title: Cutaneous Mucinosis of Infancy: A Rare Congenital Case with Coexisting Progressive, Eruptive, and Spontaneously Involuting Lesions.
abstract: Cutaneous mucinosis in infancy is rare. We report an infant with multiple congenital papules distributed over the trunk, neck, and extremities. These papules were mainly dispersed, but they also coalesced into plaques. Histopathologic findings showed features of cutaneous mucinosis of infancy (CMI). Over 2 years of follow-up, we observed that the preexisting lesions on the lower back and left trunk progressively increased in size, and a few new scattered papules continued to appear, mainly on the trunk; several lesions spontaneously resolved with no further complications. CMI is considered to be a persistent cutaneous disorder, even though spontaneously regressing cases have rarely been reported. This case demonstrates the broad clinical spectrum of CMI, with progressive, eruptive, and spontaneously involuting lesions all present in the same patient. This condition should be considered in the differential diagnosis of congenital or infantile-onset papules and plaques, especially those yellowish in color.
authors.affiliation: Department of Dermatology, Hospital Sant Joan de Déu, University of Barcelona, Barcelona, Spain.
authors.forename: José M
authors.initials: JM
authors.lastname: Mir-Bonafé
authors.affiliation: Department of Dermatology, Hospital Sant Joan de Déu, University of Barcelona, Barcelona, Spain.
authors.forename: Asunción
authors.initials: A
authors.lastname: Vicente-Villa
authors.affiliation: Department of Pathology, Hospital Sant Joan de Déu, University of Barcelona, Barcelona, Spain.
authors.forename: Mariona
authors.initials: M
authors.lastname: Suñol
authors.affiliation: Department of Dermatology, Hospital Universitari Arnau de Vilanova, University of Lleida, Lleida, Spain.
authors.forename: Xavier
authors.initials: X
authors.lastname: Soria
authors.affiliation: Department of Dermatology, Hospital Sant Joan de Déu, University of Barcelona, Barcelona, Spain.
authors.forename: María Antonia
authors.initials: MA
authors.lastname: González-Enseñat
mesh_terms: D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D007223:Infant; D017520:Mucinoses / Q000151:congenital / Q000175:diagnosis*; D012867:Skin / Q000473:pathology; D012871:Skin Diseases / Q000151:congenital / Q000175:diagnosis*