It seems to be generally ignored that Trichocephalus dispar, one of the intestinal parasites most common in man, is a parasite of pathologic importance. The majority of textbooks give few data concerning the pathologic changes which may be produced by this organism; some authors treat the matter as if it were not of importance, saying that the organism is harmless, without offering any proof for such an affirmation.
This lack of attention to Trichocephalus dispar is probably due to its frequent association with the hookworm, the study of which has been such an attractive theme in biology that any symptoms due to the former were accepted as a result of the latter.
My purpose is to call attention to the clinical importance of Trichocephalus dispar and to review the facts obtained by various workers, in the hope that this may lead to further study of this important human parasite.
FERNÁN-NÚÑEZ M. THE PATHOGENIC RôLE OF TRICHOCEPHALUS DISPAR (TRICHURIS TRICHIURA). Arch Intern Med (Chic). 1927;40(1):46-57. doi:10.1001/archinte.1927.00130070049004