... which the ossicles were deficient without causing any imperfection of hearing. Caldani mentions a case with the incus and malleus deficient, and Scarpa and Torreau quote instances of deficient ossicles. Thomka in 1895 reported a case of supernumerary tympanic ossicle, the nature of which was unknown, although it was neither an inflammatory product nor ... — Anomalies and Curiosities of Medicine • George M. Gould