No abstract available.
Pancreatic Pseudocyst*

No abstract available.
Hernia, Diaphragmatic* ; Stomach Volvulus*

No abstract available.
Cisterna Magna*

Background/Aims: Colon transit time (CTT) test is regarded as the gold standard for evaluating colon transit function. Fluoroscopic defecography (FD) is a dynamic radiologic test to assess anorectal function. The aim is to evaluate the value of FD in constipated children with abnormal CTT test results. Methods: Fifty-one children (27 girls) with a mean age of 9.8 ± 3.2 years who met Rome III criteria for constipation and older than 5 years with abnormal CTT test results underwent FD. Results: Of 51 children, 27 (52.9%) showed positive findings on FD, including pelvic floor dyssynergia (PFD) (10/27, 37.0%), structural abnormality (15/27, 55.6%) (rectocele 53.3%, intussusception 33.3%, and both 13.4%), and both PFD and rectocele (2/27, 7.4%). In terms of CTT test subtype, of 35 children who had outlet obstruction type in CTT test, 19 (54.2%) had positive findings, including PFD (8/19, 42.1%), structural abnormality (9/19, 47.4%) (rectocele 55.6%, intussusception 22.2%, and both 22.2%), and both PFD and rectocele (2/19, 10.5%). Of the 16 children who had slow transit type of CTT test, 8 (50.0%) had positive findings, including PFD (2/8, 25.0%) and structural abnormality (6/8, 75.0%). Of the 6 children who had structural abnormality, 3 (50.0%) had rectocele and 3 (50.0%) had intussusception. For the 2 children (2/16, 12.5%) who had PFD, puborectalis muscle relax failure was found on FD. Puborectalis muscle relax failure was treated with biofeedback and medication. In the minor abnormalities, medication continued without additional therapeutic modalities. Conclusions FD was valuable for both diagnoses of underlying causes and interpretation of CTT test results in children with abnormal CTT test results. Therefore, this study suggests that FD and CTT tests should be incorporated into logical thinking for constipation in children.

PURPOSE: To know the differences of proton MR spectroscopic features between recurrent rectal cancer and fibrosis in post-operative period, and to evaluate the possibility to discriminate recurrent rectal cancer from post-operative fibrosis by analysis of proton MR spectra. MATERIALS AND METHODS: We evaluated the proton MR spectra from 25 soft tissue masses in perirectal area that developed in post-operative period after operation for the resection of rectal cancer. Our series included 11 cases of recurrent rectal cancer and 14 of fibrotic mass. All cases of recurrent rectal cancer and post-operative fibrosis were confirmed by biopsy. We evaluated the spectra with an attention to the differences of pattern of the curves between recurrent rectal cancer and post-operative fibrosis. The ratio of peak area of all peaks at 1.6 -4.1ppm to lipid (0.9 - 1.6ppm) [P (1.6 -4.1ppm)/P (0.9 -1.6ppm)] was calculated in recurrent rectal cancer and post-operative fibrosis groups, and compared the results between these groups. We also evaluated the sensitivity and specificity for discriminating recurrent rectal cancer from post-operative fibrosis by analysis of 1 H-MRS. RESULTS: Proton MR spectra of post-operative fibrosis showed significantly diminished amount of lipids compared with that of recurrent rectal cancer. The ratio of P (1.6 -4.1ppm)/P (0.9 -1.6ppm) in post-operative fibrosis was much higher than that of recurrent rectal cancer with statistical significance (p < .05) due to decreased peak area of lipids. Mean (standard deviations of P (1.6 -4.1ppm)/P (0.9 -1.6ppm) in post-operative fibrosis and recurrent rectal cancer group were 2.71 +/-1.48 and 0.29 +/- 0.11, respectively. With a cut-off value of 0.6 for discriminating recurrent rectal cancer from post-operative fibrosis, both the sensitivity and specificity were 100% (11/11, and 14/14). CONCLUSION: Recurrent rectal cancer and post-operative fibrosis can be distinguished from each other by analysis of proton MR spectroscopic features, and 1 H-MRS can be a new method for differential diagnosis between recurrent rectal cancer and post-operative fibrosis.
Biopsy ; Diagnosis, Differential ; Fibrosis* ; Magnetic Resonance Spectroscopy* ; Protons* ; Rectal Neoplasms* ; Sensitivity and Specificity

