Retinal Dystrophy and Microvillus Inclusion Disease, also known as rdmvid, is related to diarrhea 12, with microvillus atrophy. An important gene associated with Retinal Dystrophy and Microvillus Inclusion Disease is STX3 (Syntaxin 3). Affiliated tissues include retina, and related phenotypes are chronic diarrhea and severely reduced visual acuity