Objective To study the ultrasonographic features of benign thyroid nodules that were misdiag -nosed as malignant nodules .Methods The thyroid ultrasonic examination results of 31 822 healthy people who visited the Department of Health Management , Peking Union Medical College Hospital from January 2011 to De-cember 2014 were analyzed .Fine needle aspiration or surgical resection were performed in those highly suspected as malignant nodules according to some specific ultrasonographic features .Results A total of 162 nodules were suspected malignant in ultrasonography , among which 33 ( 20.37%) were benign based on pathologic results , primarily nodular goiter with calcinosis/fibrosis (12, 36.36%).Microcalcification (20), irregular boundary of the nodules (9), a taller-than-wide shape (6), and abundant and abnormal blood flow (6) were the most common ultrasonographic signs in turn in those misdiagnosed nodules .Conclusions Ultrasonography is the diag-nostic technique of choice for thyroid nodules .Accurate interpretation of the ultrasonographic features of thyroid nodules can improve the accuracy of diagnosis and facilitate the decision in surgery .

Objective To observe the patients after transvaginal mesh(TVM)implantation surgery by using transperineal ultrasound(TPUS),compare the diagnosis of pelvic organ prolapse(POP)by TPUS and clinical examination[according to the Pelvic Organ Prolapse Quantification(POP-Q)system published by the International Continence Society],and to explore the role of ultrasound in postoperative evaluation as well as the high-risk factors of post-surgery POP recurrence. Methods This is a retrospective study based on the POP-Q records and TPUS data sets of patients within 6 months after TVM surgery during September 2013 and November 2019.The diagnostic results of TPUS and POP-Q were compared.The incidences of hiatal ballooning and levator avulsion were separately compared between the TPUS group and the control group. Results A total of 147 patients were enrolled.The Kappa values between TPUS and POP-Q in the diagnosis of anterior and posterior compartment POP were 0.268(
Humans ; Pelvic Floor/diagnostic imaging* ; Pelvic Organ Prolapse/diagnostic imaging* ; Retrospective Studies ; Surgical Mesh/adverse effects* ; Ultrasonography