Three cases of eruptive collagenoma and a literature review, 1970-2012.

Eruptive collagenoma is a rare dermatosis that is often misdiagnosed as other connective tissue nevi. To date, the literature on eruptive collagenoma is limited. Therefore we summarized and analyzed 27 cases from the world, including 3 cases from our hospital (two women aged respectively 40 and 12 years and a 40-year-old man with a 10-year, 1-month and 2-year history of multiple non-tender lesions), identified by searching PubMed and Chinese literature databases (1970-2012).The physical examination [...]