1921
Volume 103, Issue 3
  • ISSN: 0002-9637
  • E-ISSN: 1476-1645
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Abstract

Abstract.

Gnathostomiasis is a helminthic infection caused by the third-stage larvae of nematodes of the genus . The life cycle in humans starts with an enteric phase, with the worm perforating the gastric or intestinal mucosa to reach the peritoneal cavity and migrating through the human body. Subsequent penetration through the diaphragm may produce pleuropulmonary symptoms. We herein present a previously healthy 56-year-old Thai man from Southern Thailand who was an ex-smoker presented with chronic dry cough progressing to hemoptysis after consuming grilled swamp eels and freshwater fish. Chest computed tomography showed consolidation at the lingular segment, and the differential diagnosis was primary lung cancer and pulmonary tuberculosis. The lung tissue biopsied during bronchoscopy displayed segments of organisms with the phenotypic characteristics of spp., and abundant eosinophils were seen in the alveolar tissue. infection was confirmed by a Western blot assay for –specific 24-kDa reactive band. The patient received albendazole, and a follow-up chest radiograph revealed improvement in the consolidation in the lung and reduction in hemoptysis. We report the first direct evidence including pathology and immunohistochemistry of invasion via the human lung, with clinical and radiographic presentations mimicking either malignancy or chronic infection.

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2020-06-22
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  • Received : 02 Apr 2020
  • Accepted : 26 May 2020
  • Published online : 22 Jun 2020
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