A 37-year-old female presented with orange irregular oval intraocular tumor at the posterior pole in the left eye as the color fundus shown. CT revealed an arc-shaped high radiodense lesion consistent with bone density at the posterior pole of eyeball (fig.1).

The choroid could be seen thickened significantly with clear sclero-choroidal junction at the tumor location corresponded to low or medium internal reflectivity in the ultra-wide B-scan image (fig.2 B-scan). Bruch membrane and RPE could be seen disrupted with hyperreflective osteoma tissue. Subretinal fluid could also be observed. SS-OCTA revealed flow signals referred to secondary CNV in the choriocapillaris layer (fig.2 OCTA).

A 400kHz speed full-range swept-source OCTA, Bmizar from TowardPi Medical, was used in this case which can provide ultra-widefield, excellent penetration to capture entire tumor with high-resolution details within 15 seconds.

Case courtesy of: Dr. Tongle Zhu, etc. team of Prof. Fen Wang, from the Second Affiliated Hospital of Guizhou Medical University
Editor: Dr. Chloe Li, TowardPi Medical