Journal Detail Information

1

Cite

Share

MR Imaging and Spectroscopic Findings of Primary Angiosarcoma of the Breast: A Case Report.

Youn Jeong KIM ; Kyeung Hee LEE ; Young Up CHO ; Sei Joong KIM ; Young Chae JU

Journal of the Korean Radiological Society.2006;54(6):557-560. doi:10.3348/jkrs.2006.54.6.557

Angiosarcoma is a rare, malignant tumor of the breast. MR spectroscopy and a new breast MR imaging technique called MR angiography were used to study a case of multifocal primary angiosarcoma of the breast. The mass was isointense on the T1-weighted images and it was hyperintense on the T2-weighted images. Early fast enhancement and draining vessels with a washout curve were revealed by the dynamic enhancement. The MR spectroscopy did not show a choline peak.
Angiography ; Breast Neoplasms ; Breast* ; Choline ; Hemangiosarcoma* ; Magnetic Resonance Imaging* ; Magnetic Resonance Spectroscopy ; Sarcoma

2

Cite

Share

Sonograhphic Features of Adenosis Tumor.

Hae Kyoung JUNG ; Eun Kyung KIM

Journal of the Korean Radiological Society.2006;54(6):551-555. doi:10.3348/jkrs.2006.54.6.551

PURPOSE: We wanted to evaluate the sonographic features of adenosis tumor of the breast. MATERIALS AND METHODS: We evaluated the sonographic findings of 9 lesions in 9 patients who had a diagnosis of adenosis tumor after excision. The mean age of the patients was 32 years. All the masses were palpable. The sonographic features were interpreted by the ACR-BI-RADS (American College of Radiology Breast Imaging Reporting and Data System). Three of the women underwent mammography. RESULTS: The mean size of the lesion was 2.4 cm, and the shape of the masses was oval (n=9). The orientation was parallel (n=9). The margin was circumscribed (n=7), angular (n=1) and microlobulated (n=1). The lesion boundary was an abrupt interface (n=9). The echo pattern was hypoechoic (n=8) and isoechoic (n=1). Posterior acoustic enhancement was seen in 7 masses, and the other 2 masses showed combined shadowing and enhancement. The final assessment categories were classified into category 3 (n=7) and category 4 (n=2). Mammograms performed in 3 patients revealed a circumscribed mass in 2 patients and negative findings in 1 patient. CONCLUSION: Adenosis tumor of the breast usually shows as an oval, parallel oriented, circumscribed, hypoechoic mass with posterior acoustic enhancement on sonography.
Acoustics ; Breast ; Diagnosis ; Female ; Humans ; Mammography ; Shadowing (Histology) ; Ultrasonography

3

Cite

Share

Usefulness of Breast MRI for Diagnosing an Extensive Intraductal Component of Breast Cancer: Comparison with Mammography and Ultrasonography.

Tae Hee KIM ; Doo Kyung KANG ; Yong Sik JUNG ; Hyunee YIM

Journal of the Korean Radiological Society.2006;54(6):543-550. doi:10.3348/jkrs.2006.54.6.543

PURPOSE: An extensive intraductal component of breast cancer is a principal risk factor for local recurrence, and this is difficult to diagnose with performing only mammography. We investigated the usefulness of breast MRI for evaluating an extensive intraductal component of breast cancer, and we compared this modality with mammography and ultrasonography (US). MATERIALS AND METHODS: From March 2003 to July 2004, 90 patients underwent breast MRI among all the patients who were suffering with breast cancer and for whom an EIC was ultimately revealed to be present or not. A total 83 patients with stage I and II breast cancer were finally included in this study. EIC positivity was defined according to the imaging data as follows: 1) microcalcifications beyond the tumor shadow or malignant microcalcifications without a tumor mass on mammography, 2) tubular hypoechoic structures adjacent to the tumor or architectural distortion with calcifications beyond the tumor on US, and 3) linear or ductal enhancement, segmental or regional clumped enhancement, and spotty nodular or reticular enhancement adjacent to the tumor on MRI. EIC was present in 41 patients and this finding was negative in 42 patients. The results were then compared those results from mammography and US. RESULTS: The sensitivities of detecting EIC by mammography, US and MRI were 48.6%, 67.5% and 80.5%, respectively, and the corresponding specificities were 92.3%, 73.2% and 69.0%, respectively. In the cases that were suspected to be EIC positive on more than two imaging modality, the positive predictive value (PPV) was 78.1%. In cases that were suspected of being EIC positive on just one imaging modality, the negative predictive value (NPV) was 75.0%. CONCLUSION: Breast MRI provides good information about an EIC of breast cancer and it is a more sensitive study than mammography and US, yet the specificity for the detection of EIC is highest on mammography. A combined evaluation by mammography, US and MRI is the most accurate way to diagnose an EIC of breast cancer.
Breast Neoplasms* ; Breast* ; Humans ; Magnetic Resonance Imaging* ; Mammography* ; Recurrence ; Risk Factors ; Sensitivity and Specificity ; Ultrasonography*

