Ultrasonography In Preoperative Diagnosis Research Articles

子宮,左卵巣および両側卵管の脱出した小児外鼠径ヘルニアの1例 : 術前診断における超音波検査の有用性

子宮,左卵巣および両側卵管の脱出した小児外鼠径ヘルニアの1例 : 術前診断における超音波検査の有用性

Predictive value of sonographic features in preoperative evaluation of medullary thyroid carcinoma

To summarize ultrasound features associated with medullary thyroid carcinoma (MTC) and investigate the predictive value of ultrasonography in preoperative diagnosis of MTC. The sonographic and clinical data were studied in a series of nodules histologically proven as MTC collected from January 1993 to January 2013. A total of 86 patients (92 nodules proven as MTC) were enrolled in the study with an average age of (47±12) years.Among the MTCs, 21.7%(20/92) were excluded because of missing data and the remained 78.3%(72/92) had complete data with the average diameter of (2.1±1.3) cm.The common US findings for MTC were solid, hypoechogenicity, regular sharp, well-defined margin, AP/ TR<1 and calcification (mostly microcalcification). Calcification and vascularization were more common in MTC nodules(48.6% vs 5.6%, P=0.001). Nodules with enlargement of cervical lymph node tended to be undergone FNAB(76.0% vs 55.3%, P=0.084), and ill-defined margin was more common in MTC nodules with cervical lymph node metastasis(36.4% vs 12.8%, P=0.009). Despite having a few US features closely linked to the malignant nodules such as solid, hypoechogenicity and with microcalcification, the MTC nodules also have specific US imaging characteristics as regular sharp, well-defined margin and AP/ TR<1.

Metastatic carcinoma to the thyroid gland from renal cell carcinoma: role of ultrasonography in preoperative diagnosis.

BackgroundPatients with metastases to the thyroid from renal cell carcinoma (RCC) that need surgical management are not many and unfamiliar to clinicians and thyroid endocrinologists. Therefore, little information is available on ultrasonographic features of metastatic carcinoma in the thyroid. The strategic value of ultrasound in preoperative surgical planning for patients with thyroid nodules has become increasingly appreciated. The purposes of this article are to clarify the ultrasound characteristics of metastatic carcinoma to the thyroid from RCC by evaluating many patients in one institute, and to investigate the role of ultrasonography in preoperative diagnosis.MethodsTen patients with these carcinomas who had undergone surgical management were investigated clinically and ultrasonographically. Ultrasonographic features to be evaluated were the form of involvement in the thyroid, size, shape, pattern, calcifications, vascularity, and tumor thrombus. Clinical features were previous history of RCC, serum thyroglobulin levels, cytology, preoperative diagnosis, and surgery.ResultsUltrasonographic features of these carcinomas were more likely to involve a solitary, irregular, and solid without calcifications, and prominent intra-tumoral vascularity and tumor thrombus in the vein. These patients tended to be older, and to have relatively late recurrence in the thyroid, RCC in the right kidney as the primary site, and relatively low serum thyroglobulin levels.ConclusionsMetastatic carcinomas to the thyroid from RCC presented highly characteristic features on ultrasonography. These ultrasonographic features combined with cytological findings and previous medical history of RCC can provide the optimal process for the preoperative diagnosis of such patients.

Hepatic hydatid disease in Libya.

A series of 50 patients with hepatic hydatid disease all treated at the Central Hospital, Tripoli, Libya is presented to show the advantage of ultrasonography in pre-operative diagnosis and the advantages of complete resection or omentoplasty compared with removal of the endocyst and drainage.

Hepatoscintigraphy, arteriography, and ultrasonography in preoperative diagnosis of choledochal cyst

A case of choledochal cyst in a 32-year-old female is reported. Information obtained from liver scintigraphy, angiography, and B-mode ultrasonography correlated well and resulted in a correct preoperative diagnosis.