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Related Experiment Videos

Human pulmonary dirofilariasis: a review

R Rodrigues-Silva1, H Moura, G Dreyer

  • 1Departamento de Helmintologia, IOC/FIOCRUZ, Rio de Janeiro, Brasil.

Revista Do Instituto De Medicina Tropical De Sao Paulo
|November 1, 1995
PubMed
Summary

Pulmonary dirofilariasis, a benign zoonotic disease caused by Dirofilaria immitis, is often underdiagnosed in Brazil. Early diagnosis is crucial to prevent misdiagnosis as cancer and avoid unnecessary surgery.

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Area of Science:

  • Veterinary Medicine
  • Parasitology
  • Public Health

Background:

  • Human pulmonary dirofilariasis is a zoonotic disease caused by Dirofilaria immitis.
  • It presents with symptoms mimicking neoplasia, leading to potential misdiagnosis and unnecessary surgery.
  • Brazil has conditions favorable for transmission, yet few cases are reported.

Purpose of the Study:

  • To summarize the geographical distribution, clinical, and pathological aspects of human pulmonary dirofilariasis.
  • To highlight the underdiagnosis of this parasitic infection in Brazil.
  • To emphasize the importance of differential diagnosis and improved diagnostic techniques.

Main Methods:

  • Literature review of 229 reported cases.
  • Analysis of clinical and pathological features.

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  • Discussion of diagnostic challenges and advancements.

    • Main Results:

    • Only 17 cases reported in Brazil despite favorable conditions.
    • Pulmonary dirofilariasis symptoms can be confused with lung cancer.
    • Solitary subpleural nodules ('coin lesions') require differential diagnosis.

    Conclusions:

    • Pulmonary dirofilariasis is likely underdiagnosed in Brazil.
    • Accurate diagnosis is essential to prevent unnecessary thoracic surgery.
    • Improved immunological diagnostic techniques are needed to determine the true prevalence.