Onychorrhexis is longitudinal ridging of the nail plate. Consider ageing, lichen planus, psoriasis, fungal nail infection and Darier disease or a habit of picking. A horizontal groove can be the …

Acquired ungual fibrokeratomas are uncommon fibrous tissue tumors that are located in the ungual area. They usually presents as asymptomatic, solitary, smooth, dome-shaped, or …

In carnivores, on the coronary border of distal phalanx is the ungual crest that is shelf covering the root of the claw (separated from it at the base by the ungual groove).

The distal phalanx is made up of a cone-shaped ungual process with a distinct collar called the ungual crest. The deep ungual groove distal to the crest provides attachment for the proximal …

May 23, 2018 · Tuberous sclerosis or tuberous sclerosis complex (TSC) is a genetic disorder that is characterised by hamartomas in many organs, but particularly the skin, brain, eye, kidney …

The distal phalanx is made up of a cone-shaped ungual process with a distinct collar called the 'ungual crest'. The deep ungual groove distal to the crest provides attachment for the proximal …

Ungual fibromas usually develop in adult life (Figure 121-5), with a reported frequency up to 88% (308). The lesions may be peri- or subungual and appear as dull red or flesh-colored papules …

Mar 25, 2025 · The medial groove remains on the medial surface, whereas the deeper and more defined lateral groove ends on the dorsal side of the ungual. The lateral surface of the ungual …

An ungual of the ground sloth Eremotherium. An ungual (from Latin unguis, i.e. nail) is a highly modified distal toe bone which ends in a hoof, claw, or nail. Elephants and ungulates have …

The ungual process in carnivores is the distal part of the distal phalanx. It is a compressed cone shielded by the horny claw. It is porous and has ridges on its proximal dorsal part that fade …