4

Cite

Share

Papillary Lesions of the Breast: Comparison of the US-guided 14-Gauge Automated Gun Method and the 11-Gauge Directional Vacuum-Assisted Biopsy Method.

Eun Sook KO ; Nariya CHO ; Sang Kyu YANG ; Do Youn KIM ; Woo Kyung MOON

Journal of the Korean Radiological Society.2006;54(6):537-541. doi:10.3348/jkrs.2006.54.6.537

PURPOSE: To compare the outcomes of US-guided 14-gauge automated biopsy and 11-gauge vacuum-assisted biopsy for the papillary lesions of the breast. MATERIALS AND METHODS: We retrospectively reviewed the US-guided core biopsies of 1,723 consecutive breast lesions that were treated from January 2003 to April 2005. Ninety-eight lesions (5.7%) were pathologically reported as papillary lesions. The biopsies were performed with using a 14-gauge automated gun on 65 lesions or with using an 11-gauge vacuum-assisted device on 33 lesions. Thirty-five lesions (54%, 35/65) of 14-gauge automated gun biopsies and 5 lesions (15%, 5/33) of 11-gauge vacuum-assisted biopsies underwent surgery. The histologic findings were compared with the surgical, imaging and follow-up findings. The histologic underestimation rate, the repeat biopsy rate and the false negative rate were compared between the two groups. The repeat biopsy rate was determined by dividing the total number of core biopsies into the number of repeat biopsies. "ADH underestimation" was defined as a lesion yielding atypical ductal hyperplasia on percutaneous biopsy and carcinoma at surgery, and "DCIS underestimation" was defined as a lesion yielding ductal carcinoma in situ on percutaneous biopsy and invasive carcinoma at surgery. RESULTS: The repeat biopsy rate was 42% (27/65) for the 14-gauge automated gun biopsies and 9.1% (3/33) for the 11-gauge vacuum-assisted biopsies. The ADH underestimation rate was 50% (7/14) for the 14-gauge automated gun biopsies and 0% (0/4) for the 11-gauge vacuum-assisted biopsies. The DCIS underestimation was 14% (1/7) for the 14-gauge automated gun biopsies and 0% (0/2) for the 11-gauge vacuum-assisted biopsies. The false negative rate was 0% for these two groups. CONCLUSION: For the papillary lesions of the breast, the outcomes of the US-guided core biopsies performed with the 11-gauge vacuum-assisted device were better than those of the biopsies performed with the 14-gauge automated gun, in terms of underestimation and repeat biopsy.
Biopsy* ; Breast* ; Carcinoma, Intraductal, Noninfiltrating ; Follow-Up Studies ; Hyperplasia ; Retrospective Studies

5

Cite

Share

Mediastinitis and Pneumomediastinum in a Preterm Infant with Iatrogenic Esophageal Perforation: A Case Report.

Min Ji KIM ; Ok Hwa KIM

Journal of the Korean Radiological Society.2006;54(6):531-535. doi:10.3348/jkrs.2006.54.6.531

Iatrogenic esophageal perforation is very rare in pediatric patients. Preterm infants or low birth weight babies are more susceptible to esophageal perforation due to performing frequent tracheal intubation and/or gastric tube installation. When perforation occurs, it may present as pneumothorax and pulmonary interstitial emphysema. However, isolated pneumomediastinum without pneumothorax is a rare finding. Furthermore, the mediastinitis after esophageal perforation is rare complication, but it can be a critical complication. Therefore, making an immediate and precise diagnosis as well as instituting proper treatment of esophageal perforation and mediastinitis are important. To the best of our knowledge, few reports have described mediastinitis after pneumomediastinum that was secondary to esophageal perforation. We describe here the radiologic findings of a rare case of mediastinitis after pneumomediastinum in a preterm infant with esophageal perforation.
Diagnosis ; Emphysema ; Esophageal Perforation* ; Humans ; Infant, Low Birth Weight ; Infant, Newborn ; Infant, Premature* ; Intubation ; Mediastinal Emphysema* ; Mediastinitis* ; Pneumothorax

6

Cite

Share

Relationship among the Myelography, MRI and EMG in Young Patients with Low Back Pain or Radiating Pain.

