title: Cyst formation and cavitation in pulmonary metastases from Wilms' tumor. A report of two cases.
abstract: Two children with pulmonary metastases from Wilms' tumor are presented. In one case the lesions evolved into large cysts and in the other case cavitation occurred within two metastatic nodules. These are extremely rare complications of metastases from Wilms' tumor. The possible mechanisms are briefly discussed.
mesh_terms: D000293:Adolescent; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007680:Kidney Neoplasms / Q000000981:diagnostic imaging*; D008175:Lung Neoplasms / Q000000981:diagnostic imaging*; D008297:Male; D009362:Neoplasm Metastasis; D011859:Radiography; D009396:Wilms Tumor / Q000000981:diagnostic imaging*