Osseous hemangioma is a benign vascular tumor, and it usually occurs in the vertebrae and the skull. However, hemangiomas of flat bones are rare, and there are very few reports that describe the radiologic findings of osseous hemangioma of the ilium. We report a unique case of large cavernous hemangioma mimicking a chondrogenic malignant bone tumor originated from the ilium in a 22-year-old female. The mass showed stippled calcifications, heterogeneous enhancement with thick septa and enhanced soft tissue components on CT and MR, and also this mass demonstrated heterogeneous 2-fluoro [fluorine-18]-2-deoxy-D-glucose (18F-FDG) uptake on 18F-FDG PET/CT.
Bone Neoplasms/radionuclide imaging ; Diagnosis, Differential ; Female ; Fluorodeoxyglucose F18/*diagnostic use ; Hemangioma, Cavernous/*radionuclide imaging ; Humans ; Ilium/*blood supply ; Magnetic Resonance Imaging ; Positron-Emission Tomography and Computed Tomography ; Radiopharmaceuticals/*diagnostic use ; Young Adult

BACKGROUND: This study evaluated the efficacy of ulinastatin for attenuating organ injury and the release of proinflammatory cytokines due to cardiopulmonary bypass (CPB) during cardiac surgery. METHODS: Patients undergoing valvular heart surgery employing CPB were assigned to receive either ulinastatin (group U, n = 13) or a placebo (group C, n = 11) before the commencement of CPB. Hemodynamic data, parameters of major organ injury and function, and proinflammatory cytokines were measured after the induction of anesthesia (T1), after CPB (T2), at the end of anesthesia (T3), and at 24 hours after surgery (POD). RESULTS: The demographic data, CPB duration, and perioperative transfusions were not different between the groups. PaO2/FiO2 in group U was significantly higher than that in group C at T3 (3.8 +/- 0.8 vs. 2.8 +/- 0.7, P = 0.005) and at POD (4.0 +/- 0.7 vs. 2.8 +/- 0.7, P < 0.001). Creatine kinase-MB at POD in group U was significantly lower than that in group C (17.7 +/- 8.3 vs. 33.7 +/- 22.1, P = 0.03), whereas troponin I at POD was not different between the groups. Creatinine clearance and the extubation time were not different between the groups at POD. The dopamine infusion rate during the post-CPB period in group U was significantly lower than that in group C (1.6 +/- 1.6 vs. 5.5 +/- 3.3 microg/kg/min, P = 0.003). The interleukin-6 and tumor necrosis factor-alpha concentrations at T1, T2, and T3 as well as the incidences of postoperative cardiac, pulmonary and kidney injuries were not different between the groups. CONCLUSIONS: Ulinastatin pretreatment resulted in an improved oxygenation profile and reduced inotropic support, probably by attenuating the degree of cardiopulmonary injury; however, it did not reduce the levels of proinflammatory cytokines.
Anesthesia ; Cardiopulmonary Bypass ; Creatine ; Creatinine ; Cytokines ; Dopamine ; Glycoproteins ; Hemodynamics ; Humans ; Incidence ; Interleukin-6 ; Kidney ; Oxygen ; Thoracic Surgery ; Troponin I ; Tumor Necrosis Factor-alpha

