This article, titled "The punctum sign in epidermal cyst," discusses the clinical diagnosis of epidermal cysts, which are common skin growths. The typical presentation of an epidermal cyst is a slow-growing, firm nodule with a visible punctum. However, some patients may have a lump without an obvious punctum, leading to diagnostic uncertainty. The article suggests that applying gentle pressure to the cyst can accentuate the appearance of the punctum, aiding in the diagnosis. This technique helps distinguish epidermal cysts from other similar lesions. The article does not mention any funding sources, data availability, or conflicts of interest. [Extracted from the article]