PURPOSE: We aimed to study clinicopathological parameters and complications of patients who underwent magnetic resonance imaging-transrectal ultrasonography fusion guided prostate biopsy (MRI-TRUS FGB). MATERIALS AND METHODS: We investigated 576 patients who underwent MRI-TRUS FGB of prostate from May 2003 to December 2017 retrospectively. The clinicopathological features and complications were presented, using the modified Clavien-Dindo classification system. RESULTS: Fourteen patients (2.4%) readmitted within 30 days after MRI-TRUS FGB due to complications, and 85.7% (12 of 14) of them complained mild to moderate complications, the Clavien-Dindo classification grades I and II. The most common complication was hematuria (n=5, 0.9%), followed by acute urinary retention (n=3, 0.5%), dysuria (n=2, 0.3%), fever (n=1, 0.2%), hematochezia (n=1, 0.2%). According to multivariate analysis, only age was the significant risk factor of overall complications and bleeding related complications. Two hundred thirteen patients were diagnosed as prostate cancer after MRI-TRUS FGB. When the Likert suspicious scale of prostate cancer on apparent diffusion coefficient (ADC) was ≤4, 27.8% (137 of 493) were diagnosed as prostate cancer, of whom 56.2% (77 of 137) were confirmed as prostate cancer only at randomized 12 cores. When the ADC suspicious level was grade 5, 91.6% (76 of 83) were diagnosed as prostate cancer, of whom 11.8% (7 of 76) were confirmed as prostate cancer only at randomized 12 cores. CONCLUSIONS: The present study demonstrates the safety of MRI-TRUS FGB in terms of complications. When ADC suspicious level is grade 5, MRI-TRUS FGB alone could be a reasonable measure to diagnose prostate cancer, but randomized 12-core prostate biopsy would be recommended additionally when ADC suspicious level is ≤4.
Biopsy ; Classification ; Diffusion ; Dysuria ; Fever ; Gastrointestinal Hemorrhage ; Hematuria ; Hemorrhage ; Humans ; Magnetic Resonance Imaging ; Multivariate Analysis ; Pathology ; Prostate ; Prostatic Neoplasms ; Retrospective Studies ; Risk Factors ; Ultrasonography ; Urinary Retention

BACKGROUND/AIMS: A barbed puncture needle with a side hole was recently developed to improve sample quality and quantity in endoscopic ultrasound-guided fine-needle aspiration (EUS-FNA). In this study, we retrospectively assessed the usefulness of this puncture needle. METHODS: Factors affecting diagnostic yield, safety, and diagnostic accuracy were investigated in 76 patients who consecutively underwent EUS-FNA for neoplastic lesions at our hospital between January and December 2013. RESULTS: The procedure was successful in all cases; the rates of sample collection and determination of the correct diagnosis were 92.1% and 89.5%, respectively. The mean number of needle passes required for diagnosis was 1.1. Complications included mild intraluminal bleeding in two patients (2.6%). Multivariate analysis revealed that lesion size (< or =20 mm) was significantly associated with a decreased chance of determining the correct diagnosis. CONCLUSIONS: Core biopsy needles with a side hole are safe and provide a satisfactory diagnostic yield. However, the side hole may potentially reduce the rate of making the correct diagnosis in small lesions.
Adult ; Aged ; Aged, 80 and over ; Digestive System Neoplasms/*diagnosis/ultrasonography ; Endoscopic Ultrasound-Guided Fine Needle Aspiration/*instrumentation ; Equipment Design ; Equipment Safety ; Female ; Gastrointestinal Tract/pathology/ultrasonography ; Humans ; Male ; Middle Aged ; Multivariate Analysis ; Needles/adverse effects/*statistics & numerical data ; Predictive Value of Tests ; Retrospective Studies ; Sensitivity and Specificity ; Statistics, Nonparametric

BACKGROUND/AIMS: Submucosal tumors of the esophagus are rare lesions among all esophageal neoplasms. The purpose of this study was to evaluate the clinicopathologic features of esophageal submucosal tumors treated by surgical approach. METHODS: We analyzed the clinicopathologic and endoscopic ultrasonographic features of 18 esophageal submucosal tumors which were treated by surgical approach at Boramae Medical Center and Seoul National University Bundang Hospital from January 2005 to June 2012. RESULTS: The mean age was 48.9 years old and male to female ratio was 2.6:1. Asymptomatic patients were most common (77.8%). In endoscopic ultrasonographic finding, the majority tumor arouse in the middle (55.6%) and lower (44.4%) esophagus, and appeared as hypoechoic lesion (72.2%) in the 4th layer (83.3%). The most common indication for surgical approach was unclear biological behavior of the tumor. Minimally-invasive technique using thoracoscopy was applied for the enucleation (83.3%). The mean diameter of the tumor was 5.4 cm, and the final diagnosis was leiomyoma (89.9%) and gastrointestinal stromal tumor (11.1%). CONCLUSIONS: Leiomyoma was the most common submucosal tumor in esophagus. However, endoscopic ultrasonography was not able to differentiate between leiomyoma and gastrointesinal stromal tumor. For more accurate diagnosis and treatment, minimally-invasive approaches may be suitable for the surgical enucleation of indicated esophageal submucosal tumor.
Adult ; Aged ; Esophageal Neoplasms/*pathology/*surgery/ultrasonography ; Esophagus/pathology ; Female ; Gastrointestinal Stromal Tumors/diagnosis/surgery ; Humans ; Intestinal Mucosa/*pathology ; Leiomyoma/diagnosis/surgery ; Male ; Middle Aged ; Retrospective Studies ; Thoracoscopy

