“…Nevus anelasticus is described as “perifollicular papules” and papular elastorrhexis consists of multiple, acquired, 2‐5 mm, flat, firm, painless, oval‐shaped papules; like eruptive collagenoma, these two conditions are acquired most often in childhood and adolescence and affect the upper part of the body (torso and upper extremities). Ryder and Antaya and Lee and Sung compare these three conditions, and conclude that “nevus anelasticus, papular elastorrhexis, and eruptive collagenoma are the same entity.” Other authors have also proposed that eruptive collagenoma and papular elastorrhexis are one and the same condition. Lesions resembling eruptive collagenoma both clinically and histopathologically, but arising on the neck in older individuals, have been labeled as “white fibrous papulosis of the neck.” The relationship between this condition and EC is unclear.…”