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What is Fordyce disease most commonly effects and explain in detail?
FSs are ectopic sebaceous glands seen commonly on the lips (upper lip > lower lip), buccal, and genital mucosa. Infrequently, they can also be seen on oesophagus, uterine cervix, sole of the foot, and tongue. Histopathologically, a FS consists of a sebaceous lobule or gland located in the dermis. The Dermoscopy of FS on the penile shaft has been described and it shows vascular "garlands-like" aspect whose "bows" seem to wind around yellowish bunch-like lobules without crossing them iadvl textbook of dermatology