PURPOSE: The purpose of this study was to determine the underestimation rate of ductal carcinoma in situ (DCIS) on sonographically guided 14-gauge core needle biopsy of the breast and to investigate the factors associated with this underestimation. MATERIALS AND METHODS: We retrospectively reviewed 2990 consecutive lesions that underwent sonographically guided 14-gauge core needle biopsy between January 2005 and December 2008. Among them, 61 lesions were pathologically proven to be DCIS (2.04%). A total of 50 DCIS lesions (mean patient age: 50.7 years old, age range: 36-79 years old) that underwent surgical resection were included in this study. After surgery, the lesion proven to be invasive was defined as being in the underestimated group and the lesion proven to DCIS was defined as being in the correctly diagnosed group. We determined the underestimation rate of DCIS and we retrospectively reviewed and compared the clinical, pathologic and radiologic features of the two groups. RESULTS: The underestimation rate of DCIS was found to be 28% (14 of 50 lesions). The underestimation of DCIS was significantly frequent for a clinically palpable lesion (78.6% (11/14) vs. 30.5% (11/36), respectively, p = 0.002). The sonographically maximal diameter of a lesion was significantly larger in the underestimated group than that in the accurately diagnosed group (28.4 +/- 14.0 mm vs. 17.6 +/- 10.3 mm, respectively, p = 0.017) and underestimation was significantly frequent when the sonographic lesion size was > 20 mm (p = 0.012). There was no significant difference in terms of age, the lesion type, the Breast Imaging-Reporting and Data System (BI-RADS) category or the pathologic features between the two groups. CONCLUSION: The underestimation rate of DCIS was 28% for sonographically guided 14-gauge core needle biopsy of the breast. Clinical symptoms such as a palpable lesion and a sonographic lesion size > 20 mm were the factors related with the underestimation of DCIS.
Biopsy, Large-Core Needle ; Breast ; Carcinoma, Ductal ; Carcinoma, Intraductal, Noninfiltrating ; Humans ; Information Systems ; Retrospective Studies

Ganglion cysts are common lesions that are most often found around the hands and feet. Ganglia around the proximal tibiofibular joint usually occur within the synovial membrane, tendon sheath or peroneal nerve, but they rarely occur within muscle. We report here on a case of a 60-year-old man who complained of an asymptomatic deep seated mass in the proximal part of the right calf that he'd had for more than two years. On magnetic resonance imaging, the lesion appeared as a cystic lesion within the gastrocnemius muscle without communication with the knee joint. To the best of our knowledge, intramuscular ganglion cyst has never been reported in the Korean dermatologic literature.
Foot ; Ganglia ; Ganglion Cysts ; Hand ; Humans ; Joints ; Knee Joint ; Magnetic Resonance Imaging ; Middle Aged ; Muscle, Skeletal ; Muscles ; Peroneal Nerve ; Synovial Membrane ; Tendons

OBJECTIVE: To determine the utility of intercellular adhesion molecule (ICAM)-1 antibody-conjugated gadolinium diethylenetriaminepentaacetic acid (Gd-DTPA-anti-ICAM-1) as a targeted contrast agent for the molecular magnetic resonance imaging (MRI) in collagen-induced arthritis (CIA). MATERIALS AND METHODS: Three groups of mice were used: non-arthritic normal, CIA mice in both the early inflammatory and chronic destructive phases. The MR images of knee joints were obtained before and after injection of Gd-DTPA-anti-ICAM-1, Gd-DTPA, and Gd-DTPA-Immunoglobulin G (Ig G) and were analyzed quantitatively. The patterns of enhancement on the MR images were compared with the histological and immunohistochemical ICAM-1 staining. RESULTS: The images obtained after injection of Gd-DTPA-anti-ICAM-1 displayed gradually increasing signal enhancement from the moment following injection (mean +/- standard deviation [SD]: 424.3 +/- 35.2, n = 3) to 24 hours (532 +/- 11.3), rather than on pre-enhanced images (293 +/- 37.6) in the early inflammatory phase of CIA mice. However, signal enhancement by Gd-DTPA and Gd-DTPA-IgG disappeared after 80 minutes and 24 hours, respectively. In addition, no significant enhancement was seen in the chronic destructive phase of CIA mice, even though they also showed inflammatory changes on T2-weighted MR images. ICAM-1 expression was demonstrated in the endothelium and proliferating synovium of the early inflammatory phase of CIA mice, but not in the chronic destructive phase. CONCLUSION: Molecular MRI with Gd-DTPA-anti-ICAM-1 displays specific images targeted to ICAM-1 that is expressed in the inflamed synovium of CIA. This novel tool may be useful for the early diagnosis and differentiation of the various stages of rheumatoid arthritis.
Animals ; Arthritis, Experimental/*metabolism ; Collagen ; Contrast Media ; Disease Models, Animal ; Gadolinium DTPA/diagnostic use ; Intercellular Adhesion Molecule-1/*metabolism ; Knee Joint/*metabolism/radiography ; Magnetic Resonance Imaging/*methods ; Male ; Mice ; Synovial Membrane/*metabolism/radiography

No abstract available.

