Unusual Manifestations of Familial Juvenile Colloid Milium in Two Siblings

Juvenile colloid milium is an extremely rare degenerative dermatosis of the dermal connective tissue manifesting before puberty. This chronic skin condition, detected primarily in sun-exposed areas, is clinically characterized by the development of translucent, yellowish papules and plaques containing gelatinous material and by the presence of eosinophilic, fissured material in the papillary dermis. We present two cases of juvenile colloid milium, in a 13-year-old girl and her 10-year-old brother; the condition emerged in both at approximately 6 years of age and progressively worsened. They both presented with multiple yellowish, translucent, firm, flat papules and plaques mainly over the face on the cheeks and on the perioral and periocular areas in a unique linear pattern.