The rectal biopsy as a diagnostic aid in atrophia retinae as part of a systemic disease.
D001284:Atrophy; D001706:Biopsy; D002493:Central Nervous System Diseases / Q000473:pathology*; D002554:Cerebrosides / Q000032:analysis*; D005128:Eye Diseases / Q000473:pathology*; D005732:Gangliosides / Q000032:analysis*; D006801:Humans; D008064:Lipidoses / Q000473:pathology*; D009197:Myenteric Plexus / Q000473:pathology*; D012007:Rectum / Q000473:pathology*; D012160:Retina; D013109:Sphingomyelins / Q000032:analysis*
D002554:Cerebrosides; D005732:Gangliosides; D013109:Sphingomyelins