양성 난소종양에 대한 Real time 초음파상 분석 ( 제1보 ) = Real Time Ultrasonographic Study on the Benign Ovarian Tumors

다국어 초록 (Multilingual Abstract)

The authors studied ultrasonographic findings of 5O cases of benign ovarian tumor proven on postoperative histopathlogy. The size of tumor, diagnostic accuracy of the ultrasonography compared to histologic diagnosis, the sonographic features compared to histologic classification, the site of lesion, the ultrasonographic petterns by size, the ultrasonographic findings in cases of twisted ovarian cyst, the ultraso- nographic patterns by the size and the histologic classification, the ultrasonographic marginal demarcation and the correlation between ultrasonographic and microscopic findings were evaluated at the gynecologic ward in kyung Hee university hospital during one year and 3 months from Dec. 1981 through Feb, 1983. The results were as follows; 1. Common epithelial tumor was the largest with 11.4cm in mean diameter and dermoid cyst with 9.4cm in decreasing order. 2. The Diagnostic accuracy of ultrasonography compared to histologic diagnosis: Among 9 cases, 8 cases of dermoid cyst were diagnosed correctly by ultrasonography. The remained 41 cases couId be diagnosed as ovarian cyst, but the histologic diag- nosis by ultrasonography was impossible. 3. The ultrasonographic patterns were compared with histologic classification: 7 cases of mucinous cystadenoma revealed echolucency(7 cases), internal echogenicity (4 cases) and septation(5 cases), echolucency(9 cases) and internal echogenicity (2 cases) in 9 cases of serous cystadenoma, echolucency(3 cases) and internal echogenicity(2 cases) in 3 cases of endometriosis. Dermoid cysts showed echolucency (15 cases), internal echogenicity(13 cases), Septation(4 cases) and acoustic shado- wing(5 cases) in all 15 cases. other cysts revealed echolucency except 2 cases of septated simple cyst. 4. Among 50 cases. the site of lesion was same as surgical finding except 3 cases of large sized cyst(2 cases of serous cystadenoma and 1 case of dermoid cyst). 5.The sonographic echogenicity was not related to the size of lesion. 6. The cause of thickening of posterior wall in all 7 cases of ovarian cyst torsion was thought to be the edema of cystic wall. 7. The ultrasonographic patterns in relation to the size of tumor and the histologic classification: There were round to oval shapes in cases of less than lOcm in size. and elliptical(6 cases), spherical(1 cases) in cases of more than lOcm sized mucinous and serous cystadenoma, but generally dermoid cyste were round to oval shapes except 3 cases of spherical shape. 8. Among 50 cases of ovarian cyst, 39 cases showed clear marginal demarcation in sonography but 7 cases of dermoid cyst, 1 case of endometriosis and 1 case of simple cyst showed poor demarcation. 9. The correlation between ultrasonographic and microscopic findings: lnternal echogenicity mas seen in 13 cases of dermoid cyst filled wlth solid components, 6 cases of fluid, 4 cases of calcification, 4 cases of edema and 1 case of nodular mass. The echolucency was seen in the presence of much fluid filled in cyst, and the thickening of posterior wall in all 7 cases of ovarian cyst torsion was thought to be specific finding.