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June 1983

Pulmonary Dirofilariasis and Transitional Cell Carcinoma: Benign Lung Nodules Mimicking Metastatic Malignant Neoplasms

Author Affiliations

From the Departments of Internal Medicine (Drs Kahn and Agger) and Pathology (Dr Wester), Gunderson Clinic Ltd, La Crosse, Wis.

Arch Intern Med. 1983;143(6):1259-1260. doi:10.1001/archinte.1983.00350060191033

• Pulmonary dirofilariasis occurred in a 79-year-old man with known transitional cell carcinoma. Bilateral lung nodules suggesting metastatic carcinoma were resected and subsequently identified as being caused by Dirofilaria immitis. The typical features of human dirofilarial infection are reviewed and contrasted with the unusual clinical findings in this patient.

(Arch Intern Med 1983;143:1259-1260)