Magnetic resonance-guided focused ultrasound (MRgFUS) is a new treatment modality in treating uterine fibroid. It is noninvasive and can be done as out-patient procedure. It is the least invasive treatment option other than medical treatment. Early reports have demonstrated feasibility and safety. It is efficacious in symptom improve and fibroid volume reduction. This article reviews the principle, patient selection and treatment. Results from early trial and our center are summarized.

The rib is an uncommon site of osteosarcoma. With the use of adjuvant chemotherapy and aggressive surgical resection of the metastatic pulmonary lesions, extrapulmonary metastases are becoming more clinically evident. Primary rib osteosarcoma with extrapulmonary metastasis is exceedingly rare. A case is reported, showing that the pattern of metastasis of rib osteosarcoma is similar to that of primary bone osteosarcoma. The liver metastasis occurred after resection of the metastatic pulmonary lesions. A CT scan of the primary rib lesion and liver metastasis both showed a lace-like enhancement pattern, its histological appearance corresponding with neoplastic osteoid. With the increasing use of CT abdomen for localization of extrapulmonary metastases, lace-like enhancement may be seen more readily in the future.