1,721,039 research outputs found
Rupture of the sheath of the extensor carpi ulnaris tendon in a patient affected by rheumatoid arthritis
No full textIntersection syndrome: ultrasound imaging
No full textObjective: To evaluate the use of ultrasound for the diagnosis of intersection syndrome. Materials and methods: A total of 1,131 reports from hand and wrist ultrasound examinations performed between 1 January 2008 and 31 December 2012 were re-evaluated. Two hundred and fifteen video clips present in the electronic database were reviewed by two musculoskeletal radiologists with 20 years of experience. Results: Of the 215 video clips reviewed, 21 patients were diagnosed with intersection syndrome. The mean age was 45 years (ranging from 22 to 60); 15 were male (13 with proximal intersection syndrome, 2 with distal intersection syndrome) and 6 female (5 with proximal intersection syndrome, 1 with distal intersection syndrome). Conclusion: Intersection syndrome was identified in 1.9 % of all patients evaluated in the setting of a specialized hospital. Ultrasound is a non-invasive, simple, and economical method for the identification of intersection syndrome, tendon sheath anatomy (individual or separate sheaths) and to exclude other pathological conditions. © 2013 ISS
Importance of the ultrasound in cubital tunnel syndrome
No full textWe report a case of a patient with cubital tunnel syndrome caused by presence of a non-thrombotic vein in the cubital tunnel. Cubital tunnel syndrome is a symptom complex caused by the compression of the ulnar nerve at the elbow. It is the second most common peripheral compression neuropathy. Ulnar compression at the elbow can be clinically diagnosed; however, an electroneurographic examination is necessary to confirm the diagnosis. Sonography and MRI may be required to locate nerve lesions, but primarily to evaluate the causes of compression. We decided to report this case because it shows the importance of the ultrasound in the diagnosis of the cause of compressions, including those rare and unexpected
Soleus strain: an underestimated injury?
No full textThe medial gastrocnemius is the most commonly injured muscle in the calf, and while traumatic lesions of the medial gastrocnemius are frequently described in the medical literature and clinical and sonographic diagnoses are easy, those of the soleus are less easily recognisable clinically or by sonography. We present a case of traumatic lesions of the medial gastrocnemius, diagnosed clinically and with ultrasound, while MRI also detected two lesions of the soleus. The case presented and the review of the literature highlight how clinical and ultrasound examinations can lead to misunderstandings about traumatic injury to the soleus
Ultrasound findings in subcutaneous plantar vein thrombosis: retrospective analysis of seven patients
No full textBackground Several disorders may result in forefoot pain. An uncommon cause of forefoot pain is subcutaneous plantar veins thrombosis (SCPVT) involving veins superficial to the plantar fascia. Purpose To describe the ultrasound (US) appearance of SCPVT, which has been described only once in the radiological literature. Material and Methods We performed a retrospective search of our PACS system from 2016 to 2020 to collect all cases of US-diagnosed SCPVT. We collected data on seven patients. Two radiologists analyzed the US images retrieved. All US examinations were performed with a multifrequency linear probe (frequencies in the range of 5-17 MHz). Results A localized plantar nodule was palpable in 86% of patients. The subcutaneous thrombosed vein appeared in all patients as a round or ovoid nodule located in the subcutaneous tissues that corresponded in four patients (4/5, 80%) to the painful palpable nodule. The size was in the range of 4-7 mm (mean = 5.4 mm). The thrombosed vein presented a connection with adjacent patent veins, appeared enlarged, and almost filled with hypo-isoechoic material, and in two patients (2/7, 29%), a thin peripheral fluid component surrounding the thrombus was detectable. Continuous scanning demonstrated slow blood movements inside the peripheral component due to blood circulation. Failure to compress the lumen of the thrombosed vein during the real-time US was evident in all patients. Conclusion SCPVT is a rare or underreported condition. Sonologists must know the US appearance of SCPVT to exclude other conditions and avoid unnecessary invasive studies
