A detailed understanding of the intricacies of the distal radius fracture is necessary for the radiologist to provide a clinically relevant description.

A variety of surgical procedures exist for repair of both traumatic and degenerative osseous and soft-tissue pathologic conditions involving the foot and ankle. It is necessary for the radiologist to be familiar with these surgical procedures, so as to assess structural integrity, evaluate for complicating features, and avoid diagnostic pitfalls. Adequate interpretation of postoperative changes often requires access to surgical documentation to evaluate not only the surgery itself but the expected timeline for resolution of normal postoperative changes versus progressive disease. Appropriate use of surgical language in radiology reports is another important skill set to hone and is instrumental in providing a high-quality report to the referring surgeons. The pathophysiology of a myriad of surgical complaints, beginning from the Achilles tendon and concluding at the plantar plate, are presented, as are their common appearances at computed tomography and magnetic resonance imaging. Commonly encountered entities include Achilles tendon tear, spastic equinus, nonspastic equinus, talar dome osteochondral defect, tarsal tunnel syndrome, plantar fasciitis, pes planovalgus, pes cavovarus, peroneal tendinosis, lateral ligament complex pathology, Morton neuroma, plantar plate tear, and metatarsophalangeal joint instability. Computer-generated three-dimensional models are included with many of the procedures to provide a more global view of the surgical anatomy. Correlation with intraoperative photographs is made when available. When appropriate, discussion of postoperative complications, including entities such as infection and failure of graft integration, is presented, although a comprehensive review of postoperative complications is beyond the scope of this article. Notably absent from the current review are some common foot and ankle procedures including hallux valgus and hammertoe corrections, as these are more often evaluated radiographically than with cross-sectional imaging. RSNA, 2016.

Echinococcus granulosus, which causes cystic echinococcosis, is an uncommon condition in the United States. We report a case of a 78-year-old Caucasian female who presented to her primary care physician in 1999 with right upper quadrant pain. She had a history of frequent foreign travel. Abdominal imaging demonstrated a 12.5-cm hepatic cyst. The cyst was drained and the pathology report on the fluid indicated no bacterial, parasitic, or malignant etiology. Serology tests for Entamoeba and Echinococcus antibodies were negative. The patient underwent multiple hepatic cyst aspirations until 2008 for recurring symptoms. In 2008, abdominal imaging demonstrated solid internal components within the cyst. Repeat Echinococcus antibodies ordered were abnormally elevated. Cyst aspiration demonstrated Echinococcus protoscolex. We report this case to discuss the diagnosis and management of hydatid cyst and to emphasize that with increasing globalization, physicians must maintain a high index of clinical suspicion for parasitic etiologies in patients with hepatic cysts.

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