The most common site for the metastasis of osteosarcoma is the lung, and other sites of metastases include the bone, lymph node, pleura and liver. Although unusual extrapulmonary metastases have been reported with the improvement of the therapeutic results for the primary lesions, they are exceptionally rare. We report here on a case of prostatic metastasis of an osteosarcoma of the proximal tibia, and this developed seven years after successful resection, and four years after resection of a pulmonary metastasis. Radical prostatectomy was performed, and histological examination demonstrated metastatic osteosarcoma. To the best of our knowledge, this is the first case of prostatic metastasis of osteosarcoma in the medical literature.
Liver ; Lung ; Lymph Nodes ; Neoplasm Metastasis ; Osteosarcoma ; Pleura ; Prostate ; Prostatectomy ; Tibia

PURPOSE: We wanted to evaluate the diagnostic benefits and safety of performing CT-guided transthoracic needle biopsy (TTNB) with using an18-gauge automated cutting needle. MATERIALS AND METHODS: We retrospectively reviewed the medical records of 332 patients who underwent CT-guided transthoracic biopsy with an automated 18-gauge cutting needle for 341 thoracic lesions. The histopathologic results, diagnostic accuracy and complication rate were determined. RESULTS: 316 (92.7%) of 34l lesions were histopathologically diagnosed by CT-guided TTNB. The lesions were malignant in 172 patients and benign in 144 patients. The diagnostic accuracy was 92.9%. The sensitivity and specificity for malignant lesions were 93% and 92.3%, respectively. The sensitivity and specificity for benign lesions were 92.3% and 93%, respectively. TTNB induced complications developed for 54 of 341 (15.8%) procedures. The most frequent complication was pneumothorax (41/341, 12%). Nine patients with pneumothorax (9/41, 22%) required chest tube placement. CONCLUSION: CT-guided TTNB with an 18-gauge automated cutting needle could be useful for making the histopathologic diagnosis of malignant and benign pulmonary lesions as the technique provides a big enough tissue sample for histopathologic examination. The procedure-related complication rate was acceptably low.
Biopsy ; Biopsy, Needle* ; Chest Tubes ; Diagnosis ; Humans ; Medical Records ; Needles* ; Pneumothorax ; Retrospective Studies ; Sensitivity and Specificity

