Finlayson of Glasgow has recently reported an interesting case in
a physician who, after protracted constipation and pain in the
back and sides, passed large numbers of the larvae of the
flower-fly, anthomyia canicularis, and there are other instances
of myiosis interna from swallowing the larvae of the common
house-fly.
There are forms of nasal disorder caused by larvae, which some
native surgeons in India regard as a chronic and malignant
ulceration of the mucous membranes of the nose and adjacent
sinuses in the debilitated and the scrofulous. Worms lodging in
the cribriform plate of the ethmoid feed on the soft tissues of
that region. Eventually their ravages destroy the olfactory
nerves, with subsequent loss of the sense of smell, and they
finally eat away the bridge of the nose. The head of the victim
droops, and he complains of crawling of worms in the interior of
the nose. The eyelids swell so that the patient cannot see, and a
deformity arises which exceeds that produced by syphilis. Lyons
says that it is one of the most loathsome diseases that comes
under the observation of medical men. He describes the disease as
"essentially a scrofulous inflammation of the Schneiderian
membrane, .
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