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Ultrasonography of the elbow is a very helpful and reliable diagnostic procedure for a broad spectrum of rheumatic and orthopedic conditions, representing a possible substitute to magnetic resonance imaging for evaluation of soft tissues of the elbow. Musculoskeletal ultrasound (US) shows many advantages over other imaging modalities, probably the most important being its capability to perform a dynamic assessment of musculoskeletal elements with patient's partnership and observation during examination. In addition, ultrasonography is cost effective, easy available, and has excellent and multiplanar capability to visualize superficial soft tissue structures. Among all imaging procedures, US is highly accepted by patients. US assessment of the elbow requires good operator experience in the assessment of normal anatomy, and suitable high-quality equipment. US of the elbow provides detailed information including joint effusions, medial and lateral epicondylitis, tears of the distal biceps and triceps tendons, radial and ulnar collateral ligament tears, ulnar nerve entrapment, cubital or olecranon bursitis and intra-articular loose bodies. The aim of this paper is to review the screening technique and the basic normal and pathological findings in elbow US.

In the last years musculoskeletal ultrasound (US) has become a very useful imaging tool for the evaluation of rheumatic patients and a natural extension of the clinical examination of the ankle and foot. Musculoskeletal US allows the evaluation of the symptomatic and asymptomatic ankle and foot with a detailed analysis of a wide range of elementary lesions at the level of different anatomical structures and their distribution in early or long standing disease. In inflammatory pathology, it helps in the assessment of the disease activity and severity at the joint, tendon or entheseal level and in the detection of subclinical pathological features in early disease or residual activity after therapy. Moreover, US guided procedures allow accurate diagnostic and therapeutic interventions. It is a valuable imaging method that can be also used in the follow up of the treated patients (systemic and/ or local therapies or surgical procedures), being a patient friendly, non-invasive, and quick to perform method. The aim of this paper is to review the US technique of scanning and the indications of US in the analysis of the ankle and foot in rheumatic diseases.

Ultrasonography (US) is a helpful imaging tool in the evaluation of the musculoskeletal system. It has some advantages over the other imaging techniques, such as plain radiography, computed tomography and magnetic resonance imaging, represented by the non-invasiveness and multiplanar imaging capability, repeatability, lack of radiation burden, good patient acceptance, and relatively limited costs. US offers an excellent resolution and a possibility for real-time dynamic examination of the joints and surrounding soft tissues, as well as enables monitoring of therapeutic response. The most common clinical indications for US examination of the shoulder are rotator cuff and biceps tendon pathology (tenosynovitis, tendinosis, complete and partial tears, and impingement) and disorders of other soft-tissue structures (joint recesses, bursae, muscles, suprascapular and axillary nerves) as well as bony cortex abnormalities. US is very useful for US-guided procedures (biopsy, joint and bursae aspirations and injections, aspiration and dissolution of calcific tendinosis). The aim of this article is to analyze the current literature about US of the shoulder and to describe both normal and pathological findings.