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RETINOCYTOMA

Originally posted on @retina.rocks 07/20/2020

This patient presented with a retinocytoma of the right eye. The OCT line scan shows a disorganized, thickened retina. Typical intralesional calcification is noted. This calcium is highly reflective, causing shadowing of the underlying retina.

Clinically, retinocytomas can resemble astrocytic hamartomas. However, retinocytomas often have underlying RPE changes and chorioretinal scarring, which are not present in astrocytic hamartomas.

Learning Points:
Retinocytomas are fleshy, opalescent, benign tumors that are felt to be spontaneously regressed retinoblastoma (RB). They appear identical to previously radiated RB tumors.
Similar to typical RB, these patients’ offspring are at a 50% risk for developing RB and thus require genetic counseling.