ABSTRACT
Angiostrongylus costaricensis is the causative agent of abdominal angiostrongyliasis, a zoonotic infection that may produce severe eosinophilic enterocolitis or hepatitis in humans. Parasites are usually not released in stools and serology has an important role in diagnosis. Since cross-reactivity is demonstrated between A. costaricensis and another metastrongylid worm, A. cantonensis, we tested heterologous recombinant galectin as a probe in an immunochromatographic rapid diagnostic test (ICT-RDT) for detection of anti-A. costaricensis antibodies. Almost all (11/12) positive control sera from A. costaricensis infected patients were positive at ICT RDT. These are preliminary indications that r-galectin ICT-RDT is useful for diagnosing A. costaricensis infection.
Subject(s)
Humans , Animals , Strongylida Infections/diagnosis , Angiostrongylus cantonensis , Angiostrongylus , Immunologic Tests , ImmunoassayABSTRACT
As doenças hepatobiliares eosinofílicas são patologias raras de origem e de fatores etiológicos ainda não esclarecidos, sendo muitas vezes relacionadas à gastroenterite eosinofílica ou síndrome hipereosinofílica. Caracterizam-se por infiltração de eosinófilos em tecidos hepatobiliares e podem estar associadas à eosinofilia periférica na ausência de outras causas de eosinofilia. A raridade e conhecimento incompleto dessas doenças refletem na dificuldade de diagnóstico e de escolha terapêutica. O diagnóstico é feito através da exclusão de outras causas de eosinofilia periférica, tais como parasitoses, reações medicamentosas e doenças malignas, e também por análise histopatológica do tecido infiltrado. A maioria dos casos é responsiva ao tratamento com corticosteroides. Descrevemos dois casos clínicos, um de colecistite eosinofílica e outro de hepatite eosinofílica, avaliando, segundo revisão de literatura, a possibilidade de uma gastroenterite eosinofílica ou de uma síndrome hipereosinofílica em ambos os casos.
The eosinophilic hepatobiliary diseases are rare pathologies of origin and etiologic factors not yet clarified, being many times related to eosinophilic gastroenteritis or hipereosinophilic syndrome. They are characterized by an infiltration of eosinophils in hepatobiliary tissues and can be associated to peripheral eosinophilia, in the absence of other eosinophilia causes. The rareness and incomplete knowledge about these diseases reflect on the difficulty of diagnosis and choice of treatment. The diagnosis is made through exclusion of other causes of peripheral eosinofilia, such as parasitosis, drug reactions and malignant diseases, and also through histopathological analysis of the infiltrated tissue. Most cases respond to treatment with corticosteroids. We reported two cases, one of eosinophilic colecistitis and other of eosinophilic hepatitis, evaluating, according to literature review, the possibility of eosinophilic gastroenteritis or hipereosinophilic syndrome in both cases.
Subject(s)
Humans , Male , Adult , Aged, 80 and over , Cholecystitis , Eosinophilia , Hepatitis , Hypereosinophilic Syndrome , GastroenteritisABSTRACT
Human abdominal angiostrongyliasis is a zoonotic disease caused by ingestion of the L3 larvae of Angiostrongylus costaricensis. The human infection gives rise to a pathological condition characterized by acute abdominal pain, secondary to an inflammatory granulomatous reaction, marked eosinophilia and eosinophilic vasculitis. Most commonly this disease is limited to intestinal location, primary ileocecal, affecting the mesenteric arterial branches and intestinal walls. We present one of the few cases reported around the world with simultaneous involvement of the intestines and liver, including proved presence of nematodes inside the hepatic arteriole.
La enfermedad conocida como angiostrongiliasis abdominal humana es una zoonosis causada por la ingestión del estadio larval L3 de Angiostrongylus costaricensis. En el ser humano, esta infección provoca un estado patológico caracterizado por dolor abdominal agudo, secundario a una reacción inflamatoria granulomatosa; eosinofilia marcada y vasculitis eosinofílica. Comúnmente el cuadro se encuentra limitado a una localización intestinal, predominantemente ileocecal, que compromete las ramas de la arteria mesentérica y la pared intestinal. Presentamos uno de los pocos casos reportados alrededor del mundo con hallazgos simultáneos en intestino e hígado; se incluye la demostración histológica del nemátodo dentro de la arteriola hepática.