RGD uses the Human Disease Ontology (DO, https://disease-ontology.org/) for disease curation across species. RGD automatically downloads each new release of the ontology on a monthly basis. Some additional terms which are required for RGD's curation purposes but are not currently covered in the official version of DO have been added. As corresponding terms are added to DO, these custom terms are retired and the DO terms substituted in existing annotations and subsequently used for curation.
This neoplasm is a benign proliferation of mature smooth muscle. It can arise from the arrector pili muscle attached to hair follicles, the dartos muscle in the scrotum, the vascular smooth muscle, or the muscularis mammillae of the areolae. It is a sporadic condition that usually presents as a solitary lesion.
ClinVar Annotator: match by term: CONGENITAL SMOOTH MUSCLE HAMARTOMA WITH HEMIHYPERTROPHY, SOMATIC, MOSAIC | ClinVar Annotator: match by term: CONGENITAL SMOOTH MUSCLE HAMARTOMA, SOMATIC, MOSAIC