Ji Youn JANG ; Dong Hun KIM ; Young Jae PARK

Journal of the Korean Radiological Society.2006;54(6):525-530. doi:10.3348/jkrs.2006.54.6.525

PURPOSE: We wanted to evaluate the relationship among the myelography, magnetic resonance imaging (MRI), and electromyography (EMG) findings in young patients with low back pain, and we wanted to assess the significance of the spinal geometric measurements as well as type of disc herniation seen on MRI. MATERIALS AND METHODS: Forty-four young men with lower back pain were included, and they were all clinically suspected of suffering with lumbar disc herniation. All of them underwent myelography, MRI and EMG. We measured spinal geometry including the anteroposterior diameters of the central canal and thecal sac, the interlaminar distance, the width of the lateral recess and the thickness of the ligamentum flavum, and we evaluated for root deviation as well as disc herniation on the MRIs. We compared the types of disc herniation on MRI with the myelography and EMG findings. Also, we investigated the correlation of the spinal geometric measurements on MRI with the EMG and myelography findings. RESULTS: The types of disc herniation on MRI were not significantly related to the myelography (p = 0.298) and EMG findings (p = 0.372). The EMG findings were not related to either the myelography findings (p = 0.435) or the spinal geometric measurements (p > 0.05) on MRI. Nerve root compression that was noted on myelography was related to the thecal sac AP diameter (p = 0.016) and the width of the lateral recess (p = 0.011). There were no correlations between myelography and the findings of root deviation on MRI (p=0.052). CONCLUSION: MRI can play an excellent diagnostic role for young patients with radiculopathy or lower back pain. It could increase the diagnostic accuracy if it is used in conjunction with myelography and EMG. The narrowing of thecal sac AP diameter and the width of lateral recess rather than the type of disc herniation on MRI were well correlated with the myelography and EMG findings.
Electromyography ; Humans ; Ligamentum Flavum ; Low Back Pain* ; Magnetic Resonance Imaging* ; Male ; Myelography* ; Radiculopathy ; Spine

7

Cite

Share

Ferucarbotran-Enhanced MR Imaging of the Radiofrequency Ablation Zones in the Normal Rabbit Liver: Comparison with the Conventional MR Imaging.

Sung Hyun HONG ; Seung Kwon KIM ; Seoung Wan CHAE ; Hyon Joo KWAG ; Min Hee LEE ; Young Rae LEE ; Byung Moon KIM ; Hyun Pyo HONG ; Heon HAN ; Ji Yeon LEE

Journal of the Korean Radiological Society.2006;54(6):515-523. doi:10.3348/jkrs.2006.54.6.515

PURPOSE: We wanted to evaluate the findings of ferucarbotran-enhanced MR imaging of the radiofrequency (RF) ablation zones in normal rabbit livers and we compared the findings with the conventional MR imaging. MATERIALS AND METHODS: RF ablation zones were created in the livers of 12 rabbits in vivo by using a 17-gauge internally cooled electrode with 1-cm active tip, and RF energy (maximum power: 30 Watt) was applied for three minutes. Three rabbits were sacrificed immediately and then at three days, two weeks and six weeks after RF ablation. Before sacrifice, the T1- and T2-weighted images (WI) and the ferucarbotran-enhanced T2*WIs were obtained and compared regarding the signal intensity of ablation zone, the laminar pattern of the signal intensity and the contrast-to-noise ratio (CNR) of the ablation zone to the liver parenchyma. RESULTS: On T1- and T2WIs, the RF ablation zones showed two to four laminar patterns of signal intensity according to the time. Meanwhile, on the ferucarbotran-enhanced T2WIs, the RF ablation zones showed high signal intensity without a laminar pattern regardless of time. The CNRs of the ablation zones to the liver parenchyma on the ferucarbotran-enhanced T2*WIs (18.2+/-5.9) were significantly higher than those of the TIWIs (1.6+/-1.5) and T2WIs (2.7+/-1.9) (p < 0.05). CONCLUSION: On the ferucarbotran-enhanced T2*WI, the RF ablation zones showed high signal intensity without a distinct laminar pattern and significantly higher lesion conspicuity than did the conventional T1- and T2WIs. Therefore, the ferucarbotran-enhanced T2*WI shows the RF ablation zone more accurately and clearly than do the conventional T1- and T2WIs.
Catheter Ablation* ; Electrodes ; Liver* ; Magnetic Resonance Imaging* ; Rabbits

8

Cite

Share

Radiologic Approach to Diffuse Infiltrative Lung Disease.

