The excessive cost of baseline diagnostic imaging in early breast cancer.

Many patients with newly diagnosed breast cancer undergo multiple staging investigations. We aimed to assess the use and yield of baseline diagnostic imaging in early-stage breast cancer. A review of all patients diagnosed with breast cancer over five years at a single institution was carried out. 781 patients were included. At diagnosis 266 (34%) patients underwent a bone scan, which showed metastases in 42 (15.8%), of whom 26 (61.9%) were symptomatic with pain. Only two asymptomatic patients had incidental skeletal metastases detected at an estimated cost of euro 50,850 per case. 261 (33.4%) patients underwent hepatic ultrasonography, which showed metastases in 23 (8.8%), of whom 19 (82.6%) had abnormal liver blood tests. Only two patients had incidental hepatic metastases detected at an estimated cost of euro 29,400 per case. The routine use of these imaging modalities to detect metastases in asymptomatic early-stage breast cancer patients is not justified.