[Value of ultrasonography in diagnosis and classification of Masson's tumor].

A retrospective analysis was performed on 11 cases of Masson's tumor admitted to Liaocheng People's Hospital from January 2010 to July 2021. Among them, there were 4 males and 7 females, aged from 14 to 62 years, with a medical history of 1 to 24 months. All of the patients complained of touching the mass under the skin. In this group, 9 cases were pure form, 1 case was mixed form and 1 case was extravascular form. Ultrasound imaging can reflect the characteristics of Masson's tumor to a certain extent, which has a certain value in the diagnosis, classification and differential diagnosis.

The role of ultrasonography in the diagnosis of persistent sciatic artery.

AIM: To investigate the accuracy of ultrasonography in the diagnosis of persistent sciatic artery (PSA) compared to computed tomography angiography (CTA). MATERIALS AND METHODS: From May 2002 to Dec 2018, 61 consecutive patients seen at Shandong Medical Imaging Research Institute with a clinical suspicion of PSA were included. Ultrasonography was used to assess the abdominal and lower-limb arteries. The main sonographic criteria for a positive diagnosis were the visualisation of PSA, the enlarged internal iliac artery, and abnormality of common femoral artery and superficial femoral artery. These data were compared with CTA findings. Kappa statistics was applied to determine the level of agreement. The sensitivity, specificity, positive and negative predictive values, accuracy, and Youden index of ultrasonography as a diagnostic method were assessed. RESULTS: Ultrasonography findings were positive in 16 of 61 patients with a clinical suspicion of PSA. The diagnosis was confirmed by CTA in 17 patients. There was one false-positive result and two false-negative results at ultrasonography. The kappa value was 0.875. The sensitivity, specificity, positive and negative predictive values, accuracy, and Youden index of ultrasonography were 88.2%, 97.7%, 93.8%, 95.6%, 95.1% and 0.859, respectively. CONCLUSIONS: Ultrasonography could be a reliable, accurate, and non-invasive diagnostic imaging method in the diagnosis of patients with suspected PSA.

The role of ultrasonography and MRI in patients with non-traumatic nerve fascicle torsion of the upper extremity.

AIM: To evaluate the role of ultrasonography and magnetic resonance imaging (MRI) in the diagnosis of non-traumatic nerve fascicle torsion of the upper extremity. MATERIALS AND METHODS: Eleven patients (unilateral upper extremity) who underwent surgical treatment for nerve fascicle torsion were included in the study. Ultrasonography and MRI showed the detailed anatomy of the region well enough to reveal nerve fascicle torsion. The characterization and classification (single-segmental or multi-segmental) based on ultrasonography and diffusion-weighted (DW) MRI findings were recorded. RESULTS: The hourglass-shaped appearance was a characteristic feature of nerve fascicle torsion, Characterization and classification based on ultrasonography and MRI findings were consistent with intraoperative findings. CONCLUSION: Ultrasonography and MRI may be valuable in the diagnosis of non-traumatic nerve fascicle torsion of the upper extremity.

The role of colour Doppler sonography in the diagnosis of lower limb Klippel-Trénaunay syndrome.

AIM: To investigate the accuracy of colour Doppler sonography as compared to phlebography in patients with Klippel-Trénaunay syndrome (KTS). MATERIALS AND METHODS: From September 2004 to May 2012, 59 consecutive patients seen in Shandong medical imaging research institute with a clinical suggestion of KTS were included. Thirty-four were female and 25 were male, with a mean age of 28.4 years. Colour Doppler sonography was used to assess the lower limb veins. The main sonographic criteria for a positive diagnosis were visualization of the lateral vein or sciatic vein, capillary haemangioma, and abnormality of the deep veins. These data were compared with phlebography findings. The κ statistic was used to determine the level of agreement. The sensitivity, specificity, positive and negative predictive values, and accuracy of colour Doppler sonography as a diagnostic test were assessed. RESULTS: Colour Doppler sonography findings were positive in 21 of 59 patients with a clinical suggestion of KTS. The diagnosis was confirmed using phlebography in 22 patients. There were two false-positive results and one false-negative result by colour Doppler sonography. The κ-value was 0.892. Sensitivity, specificity, positive and negative predictive values, and accuracy for colour Doppler sonography were 95.4, 94.6, 91.3, 97.2, and 94.9%, respectively. CONCLUSION: Colour Doppler sonography is an accurate, reliable, and non-invasive investigation in the assessment of patients with suspected KTS.