Department of Dermatology, Hospital Universitario Rey Juan Carlos, Madrid, Spain.
Department of Dermatology, Hospital Universitario Puerta de Hierro, Madrid, Spain.
J Ultrasound. 2022 Dec;25(4):983-987. doi: 10.1007/s40477-021-00566-y. Epub 2022 Feb 7.
Talar callosity is an uncommon condition characterized by asymptomatic hyperkeratotic plaques located on the dorsum of one or both feet. We have detected an increased number of children presenting with this condition after the COVID-19 lockdown. High-frequency ultrasound was performed in all patients who consulted because of talar callosity. All four cases shared similar ultrasound findings: thickening of the epidermis with effacement of the subepidermal low-echogenic band and diffuse thickening of the dermis and subcutaneous cellular tissue, with a diffuse decrease in echogenicity. The bone cortex was respected in all cases. No increase in vascularization was detected. Although it is a benign condition, it is important to recognize talar callosity to exclude worse conditions and to prevent unnecessary biopsies. To our knowledge, we are the first to describe ultrasonographic findings of talar callosity.
跟骨胼胝是一种不常见的疾病，其特征为无症状性角化过度斑块，位于单或双脚的背侧。在 COVID-19 封锁之后，我们发现有更多的儿童出现这种情况。对所有因跟骨胼胝而就诊的患者均进行高频超声检查。所有 4 例均具有相似的超声表现：表皮增厚，皮下低回声带消失，真皮和皮下细胞组织弥漫性增厚，回声弥漫性降低。所有病例的骨皮质均正常。未发现血管增多。虽然这是一种良性疾病，但认识跟骨胼胝很重要，以排除更严重的情况并防止不必要的活检。据我们所知，我们是首次描述跟骨胼胝的超声表现。