BACKGROUND/AIMS: The accurate preoperative prediction of the risk of malignancy of gastrointestinal stromal tumors (GISTs) is difficult. The aim of this study was to determine whether tumor size and endoscopic ultrasonography (EUS) features can preoperatively predict the risk of malignancy of medium-sized gastric GISTs. METHODS: Surgically resected, 2 to 5 cm gastric GIST patients were enrolled and retrospectively reviewed. EUS features, such as heterogeneity, hyperechoic foci, calcification, cystic change, hypoechoic foci, lobulation, and ulceration, were evaluated. Tumors were grouped in 1 cm intervals. The correlations of tumor size or EUS features with the risk of malignancy were evaluated. RESULTS: A total of 75 patients were enrolled. The mean tumor size was 3.43+/-0.92 cm. Regarding the risk of malignancy, 51 tumors (68%) had a very low risk, and 24 tumors (32%) had a moderate risk. When the tumors were divided into three groups in 1 cm intervals, the proportions of tumors with a moderate risk were not different between the groups. The preoperative EUS features also did not differ between the very low risk and the moderate risk groups. CONCLUSIONS: Tumor size and EUS features cannot be used to preoperatively predict the risk of malignancy of medium-sized gastric GISTs. A preoperative diagnostic modality for predicting risk of malignancy is necessary to prevent the overtreatment of GISTs with a low risk of malignancy.
Aged ; *Endosonography ; Female ; Gastrointestinal Stromal Tumors/*pathology/surgery/*ultrasonography ; Humans ; Male ; Middle Aged ; Mitotic Index ; Predictive Value of Tests ; Preoperative Period ; Retrospective Studies ; Risk Assessment ; Stomach Neoplasms/*pathology/surgery/*ultrasonography ; Tumor Burden

No abstract available.
Adenoma/*diagnosis/pathology/ultrasonography ; Brunner Glands/pathology ; Duodenal Neoplasms/*diagnosis/pathology/ultrasonography ; Endoscopy, Gastrointestinal ; Female ; Humans ; Middle Aged ; Tomography, X-Ray Computed

BACKGROUND/AIMS: Subepithelial tumors are occasionally found during upper gastrointestinal endoscopy. The purpose of this study was to evaluate endoscopic characteristics of mesenchymal tumors originating from muscularis mucosa or muscularis propria. METHODS: A total of 307 mesenchymal tumors of the upper gastrointestinal tract were diagnosed between March 2006 and February 2012 at Yeouido St. Mary's Hospital (Seoul, Korea). Data on endoscopic and endoscopic ultrasonographic findings were collected and analyzed by retrospectively reviewing the medical records. RESULTS: The mean size of the mesenchymal tumors originating from muscularis mucosa was significantly smaller than those originating from muscularis propria (10.5+/-6.9 mm vs. 14.3+/-13.9 mm, p=0.035). The most common locations of the mesenchymal tumors originating from muscularis mucosa and muscularis propria were esophagus (69.1%) and body of the stomach (43.3%), respectively (p<0.001). Rolling sign was more commonly observed with mesenchymal tumors originating from muscularis mucosa (80.4%, p=0.001), and cushion sign was more frequently absent with those originating from muscularis propria (72.4%, p<0.001). Internal echo was homogenous in 89.7% and 81.9% of mesenchymal tumors originating from muscularis mucosa and muscularis propria, respectively (p=0.092). CONCLUSIONS: The size, location, and movability of mesenchymal tumors originating from muscularis mucosa were different from those of mesenchymal tumor originating from muscularis propria.propria.
Adult ; Aged ; Aged, 80 and over ; Esophagus/pathology/ultrasonography ; Female ; Gastrointestinal Neoplasms/*diagnosis/pathology/ultrasonography ; Gastrointestinal Stromal Tumors/*diagnosis/pathology/ultrasonography ; Gastroscopy ; Humans ; Male ; Middle Aged ; Mucous Membrane/pathology ; Retrospective Studies ; Stomach/pathology/ultrasonography

Incidental gastrointestinal subepithelial mass is increasing with national cancer screening endoscopy. Most of gastrointestinal subepithelial mass are small-sized and asymptomatic tumor with benign nature, but gastrointestinal stromal tumor should be ruled-out because of its malignant behavior. Although conventional endoscopy alone can differentiate the nature of subepithelial mass, more accurate diagnosis can be achieved with endoscopic ultrasonography and its guided biopsy. In this review, differential diagnosis and treatment strategy of incidental gastrointestinal subepithelial mass would be presented.
Diagnosis, Differential ; Endoscopy, Gastrointestinal ; Gastrointestinal Stromal Tumors/*diagnosis/pathology/ultrasonography ; Humans ; Intestinal Neoplasms/diagnosis/pathology/ultrasonography ; Stomach Neoplasms/diagnosis/pathology/ultrasonography ; Tomography, X-Ray Computed

OBJECTIVETo investigate the efficacy, indication and complication of radiofrequency ablation (RFA) with cool-tip needle in patients with hepatic malignancies.

