A Lophomonas infection mimicking Angina: An extremely rare case report

Author:

Hadid Noura1,Ahmad Heya Ahmad1,Tawashi Kenana2,Al-Ghotani Basel3,Kassem Ali4,Assaf Amal1

Affiliation:

1. Damascus University

2. Damascus University, Albairouni university Hospital

3. Al-Mowasat University Hospital & Al- Assad University Hospital, Damascus University

4. Clinical biologist at Dar Al-Hekmah Hospital

Abstract

Abstract Background: Lophomonas is a non-aerobic protozoan parasite. This parasite has the ability to invade the respiratory tract. It presents with non-specific clinical manifestations. The gold standard for diagnosis is microscopic examination. The drug of choice for the treatment is Metronidazole. We report a rare case of Lophomonas infection that manifested with a dry cough and chest tightness, which was not reported in the medical literature previously. Case presentation: We report the case of a 45-year-old asian male who experienced episodes of chest tightness and cough. He showed elevated numbers of Eosinophils and IGE. A bronchoscopy was performed to investigate the presence of elevated Eosinophils in the bronchoalveolar lavage (BAL). The microscopic examination of BAL detected a parasite with flagella. The Giemsa staining procedure confirmed the diagnosis of Lophomonas. He was cured with Metronidazole. Now the patient is in good condition. Conclusions: Even if Lophomonas is a rare and unexpected diagnosis, we should keep it in mind as a probable cause in patients with unspecific manifestations and radiological and laboratory investigations. In addition, biosecurity procedures should be taken especially in endemic regions and workplaces.

Publisher

Research Square Platform LLC

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3. Fakhar M, Sharifpour A, Nakhaei M, Banimostafavi E, Ghasemi M, Abedian S. Lophomonas and lophomoniasis. Gorgan, Iran: Nourozi; 2021.

4. Retrospect and prospect of Lophomonas blattarum infections and lophomoniasis reported in China;Rao X;Open Access Libr J,2014

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