Human case of gastric infection by a fourth larval stage of Pseudoterranova decipiens (Nematoda, Anisakidae) Relato de parasitismo por nematódeo Anisakidae em homem

Only three cases of human infection by anisakid nematodes have been reported in Chile since 1976. In the present case, an anisakid worm, identified as a fourth-stage Pseudoterranova decipiens larva, was removed with a gastroendoscopic biopsy clipper from the stomach of a 45 year-old man from souther...

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Bibliographic Details
Main Authors: Rubén Mercado, Patricio Torres, Jorge Maira
Format: Article
Language:English
Published: Universidade de São Paulo 1997-04-01
Series:Revista de Saúde Pública
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0034-89101997000200012
Description
Summary:Only three cases of human infection by anisakid nematodes have been reported in Chile since 1976. In the present case, an anisakid worm, identified as a fourth-stage Pseudoterranova decipiens larva, was removed with a gastroendoscopic biopsy clipper from the stomach of a 45 year-old man from southern Chile. The patient, who presented acute epigastric pain and a continuous sensation of having an empty stomach, reported having eaten smoked fish. The worm was fixed in 70% ethanol and cleaned in lactophenol for morphological study. The morphometric characteristics of the worm are described and drawn. Anisakid larvae in fish flesh can be killed by freezing or cooking.<br>Un gusano anisákido identificado como larva del cuarto estadio de Pseudoterranova decipiens fue aislado mediante gastroendoscopio en el estómago de una persona de 45 años, residente en el sur de Chile. Se relató que el paciente presentó dolor epigástrico agudo y sensación de estómago vacío, siendo consumidor de pescado ahumado. El gusano fue fijado en etanol de 70% y diafanizado en lactofenol para su estudio morfológico.<br>Um anisakidio, identificado como larva do quarto estágio de Pseudoterranova decipiens, foi isolado por gastroendoscopia do estômago de uma pessoa de 45 anos de idade, residente no Sul do Chile. Relata-se que o paciente apresentou dor epigástrica aguda e sensação de estômago vazio, tendo ingerido peixe defumado. O nematode foi fixado em etanol 70% e diafanizado com lactofenol para estudo morfológico.
ISSN:0034-8910
1518-8787