Tosi D, Sala F, Crosti C
Department of Anesthesia, Intensive Care and Dermatological Sciences, Università degli Studi di Milano, IRCCS Ca' Granda - Ospedale Maggiore Policlinico, Milan via Pace 9, Milan, 20122, Italy.
Indian J Dermatol. 2011 Mar;56(2):211-3. doi: 10.4103/0019-5154.80421.
Circumscribed palmar or plantar hypokeratosis is a rare benign epidermal malformation of the skin. Clinically it shows asymptomatic, well-circumscribed, and depressed erythema persisting for many years on the palms or soles. Its main histopathologic feature shows a characteristic epidermal depression with an abrupt decrement in the thickness of the stratum corneum, with a sharp stair between normal and involved skin. We describe a case of a 68-year-old woman who presented with an erythematous, asymptomatic, well-circumscribed, depressed patch, on the right thenar eminence which had been present for years.
局限性掌跖角化不全症是一种罕见的皮肤良性表皮畸形。临床上，它表现为手掌或足底出现无症状、边界清晰且凹陷的红斑，持续多年。其主要组织病理学特征为特征性的表皮凹陷，角质层厚度突然变薄，正常皮肤与受累皮肤之间有明显的阶梯状变化。我们报告一例68岁女性病例，其右手鱼际隆起处出现一个多年存在的红斑性、无症状、边界清晰的凹陷斑块。