The long-term effects of bilateral subthalamic nucleus deep brain stimulation (STN-DBS) on postural instability and gait difficulty (PIGD) in patients with Parkinson’s disease (PD) remain unclear. In this study, we aimed to evaluate the longterm effects of STN-DBS surgery on PIGD symptoms in patients with advanced-stage PD. Methods This study included 49 consecutively included patients with PD who underwent bilateral STN-DBS. The Unified Parkinson’s Disease Rating Scale (UPDRS) scores and subscores for PIGD were assessed at baseline and at 1, 3, and 5 years postoperatively. The PIGD subscore was divided into PIGD-motor and PIGD-activities of daily living (ADL) scores according to parts III and II of the UPDRS, respectively. Results The PIGD-motor and PIGD-ADL scores at the “medication-off” state improved at 3 and 5 years, respectively. Overall, the UPDRS III and II scores at “medication-off” improved at 5 years. The UPDRS IV score also significantly improved and the levodopa equivalent daily dosage decreased at all follow-ups. Finally, the PIGD-motor score at baseline was able to predict long-term improvement in the PIGD-motor score at the 5-year follow-up. Conclusion The STN-DBS has both short- and long-term effects on PIGD, as well as overall motor function, in patients with advanced PD. The degree of PIGD at the preoperative evaluation can be used to predict long-term outcomes after STN-DBS surgery.

Intratumoral calcification is one of the most noticeable of radiologic findings. It facilitates detection and provides information important for correctly diagnosing tumors. In the abdominopelvic cavity, a wide variety of tumors have calcifications with various imaging features, though the majority of such calcifications are dystrophic in nature. In this article, we classify the imaging patterns of intratumoral calcification according to number, location, and morphology. Then, we describe commonly-encountered abdominopelvic tumors containing typical calcification patterns, focusing on their differentiable characteristics using the imaging patterns of intratumoral calcification.
Calcification, Physiologic ; Calcinosis ; Tomography, X-Ray Computed ; Abdominal Neoplasms ; Pelvic Neoplasms ; Female ; Humans ; Male ; Adult

Herein, we report on a case of primary torsion of the greater omentum with segmental infarction, which should provide useful information for the preoperative diagnosis of future such cases. Primary torsion of the greater omentum with omental infarction is a rare condition. There are only a few radiological reports of secondary torsion of the greater omentum caused by the hernial sac. During surgical exploration, infarction of the greater omentum was identified, due to the observation of omental torsion without any underlying cause. We describe a patient with characteristic computed tomography (CT) findings of primary omental torsion with segmental infarction, which correlated with the operative and pathologic results.
Diagnosis ; Humans ; Infarction* ; Omentum*

PURPOSE: Imaging studies for the diagnosis of breast cancer such as ultrasonography or mammography, play an essential role; however, it is well known that they have some limitations; the low specificity of ultrasonography and the low sensitivity of mammography, especially in the dense breasts of Korean women. Recently, 99mTc-MIBI scintimammography was introduced for the detection of breast cancer, and showed acceptable results in its diagnostic accuracy. In this study, the clinical usefulness of 99mTc-MIBI scintimammography was evaluated for the determination of a better imaging study for the diagnosis of breast cancer. METHODS: This study included 75 patients with breast masses, and 3 imaging studies were performed; mammography, ultrasonography and 99mTc-MIBI scintimammography and the results compared on the basis of the pathological reports from core needle or excisional biopsies of the patients. RESULTS: From the pathological reports of 75 patients, 45 cases were confirmed as malignant and 30 as benign diseases. Based on the pathological reports, the sensitivities of mammography, ultrasonography and 99mTc-MIBI scintimammiography were 62.2, 88.9, and 86.7%, and the specificites of 3 imaging studies were 90.0, 76.7, and 90.3% respectively. The positive predictive values were 90.3, 85.1, and 92.9% and the negative predictive values were 61.4, 82.1, and 81.8%, respectively. 99mTc-MIBI mammoscintigraphy showed a comparable sensitivity to ultra-sonography, and a similar specificity to mammography, in the diagnosis of breast cancer. CONCLUSION: Clinically, as a primary imaging tool, 99mTc-MIBI mammoscintigraphy showed acceptable results in the diagnosis of breast cancer. Considering the weak points of ultrasonography and mammography, 99mTc-MIBI mammoscintigraphy would be a very useful tool in the diagnosis of breast cancer.
Biopsy ; Breast Neoplasms* ; Breast* ; Diagnosis* ; Female ; Humans ; Mammography ; Needles ; Sensitivity and Specificity ; Ultrasonography

No abstract available.
Neck*