The bony outgrowth from the terminal phalanx of the great toe—known as the subungual exostosis—is described and figured on p. 404.
subungual exostosis is an osteoma growing from the terminal phalanx of the great toe (Fig. 107).
subungual sub·un·gual (sŭb-ŭng'gwəl) or sub·un·gui·al (-gwē-əl)
Beneath a fingernail or toenail.
ungual un·gual (ŭng'gwəl)
Of or relating to fingernails or toenails.