PMC7605917_01
An unusual and rare clinical manifestation of EC. Generalized multiple ECs on the right temple, chest, and back with a giant EC on the left gluteal region presenting as skin-colored nodules.
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Clinical examination of the lesions revealed painless skin-colored nodules on the right temple, chest, back, and gluteal regions with a central black punctum (Figure 1).
Histopathological findings (H&E staining, 20x and 100x). A cyst containing keratin and lined by wall of stratified squamous epithelium (red arrows).
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Histopathological examination of the three skin-colored nodules on the back revealed cysts containing keratin lined by wall composed of stratified squamous epithelia and the nuclei of epithelial cells were within normal limit (Figure 2).
Medical intervention of EC. (A) Conventional wide excision technique for the ECs on the back. (B-D). Minimal excision technique for the ECs on the chest and gluteal regions.
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Surgical excision was performed for the mass on the back (on the seventh day) (Figure 3A). Extirpation of cysts with conventional wide excision was performed for the mass on the upper left gluteal region (on the 48th day), chest (on the 55th day), and lower left gluteal region (on the 61st day) (Figure 3B-D) to produce less scarring for optimal cosmetic results.