a Castro and Vidal speak of worms in
the aorta. Rake reports a case of sudden death from round-worm;
and Brown has noted a similar instance.
The echinococcus is a tiny cestode which is the factor in the
production of the well-known hydatid cysts which may be found in
any part of the body. Delafield and Prudden report the only
instance of multilocular echinococcus seen in this country. Their
patient was a German who had been in this country five years.
There are only about 100 of these cases on record, most of them
being in Bavaria and Switzerland.
The filaria sanguinis hominis is a small worm of the nematode
species, the adult form of which lives in the lymphatics, and
either the adult or the prematurely discharged ova (Manson) block
the lymph-channels, producing the conditions of hematochyluria,
elephantiasis, and lymph-scrotum. The Dracunculus medinensis or
Guinea-worm is a widely-spread parasite in parts of Africa and
the West Indies. According to Osler several cases have occurred
in the United States. Jarvis reports a case in a post-chaplain
who had lived at Fortress Monroe, Va., for thirty years. Van
Harlingen's patient, a man of forty-seven, had never lived out of
Philadelphia, so that the worm must be included among the
parasites infesting this country.
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