Idiopathic sclerochoroidal calcification

Background Idiopathic sclerochoroidal calcification (ISC) is an unusual, be nign disorder occuring at the level of the posterior choroidea and sclera. Clinical differential diagnosis includes choroidal osteoma, choroidal metas tasis, choroidal melanoma, choroidal amelanotic naevus and choroiditis. Patient A 61-year old man was referred with the diagnosis of multifocal cho roidal tumor in both eyes. Fundoscopy showed bilateral yellow lesions locat ed near the superotemporal arcade. Results Fluorescein angiography shows the late staining of the choroidal le sions. Ultrasonographically highly reflective lesions (sclerochoroidal plac oid lesions at the sclero-choroidal interface in the CT) confirms the clini cal diagnosis. The serum calcium and phosphate metabolism is normal. Conclusion The Idiopathic Sclerochoroidal Calcification (ISC) is a rare ech ographical differential diagnosis to the choroidal osteoma. ISC is a hetero topic calcification of the posterior pole in both eyes, usually located nea r the superotemporal arcade.