title: Scanning electron microscopy of retinoblastoma.
abstract: Two cases of the so-called undifferentiated retinoblastoma are demonstrated where typical rosettes were absent. However, cell groups resembling rosettes existed. Scanning electron microscopy revealed a tendency of the cells to arrange in circles or in garland-like formations. In one of the cases lymphocytes were found and in the other photoreceptor elements and tubuloreticular inclusions within the endothelial cells were seen.
mesh_terms: D004727:Endothelium / Q000473:pathology / Q000648:ultrastructure; D005123:Eye / Q000166:cytology; D005134:Eye Neoplasms / Q000473:pathology* / Q000648:ultrastructure; D005260:Female; D006801:Humans; D002479:Inclusion Bodies / Q000648:ultrastructure; D007223:Infant; D008297:Male; D008855:Microscopy, Electron, Scanning; D012175:Retinoblastoma / Q000473:pathology* / Q000648:ultrastructure