An antecubital fossa "cyst" caused by postoperative kinking of the brachial artery
No full textA 77-year-old woman was referred to our staff for evaluation of a "cystic" mass in the antecubital fossa. The recent medical history included surgical excision of a median-nerve schwannoma. The postoperative course had been uneventful. The sonographic examination revealed kinking of the brachial artery; color Doppler imaging showed aliasing at the level of the kink. The case illustrates the value of ultrasound in the diagnosis of fluid-filled lesions of the elbow, including those that are rare and unexpected © 2013 Società Italiana di Ultrasonologia in Medicina e Biologia (SIUMB)
Absence of elevation of fibular tendons during dorsal hyperflexion of the foot: a sign of loss of the calcaneofibular ligament
No full textRole of color-Doppler US in the evaluation of scrotal edema
No full textUltrasound (US) examination in combination with color-Doppler US is the imaging modality of choice for evaluating the scrotum. Scrotal conditions are generally divided into testicular and extratesticular disorders; the latter may affect the epididymis, the spermatic cord, the tunica vaginalis, the skin and the subcutaneous tissue. The embryology of the scrotal contents is complex and has a number of anatomical and clinical consequences. We present the case of a patient with extraosseous Ewing's sarcoma of the thigh and ipsilateral scrotal swelling caused by lymphatic edema secondary to inguinal lymph node involvement. US combined with color-Doppler allowed differentiation between lymphoma or neoplastic involvement and lymphedema or vascular edema. If the US operator is thoroughly familiar with the scrotal lymphatic and vascular system, US imaging can help identify the pathogenesis of the edema and provide the clinicians and surgeons with important information. © 2013 Società Italiana di Ultrasonologia in Medicina e Biologia (SIUMB)
Quantitative elastosonography of the myotendinous junction normal behavior and correlation with a standard measurement system during functional tests
No full textAbstract
OBJECTIVES:
In recent years, an increasing need to use imaging to assess normal and adaptive muscle function, in addition to its anatomy and structure, has emerged. We evaluated the myotendinous junction's elastosonographic behavior in light of the most recent literature on its physiologic behavior. The elastosonographic studies were compared with the results obtained from a standard measurement system to ensure a correlation with maximal muscle contraction.
METHODS:
Nineteen male professional soccer players were assessed during functional tests. The participants performed 5 repetitions at 60°/s to assess muscle strength and 3 repetitions at 30°/s to assess the maximum force peak of thigh muscles. The participants were monitored by a strength-power measurement system and an ultrasound machine equipped with multifrequency (18-6-MHz) linear array transducers.
RESULTS:
The 19 soccer players were aged between 19 and 34 years (mean age, 28 years). For the right rectus femoris, the results of the elastosonographic studies showed a mean elasticity value ± SD of 30.75% ± 10.05% with the muscle relaxed and a value of 13.75% ± 8.44% during contraction (mean decrease, 17.00% ± 11.71%). Elasticity values were 36.48% ± 8.39% before contraction and 8.77% ± 6.55% during contraction of the left rectus femoris muscle (mean decrease, 27.71% ± 11.95%). For 30° eccentric contraction of the left leg, correlation with the standard measurement system showed Pearson r values of -0.53 and -0.51 when comparing force peak and mean work, respectively, with elasticity values.
CONCLUSIONS:
Our study shows that strain elastosonographic quantification of muscle elasticity seems to match the expected physiologic and biomechanical behavior of the myotendinous junction
Ultrasonography of the ulnar nerve in the elbow: video article
No full textDisorders affecting the ulnar nerve in the elbow are common in clinical practice. The diagnosis is based on clinical evaluation and electrodiagnostic tests, but imaging examinations are frequently necessary, particularly for the identification of the structures associated with nerve compression. The purpose of this video article is to review the anatomy, the pathology, scanning techniques, and sonographic appearance of the ulnar nerve in the elbow
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