<prompt> Cherry red spot is seen in all exceptNiemann Pick DiseaseGM1 GangliosidosisTay Sachs diseaseGauchers disease  <response>: D i.e. Gauchers disease Cerry red spot at macula is seen in context of thickening and loss of transparency of retina at the posterior pole dt accumulation of lipid glycolphospho in ganglionic cell layer, giving the retina a white appearance. The fovea foveola, being the thinnest pa of retina and devoid of ganglionic eels, retains relative transparency, allowing persistent transmission of underlying highly vascular choroidal hue. It is commonly seen in CRAO, Niemann-Pick disease, generalized gangliosidosis GM1 gangliosidosis type 1, Tay-Sachs disease GMlgangliosidosis type 1, Sandoff-disease GM2 gangliosidosis type 2 and sialidosis type 1 and 2Q. 