Aphthae

(af'-the). Also called Aphthous stomatitis. Small white ulcers, spots or vesicles of the mouth, chiefly occurring in children under three years of age, and generally a ociated with some febrile affection. It must not be confounded with thrush, in which disease the spots are smaller and are due to the presence of the parasitic fungus characteristic of that disease. A., Bednar's, two symmetrically placed ulcers seen on the hard palate of certain cachectic infants near the velum, one on either side of the mesial line. The prognosis is exceedingly grave. A., Cachectic, aphthae appearing beneath the tongue, and a ociated with grave constitutional symptoms; Riga's disease.