METHODS421 patients with hepatic malignancies underwent ultrasound-guided RFA with cool-tip needle under local anaesthesia. The tumor size was from 1.0 to 15 cm in diameter with an average diameter of 4.3 cm.

RESULTSThe complete ablation (CA) rate was 91.4% (382/418) in the patients with a tumor < 3 cm, 78.9% (97/123) in those with a tumor of 3 to 5 cm and 37.6% (35/93) in the patients with a tumor > 5 cm. No patient died or changed to celiotomy during the 1121 times of RFA for 634 lesions in 421 patients. No hemorrhage occurred in any of these patients after the RFA treatment. The complications included abdominal pain in 32.3% (136/421), nausea in 9.0% (38/421), fever in 34.9% (147/421) and biliary leakage in 0.2% (1/421) of the patients.

CONCLUSIONUltrasound-guided percutaneous radiofrequency ablation with cool-tip needle is effective and safe in the treatment of liver tumors.

Abdominal Pain ; etiology ; Adult ; Aged ; Aged, 80 and over ; Breast Neoplasms ; secondary ; Catheter Ablation ; adverse effects ; methods ; Female ; Fever ; etiology ; Gastrointestinal Neoplasms ; secondary ; Humans ; Liver Neoplasms ; diagnostic imaging ; pathology ; surgery ; Male ; Middle Aged ; Nausea ; etiology ; Ultrasonography, Interventional

BACKGROUND/AIMS: Endoscopic ultrasonography (EUS) is a valuable imaging modality for the evaluation of gastrointestinal submucosal tumor (SMT). EUS is helpful in assessing the layer of origin, tumor diameter, shape, border characteristics, and internal echo patterns of SMTs and thus makes it possible to predict histologic diagnosis with educated guess. However, some studies have found no significant differences in EUS features between benign and malignant mesenchymal tumors. By comparing EUS impressions with histologic diagnosis, we evaluated the accuracy of EUS in differential diagnosis of gastrointestinal SMTs. METHODS: 58 cases of gastrointestinal SMTs with both EUS findings and pathologic reports were compared retrospectively from August 2001 to September 2003. RESULTS: 34 patients had lesions in the stomach and 13, 8, 3 in the esophagus, duodenum, and colon respectively. Benign lesions were predominant (46 of 58). The EUS and pathologic diagnosis coincided in 46/58 (79.3%) of the cases. Use of EUS led to the correct diagnosis in 7/9 (77.8%) of malignant GISTs (gastrointestinal stromal tumor) and leiomyosarcomas. Two small malignant gastric GISTs were diagnosed as benign with EUS. CONCLUSIONS: EUS is a useful tool in the differential diagnosis of gastrointestinal SMTs and predicting malignant lesions. However, some malignant GISTs were diagnosed as benign tumor with EUS examination.
Adult ; Aged ; Biopsy ; Diagnosis, Differential ; *Endosonography ; Female ; Gastrointestinal Neoplasms/pathology/*ultrasonography ; Gastrointestinal Stromal Tumors/pathology/ultrasonography ; Humans ; Leiomyosarcoma/pathology/ultrasonography ; Male ; Middle Aged

OBJECTIVETo assess the value of endoscopic miniprobe ultrasonography in the diagnosis of carcinomas and submucosal tumors of the large intestine.

METHODSA total of 96 patients with carcinomas and submucosal tumors of the large intestine were given colonoscopic ultrasonography with a miniprobe (Olympus UM-2R, 12 MHz; UM-3R, 20 MHz) from December, 2000 to January, 2002.

RESULTSCarcinomas of the large intestine of 81 patients appeared as a hypoechoic mass under endoscopic ultrasonography, by which 67 patients (82.7%) were accurately diagnosed as having infiltrated colorectal carcinomas. The sensitivity of endoscopic ultrasonography in the diagnosis of lymph node metastasis was 55.4%, while the specificity was 68.8%. The positive predictive value and the negative predictive value were 0.88 and 0.28, respectively. All 15 cases with submucosal tumors were diagnosed correctly under endoscopic ultrasonography except for one leiomyoma, which was misdiagnosed as leiomyosarcoma.

CONCLUSIONSEndoscopic miniprobe ultrasonography has a high accuracy in determining the invasion depth of carcinomas of the large intestine and the diagnosis of submucosal tumors. The pre-operative endoscopic ultrasonography may provide valuable information and influence the choice of therapy for carcinomas and submucosal tumors of the large intestine.

Adult ; Aged ; Aged, 80 and over ; Colorectal Neoplasms ; diagnostic imaging ; pathology ; Endoscopy, Gastrointestinal ; Female ; Humans ; Intestinal Mucosa ; pathology ; Male ; Middle Aged ; Neoplasm Staging ; Ultrasonography