The filaria sanguinis hominis is a small worm of the nematode species, the ***** form of which lives in the lymphatics, and either the ***** 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.
In February, 1896, Henry of Philadelphia showed microscopic slides containing blood which was infested with numbers of living and active filaria embryos. The blood was taken from a colored woman at the Woman's Hospital, who developed hematochyluria after labor. Henry believed that the woman had contracted the disease during her residence in the Southern States.
Curran gives quite an exhaustive article on the disease called in olden times "eaten of worms,"--a most loathsome malady. Herod the Great, the Emperor Galerius, and Philip II of Spain perished from it. In speaking of the Emperor Galerius, Dean Milman, in his "History of Latin Christianity," says, "a deep and fetid ulcer preyed on the lower parts of his body and ate them away into a mass of living corruption." Gibbon, in his "Decline and Fall,"also says that "his (Galerius's) death was caused by a very painful and lingering disorder. His body, swelled by an intemperate course of life to an unwieldy corpulence, was covered with ulcers and devoured by immense swarms of those insects who have given their names to this most loathsome disease." It is also said that the African Vandal King, the Arian Huneric, died of the disease. Antiochus, surnamed the "Madman," was also afflicted with it; and Josephus makes mention of it as afflicting the body of Herod the Great. The so-called "King Pym" died of this "morbus pedicularis," but as prejudice and passion militated against him during his life and after his death, this fact is probably more rumor than verity. A case is spoken of by Curran, which was seen by an army-surgeon in a very aged woman in the remote parts of Ireland, and another in a female in a dissecting-room in Dublin. The tissues were permeated with lice which emerged through rents and fissures in the body.
Instances of the larvae of the estrus or the bot-fly in the skin are not uncommon. In this country Allen removed such larvae from the skin of the neck, head, and arm of a boy of twelve. Bethune, Delavigne, Howship, Jacobs, Jannuzzi and others, report similar cases. These flesh-flies are called creophilae, and the condition they produce is called myiosis. According to Osler, in parts of Central America, the eggs of a bot-fly, called the dermatobia, are not infrequently deposited in the skin, and produce a swelling very like the ordinary boil. Matas has described a case in which the estrus larvae were found in the gluteal region.
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, . . . which finally attacks the bones." Flies deposit their ova in the nasal discharges, and from their infection maggots eventually arise. In Sanskrit peenash signifies disease of the nose, and is the Indian term for the disease caused by the deposition of larvae in the nose. It is supposed to be more common in South America than in India.