feet plantar callus. swollen skin with rough, yellowing patch of lumpy

health callus medical skin podiatry dermatology healthcare illustration disease hygiene medicine care painful plantar pain foot vector wart bodycare spreading callous callosity closeup verruca keratoma plantaris virus sketch thickening anatomy body viral clavus surgery podology barefoot infection patient dispersal toe back feet swollen rough yellowing patch lumpy adhesive footwear result