Two Cases of Tricho-Epitheliomata with a “Rodent” Lesion

Bacteriology (Dr. L. P. Garrod). Films show numerous bacteria of three principal types, small Gram-positive cocci, short Gram-negative bacilli, and fusiform Gram-negative bacilli. Cultures yield a growth of Streptococcus salivarius and Pfeiffer's bacillus. Dr. Garrod concludes that the bacteriology of this material suggests infection from the mouth or pharynx. The child's paternal grandfather is said to have similar, though larger, depressions in the same position on both ears, but these have occasioned no inconvenience.