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Human pulmonary dirofilariasis

S Pampiglione1, F Rivasi, S Paolino

  • 1Cattedra di Parassitologia Veterinaria, Università di Bologna, Italy.

Histopathology
|July 1, 1996
PubMed
Summary
This summary is machine-generated.

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Two new cases of human pulmonary dirofilariasis were reported in Italy, caused by Dirofilaria repens. These parasitic lung infections mimicked lung cancer on initial diagnosis due to coin lesions.

Area of Science:

  • Medical Parasitology
  • Pulmonology
  • Radiology

Background:

  • Human pulmonary dirofilariasis is a rare parasitic infection caused by Dirofilaria species.
  • Cases are often misdiagnosed due to non-specific radiological findings.

Observation:

  • Two new cases in the Po valley, Italy, involved a 66-year-old woman and a 69-year-old man.
  • Parasites were identified as likely Dirofilaria repens, though preservation limited definitive species identification.
  • Coin lesions on chest X-rays led to initial misdiagnosis of lung cancer.

Findings:

  • Nematodes were found within a pulmonary artery in both patients.
  • This parasitic location resulted in small, roundish pulmonary infarcts.
  • The cases represent the 7th and 8th reported instances of human dirofilariasis in Italy.

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Implications:

  • Highlights the importance of considering parasitic infections in the differential diagnosis of pulmonary coin lesions.
  • Emphasizes the need for increased awareness of zoonotic diseases like dirofilariasis in endemic areas.
  • Suggests potential underreporting of pulmonary dirofilariasis due to diagnostic challenges.