Eun Young KANG ; Ok Hee WOO ; Hwan Seok YONG ; Ki Yeol LEE ; Yu Whan OH ; In Ho CHA

Journal of the Korean Radiological Society.2006;54(6):503-513. doi:10.3348/jkrs.2006.54.6.503

The Radiology approach to diffuse infiltrative lung disease (DILD) is based on a chest radiography and CT. Chest radiography can categorize DILD into five main patterns of abnormality: linear, reticular, cystic, nodular, and ground-glass patterns. The CT patterns of DILD can be classified into six patterns including thickened interlobular septa, reticular, cystic, nodular, ground-glass, and consolidation patterns. The pertinent differential diagnosis of DILD is based on the pattern recognition approach of abnormalities, and a specific diagnosis can often be made using chest radiography and CT. This pictorial essay illustrates the radiology pattern recognition approach for DILD using chest radiography and CT.
Diagnosis ; Diagnosis, Differential ; Lung Diseases* ; Lung* ; Radiography ; Thorax

9

Cite

Share

Bronchioloalveolar Carcinoma Mimicking DILD: A Case Report.

Ju Young LEE ; In Jae LEE ; Dong Gyu KIM ; Soo Kee MIN ; Min Jeong KIM ; Sung Il HWANG ; Yul LEE ; Sang Hoon BAE

Journal of the Korean Radiological Society.2006;54(6):497-501. doi:10.3348/jkrs.2006.54.6.497

Bronchioloalveolar carcinoma is a disease with an insidious onset and various radiologic manifestations. A solitary peripheral pulmonary nodule, multiple nodules and lobar or diffuse consolidation are the common radiological findings. We report here on a case of bronchioloalveolar carcinoma mimicking DILD (diffuse interstitial lung disease) in a 60 year-old male that manifested as multiple peripheral consolidations, ground-glass opacities, subpleural lines, pleural thickening and interlobular septal thickening on CT.
Adenocarcinoma, Bronchiolo-Alveolar* ; Humans ; Lung ; Lung Neoplasms ; Male ; Middle Aged ; Multiple Pulmonary Nodules

10

Cite

Share

The Vascular Pedicle Width seen on Chest PA in Normal Korean Adults.

Hee Jung SUNWOO ; Myeong Im AHN ; Jun Hyun BAIK ; Youn Ju JUNG ; Jee Young KIM ; Seog Hee PARK

Journal of the Korean Radiological Society.2006;54(6):491-496. doi:10.3348/jkrs.2006.54.6.491

PURPOSE: We wanted to measure the vascular pedicle width (VPW) in normal Korean adults and correlate the VPW with the body physique and we also wanted to establish the index for normal VPWs, which could be utilized in reading chest PAs. MATERIALS AND METHODS: The VPW was measured on the posteroanterior (PA) chest radiographs of 262 normal Korean adults (134 men and 128 women, age range: 22-88 years, mean age: 45.2 years), who visited the hospital for a general health examination. The relationship between the VPW and the height and the Body Mass Index (BMI) was evaluated. Correlations between height and the thoracic spine length (TSL) and between the BMI and the lateral chest wall thickness (CWT) were analyzed as well. RESULTS: The mean VPW was 47.4 (+/-6.4) mm. The VPW was positively correlated with the height (p<0.01) and the BMI (p<0.01) of the subject. The patient's height was well correlated with the TSL, and the BMI was correlated with the CWT (r=0.75, r=0.76). The table for the normal VPWs according to patient's TSL and CWT was established. CONCLUSION: By measuring the TSL and the CWT on chest PA, which reflect the height and BMI, respectively, and by utilizing the provided table for the normal VPW, we can determine the normality of a patient's VPW.
Adult* ; Blood Vessels ; Body Mass Index ; Female ; Humans ; Male ; Radiography, Thoracic ; Spine ; Thoracic Wall ; Thorax*

DISPLAY OPTIONS

Cite

Share

Cite

Share

Cite

Share

Cite

Share

Cite

Share

Cite

Share

Cite

Share

Cite

Share

Cite

Share

Cite

Share