F. Lopez-rios et al., Squamous cell carcinoma arising in a cutaneous epidermal cyst - Case report and literature review, AM J DERMAT, 21(2), 1999, pp. 174-177
Although cutaneous epidermal (infundibular) cysts are extremely common lesi
ons, neoplastic transformation of their epithelium is quite rare. We descri
be a patient with a squamous cell carcinoma arising in the wall of an other
wise conventional epidermal cyst. In addition, we review the literature con
cluding that most of the previously reported cases may not correspond to th
is rare occurrence.