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양달모 대한영상의학회 1991 대한영상의학회지 Vol.27 No.6
Percutaneous abscess drainage was performed on 17 patients, who had postoperative complicated itrapericated intraperitoneal abscess under the guidance of ultrasound or CT over one year period. Sucessful drainage was obtained in 15 pts out of 17(88%). The average duration of the catheter drainage was 21 days. Successful drainage was obtained in one case which had a fistulous tract to the pancreatic duct. The drainage durations in this case was 65 days. Duration of catheter drainage did not correlate with initial amounts of pus. Our study suggests that percutaneous abscess drainage is an effective treatment in patients who have postoperative complicated intraperitoneal abscess.
양달모 대한영상의학회 1997 대한영상의학회지 Vol.37 No.5
Primary paraganglioma of the liver is a very rare disorder, and radiologic findings have not yet beendescribed. We report a case of this entity in which the US, CT, MRI and 131I-MIBG scan findings are described.
양달모 대한영상의학회 1996 대한영상의학회지 Vol.34 No.4
Purpose : To evaluate the US findings of epididymal adenomatoid tumor. Materials and Methods : We retrospectively reviewed US findings of four patients with histopathologically proven epididymal adenomatoid tumors. Lesions were evaluated for their size, location, margin, shape and echogenicity. Results : The size of the tumors ranged between 0.5cm and 2cm and all occurred on the left side of the epididymis. Of the four cases, three were located at the tail of the epididymis and one at its head. The tumors were well marginated and spherical and echo-texture was variable but homogenous. Conclusion : The possibility of an adenomatoid tumor should be considered when the epididymal mass is round and has a clear margin and the echo-texture of ultrasound is homogenous.
Ultrasonographic diagnosis of ovary-containing hernias of the canal of Nuck
양달모,김현철,김상원,임성직,박성진,임주원 대한초음파의학회 2014 ULTRASONOGRAPHY Vol.33 No.3
Purpose: The purpose of this study is to describe the ultrasonographic findings of ovarycontaininghernias of the canal of Nuck. Methods: This was a retrospective analysis of 22 hernia cases of the canal of Nuck. The followinggray scale and color Doppler ultrasonographic features were analyzed: the site and the size ofthe hernia, the texture of the hernia contents, and the presence or absence of blood flow in thehernia contents. Results: All of the patients had swelling of the right inguinal region (n=10), left inguinal region(n=8), or both (n=2). On ultrasonography, the hernias appeared as either solid masses (n=17)or solid masses containing cysts (n=5). The mean anteroposterior diameter of the hernia sac ofthe canal of Nuck was 9.1 mm (range, 5 to 18 mm). The mean anteroposterior diameters of thehernia sac were 11.6 mm (range, 7.6 to 18 mm) for hernias containing an ovary, and 8.3 mm(range, 5 to 13 mm) for hernias containing omental fat. During surgery, among the 17 cases withsolid-appearing hernia contents on ultrasonography, omental fat was identified in the hernia sacin four cases, but no structure was identified in 13 cases. All five cases that appeared as solidmasses containing cysts on ultrasonography contained ovary tissue in the hernia sac. Amongthe four cases of ovary-containing hernias, color Doppler ultrasonography identified blood flowwithin the ovary in three cases, but no flow signal was seen in one case of incarcerated hernia. Conclusion: Ultrasonography may be helpful for the diagnosis of ovary-containing hernias of thecanal of Nuck by detecting solid masses containing small cysts.
Groin abnormalities: ultrasonographic and clinical findings
양달모,김현철,김상원,원규연 대한초음파의학회 2020 ULTRASONOGRAPHY Vol.39 No.2
Groin lesions can be classified as neoplastic or non-neoplastic. Neoplastic lesions include lipoma, epidermoid cyst, angiomyofibroblastoma-like tumor, liposarcoma, and synovial sarcoma, as well as metastases from lymphoma, neuroendocrine carcinoma, and carcinomas of the lung, breast, urinary bladder, ovary, vulva, and colon. Non-neoplastic lesions include hernias, round ligament varices, endometriosis, Kimura disease, Castleman disease, hematoma, and inflammation. Because the clinical implications and therapeutic strategies for groin lesions vary depending on the cause, the ability to noninvasively differentiate among etiologies is very important. Although there is substantial overlap in ultrasonographic findings across various groin lesions, some ultrasonographic features, along with clinical characteristics, may suggest a specific diagnosis. Familiarity with the ultrasonographic and clinical features of various groin lesions facilitates accurate diagnosis and treatment.
양달모 대한영상의학회 1991 대한영상의학회지 Vol.27 No.1
We retrospectively reviewed the CT scans and angiograms of 17 cases with angiographically-proved moyamoya disease from April 1987 to October 1989. The results were as follows. 1. The age distribution ranged form 9 48. Eight patients were less than 20 years old. 2.Nine cases were male and 8 cases were female. 3. On postcontrast CT scan, curvilinear. tortuous vessels were well dilineated at the circle of willis and basal ganglia in 4 cases, and cortical enhancement in 7 cases. These findings are most likely to represent parenchymal and leptomeningeal collateral vessels on angiography. 4. On angiography, bilateral supraclinoid internal carotid artery(ICA), proximal middle cerebral artery(MI), and proximal anterior cerebral artery(AI) were involved in 13 cases. 5.The prognosis was poor in one case with bilateral ICA, MI, AI, and posterior cerebral artery(PCA) involvement. 6.One case had a pseudoaneurysm which was seen at the left anterior choroidal artery branch, and measured about 3x2mm in size. 7.One case was accompanied by a dural arteriovenous malformation(AVM).