A, 3D). In addition, MRI showed gradual shrinkage of hemangioma over 3 years; however, a small lesion with contrast enhancement persisted but remained unchanged thereafter (Figure 3B-3C, 3E-3F).