necrobiosis lipoidica https://github.com/monarch-initiative/mondo/issues/9285 https://rarediseases.info.nih.gov/diseases/13040/necrobiosis-lipoidica https://www.malacards.org/card/necrobiosis_lipoidica icd11.foundation:655608138 DOID:3486 NCIT:C34840 Orphanet:542592 MESH:D009335 MONDO:0006583 Wikipedia:Necrobiosis_lipoidica UMLS:C0027538 MEDGEN:45021 necrobiosis lipoidica diabeticorum (formerly) Necrobiosis lipoidica is a rare skin disorder of collagen degeneration. It is characterized by a rash that occurs on the lower legs. It is more common in women, and there are usually several spots. They are slightly raised shiny red-brown patches. The centers are often yellowish and may develop open sores that are slow to heal. Infections can occur but are uncommon. Some patients have itching, pain, or abnormal sensations. It usually occurs more often in people with diabetes, in people with a family history of diabetes or a tendency to get diabetes, but can occur in nondiabetic people. About 11% to 65% of patients with necrobiosis lipoidica also have diabetes, but the exact cause is still not known. Treatment is difficult. The disease is typically chronic with variable progression and scarring. GARD:0013040 EFO:1000738 SCTID:9418005 necrobiosis lipoidica dermis disorder