Cutaneous mucinosis of infancy
Clinically, CMI presents as asymptomatic and variably sized skin-colored to erythematous papules and/or dermal plaques. They are most commonly found on the trunk and proximal extremities, and less frequently on the neck, hands, and digits.
As a subtype of localized lichen myxedematosus, CMI does not involve visceral organs. The disease course is variable and may be self-limited or progressive. CMI is typically not associated with rheumatologic disease, and the presence of thyroid disease and monoclonal gammopathy should be excluded.
L98.5 – Mucinosis of the skin
717259002 – Papular mucinosis of infancy
Differential Diagnosis & Pitfalls