localized lichen myxedematosus self-healing papular mucinosis https://www.malacards.org/card/self_healing_papular_mucinosis Self-healing papular mucinosis is a rare form of localized lichen myxedematosus occurring primarily in children and characterized by the development of mucinous papules on various parts of the body (face, neck, trunk, and limbs) that resolve spontaneously within some weeks to months. Systemic symptoms can be observed such as fever, arthralgias and weakness. Orphanet:90397 UMLS:C0406657 GARD:0019141 MONDO:0019582 MEDGEN:590583