Since then, more than 100 cases of purulent abscesses in humans have been reported in different countries in the Americas.
He proposed that the finding of parasites in subcutaneous abscesses in humans from Trinidad was remarkable evidence that an animal, other than a human, could be the definitive host for this helminth. At that time, the digestive tract of a carnivore was suggested as the probable habitat for L. Leiper, 1909, a helminthologist at the London School of Tropical Medicine and Hygiene who received specimens of a Nematoda recovered from subcutaneous abscesses of 2 patients from Trinidad (off the coast of South America), was the first to describe Lagochilascaris minor. This paper summarizes the main features of the disease and its etiologic agent, including prevalence, life cycle, clinical course, and treatment.
Treatment is often palliative, with recurrence of lesions. Fatal cases have been described in which the parasite was found in the lungs or central nervous system. minor exhibits remarkable ability to migrate through the tissues of its hosts, destroying even bone tissue. Lagochilascariasis is mostly a chronic human disease that can persist for several years, in which the parasite burrows into the subcutaneous tissues of the neck, paranasal sinuses, and mastoid.
The natural definitive hosts of this parasite seem to be wild felines and canines. It is remarkable that the majority of cases of human lagochilascariasis in the Americas have been reported in Brazil. Lagochilascariasis is a parasitic disease caused by a helminth of the order Ascaroidea, genus Lagochilascaris that comprises 6 species, among which only Lagochilascaris minor Leiper, 1909, is implicated in the human form of the disease.
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