[Growth rate of pulmonary metastases (author's transl)]

The growth of 148 untreated metastases to the lung was determined in 47 patients. Pulmonary metastases of squamous-cell carcinomas, sarcomas and malignant melanomas exhibited exponential growth, the doubling times were distributed log-normally, the geometric mean amounted to six weeks. The growth rate of adenocarcinomas decreased with increasing tumor size approximately in accordance with a Gompertzian function.