PURPOSE: We wanted to evaluate the safety and effectiveness of superselective transarterial embolization for the management of gastrointestinal bleeding. MATERIALS AND METHODS: We evaluated 97 of 115 patients who had undergone diagnostic angiography and transarterial embolization for gastrointestinal bleeding from February 2001 to July 2004, and they subsequently underwent superselective transarterial embolization. Their ages ranged from 17 to 88 years (mean age: 58.5 years), and 73 were men and 24 were women. The etiologies were a postoperative condition (n=31), ulcer (n=23), Mallory-Weiss syndrome (n=3), trauma (n=3), pseudoaneurysm from pancreatitis (n=3), diverticula (n=2), inflammatory bowel disease (n=2), tumor (n=2), Behcet's disease (n=2), hemobilia (n=1), and unknown origin (n=25). The regions of bleeding were the esophagus (n=3), stomach and duodenum (n=41), small bowel (n=38) and colon (n=15). All the patients underwent superselective transarterial embolization using microcoils, gelfoam or a combination of microcoils and gelfoam. Technical success was defined as devascularization of targeted vascular lesion or the disappearance of extravasation of the contrast media, as noted on the angiography after embolization. Clinical success was defined as the disappearance of clinical symptoms and the reestablishment of normal cardiovascular hemodynamics after transarterial embolization without any operation or endoscopic management. RESULTS: The technical success rate was 100%. The primary clinical success rate was 67% (65 of 97 patients). Of the 32 primary failures, fourteen patients underwent repeat embolization; of these, clinical success was achieved in all the patients and so the secondary clinical success rate was 81% (79 of 97 patients). Of the 18 patients with primary failures, five patients underwent operation, one patient underwent endoscopic management and the others died during the observation period due to disseminated coagulopathy or complications of their underlying diseases. During the follow up period, six patients of the 79 clinically successful patients died due to disseminated coagulopathy or complications of their underlying diseases, and so the total mortality rate was 19% (18 of 97 patients). Postembolization complications such as bowel ischemia or infarction did not occur during the observation period. CONCLUSION: Superselective transarterial embolization is an effective therapy for treating acute gastrointestinal hemorrhage, and it has a high technical rate and clinical success rate, and a low complication rate.
Aneurysm, False ; Angiography ; Colon ; Contrast Media ; Diverticulum ; Duodenum ; Esophagus ; Female ; Follow-Up Studies ; Gastrointestinal Hemorrhage ; Gelatin Sponge, Absorbable ; Hemobilia ; Hemodynamics ; Hemorrhage* ; Humans ; Infarction ; Inflammatory Bowel Diseases ; Ischemia ; Male ; Mallory-Weiss Syndrome ; Mortality ; Pancreatitis ; Stomach ; Ulcer

PURPOSE: The aim of this study was to determine a safe gastrointestinal contrast agent that could be used in various clinical situations where there is a risk of aspiration using a rabbit model. MATERIALS AND METHODS: 30 healthy white rabbits were used. The rabbits were divided into 5 groups containing six animals each, one control group (anesthesia only) and 4 groups receiving various contrast agents [Solotop (Barium sulphate suspension), Gastrografin (Sodium and meglumine amidotrizoate), and Telebrix (Meglumine ioxitalamate), Visipaque (Iodixanol)]. The contrast agents were injected selectively into a main bronchus via a catheter inserted under fluoroscopy guidance. The rabbits were sacrificed either 1 day or 7 days after injecting the contrast agents, and the tissue reaction of the bronchi and lungs were examined both macro- and microscopically. The level of alveolar septal thickening, peribronchiolar lymphocytic infiltration, pulmonary congestion and edema, inflammatory exudate in the alveoli or bronchiolar lumina, microabscess formation, necrosis, pigmentation of materials injected, and fibropurulent pleurisy were evaluated and graded according to the severity as follows: no change, mild, moderate, marked in degree. RESULTS: The common microscopic findings were alveolar septal thickening and peribronchiolar lymphocytic infiltration. Pulmonary congestion and edema, inflammatory exudate in the alveoli or bronchiolar lumina were observed in 21 out of 24 rabbits receiving the contrast agents. Pigmentation of the materials injected was observed only in the group receiving Solotop. An inflammatory exudate in the alveoli and bronchiolar/bronchial lumina, microabscess formation, and necrosis were noted in most groups, but was more frequent and severe in the group receiving Gastrografin. CONCLUSION: The histopathological reactions of the rabbit lungs after the intrabronchial application of a contrast agent showed variable degrees of inflammatory reactions. Gastrografin produced most severe and extensive reaction, Solotop and Telebrix a moderate reaction, and Visipaque a minimal reaction. Therefore, a non-ionic dimeric contrast agent such as Visipaque may be the safest contrast agent in the lung when a GI tract examination is performed in clinical situations where there is a risk of aspiration.
Animals ; Bronchi ; Catheters ; Contrast Media* ; Diatrizoate Meglumine ; Edema ; Estrogens, Conjugated (USP) ; Exudates and Transudates ; Fluoroscopy ; Gastrointestinal Tract ; Lung* ; Meglumine ; Necrosis ; Pigmentation ; Pleurisy ; Rabbits