Figure 6.

A-B, Contracting nodules proven malignant. A, A 73-year-old woman with brain mass found to have a 2.4-cm right upper lobe nodule, with very mild surrounding ground-glass. Biopsy was requested prior to inpatient neurosurgery. Four days later, the lesion decreased to 1.5 cm in size. Results of percutaneous core biopsy revealed invasive adenocarcinoma. The decrease in nodule size was attributed to the high-dose steroids administered for cerebral edema. B, An 85-year-old woman with multiple lung adenocarcinomas and a right lung subsolid nodule (2.2 × 1.7 cm) that contracted over 18 months (1.3 × 1 cm), as solid density increased.