We retrospectively analyzed 22 patients pelvic CT, in whom the acetabular fracture were suspected in plain film. And compared and analyzed the computed tomogram findings and plain radiographic findings. The results were as follows. CT enables better evaluation of shape, extent, and degree of separation of fragment. CT was helpful in detecting the combined fracture and soft tissue injuries. CT showed intraarticular loose bodies, which were invisible on plain film. In patients with pelvic trauma, no necessary changing position during CT examination. CT was useful demonstrates the remnant of intraarticular osseous fragment and adequacy of reduction after surgery.
Acetabulum* ; Humans ; Retrospective Studies ; Soft Tissue Injuries

PURPOSE: To evaluate the usefulness and limitations of power Doppler sonography in determining the tumor vascularity. MATERIALS AND METHODS: Power Doppler sonography was performed on VX2 carcinomas present in rabbit thighs, and the findings were compared with those of microangiography in an almost identical plane. Tumor vascularity was qualitatively analysed on the basis of tumor vessel distribution and density, and the presence of thick and thin vesels ; for a comparison of tumor vascularity as seen on microangiography, tumor blood flow signals shown by power Doppler sonography were graded 3, 2, 1, 0. For quantitative analysis, a comparison was made of the percentage of tumor area occupied by vessels, as shown in each study. Data analysis utilized the Wilcoxon signed-rank test and Spearman correlation test. RESULTS: Mean tumor vascularity scores, as seen on power Doppler sonography and relating to tumor vessel distribution and density, and the presence of thick and thin vessels, were 2.87, 2.73, 2.93 and 2.73, respectively. The means and medians of the percentages of tumor area occupied by vessels were 22.7% & 23.5% and 36.4% & 34.7% on microangiography and power Doppler sonography, respectively. Thus, there was good correlation between these two modes. CONCLUSION: Power doppler sonography could demonstrate the tumor vascularity on microangiography relatively well but tend to overestimate it.
Neoplasms, Experimental ; Statistics as Topic ; Thigh

OBJECTIVE: Carpal tunnel syndrome(CTS) is one of the compression neuropathy in long-term hemodialysis patients, that considerably caused by venous stasis or edema in the site of the vascular access, arterial steal syndrome and currently reported, amyloid deposit. CTS shows pain, paresthesia and weakness in the area that median nerve is distributed. We analysed the incidence and characteristics of nerve conduction test of CTS in the patients of hemodialyzed chronic renal failure. METHODS: Thirty hemodialyzed patients were enrolled and divided three groups in peripheral polyneuropathy(PNP) only, CTS only, and both by clinical manifestations and results of nerve conduction test. RESULTS: 1) In all thirty patients, two(7%) had a CTS only, seven(23%) had a PNP only and sixteen(54%) had combined PNP with CTS. 2) In al thirty patients(60 hands), 2 cases(two-3%) had a CTS with clinical manifestations, 25 cases (siteen-42%) had a CTS without clinical manifestation and 1 case(one-1.7%) showed clinical manifestations of CTS but was not diagnosed CTS by nerve conduction test. There was no significant correlation between clinical manifestations and development of CTS(p>0.05). 3) In all thirty patients(60 hands), 6 cases(four-10 %) had a CTS with edema, 21 cases(fourteen-35%) had a CTS without edema and 2 cases(two-1.7%) showed edema of hands but was not diagnosed CTS by nerve conduction test. There was no significant correlation between edema and development of CTS (p>0.05). 4) Among the eighteen patients with CTS, nine (50%) patients were involved in one hand, nine(50%) patients in both. 5) In the sixty hands, 33 hands had vascular access, in which 13 cases(39.4%) had CTS and 20 cases(60.6%) had not. In the 27 hands which had not vascular access, 14 cases(51.6%) had CTS and 13 cases(48.1%) had not. There was no significant correlation between vascular access and development of CTS(p>0.05). CONCLUSION: The incidence of CTS in the patients of hemodialyzed chronic renal failure was 60%. There was no significant correlation between CTS and vascular access, edema, duration of hemodialysis. Subclinical CTS was more frequent compared to the overt CTS.
Carpal Tunnel Syndrome* ; Edema ; Hand ; Humans ; Incidence ; Kidney Failure, Chronic* ; Median Nerve ; Neural Conduction ; Paresthesia ; Plaque, Amyloid ; Polyneuropathies ; Renal Dialysis*

PURPOSE: To evaluate the usefulness of preoperative or postoperative lymphoscintigraphy for the identification of lymphatic drainage and sentinel lymph node in patients with eyeball and ocular adnexal malignant tumors. METHODS: Lymphoscintigraphy was performed preoperatively or postoperatively in 5 patients with biopsy proven primary eyeball or ocular adnexal malignant tumors. Patients underwent lymphoscintigraphy with 500 micro Ci of technetium-99m antimony trisulfide colloid in a volume of 0.1 ml. We injected intradermally either the outer 1/3 of the upper or lower lid, or the inner 1/3 of the upper or lower lid. Images were taken by Gamma camera and we checked lymphatic drainage and sentinel lymph nodes. RESULTS: Two patients with conjunctival malignant melanoma showed normal lymphatic drainage, but the other two patients had lymphatic drainage to the parotid and submandibular chain, and sentinel lymph nodes were noted as the parotid lymph node and the submandibular lymph node. The patients with sebaceous gland carcinoma injected in the outer 1/3 of the upper lid had submandibular lymphatic chain and the sentinel lymph node proved to be the submandibular lymph node. CONCLUSIONS: Lymphoscintigraphy demonstrated the lymphatic drainage system and successfully identified the sentinel lymph nodes. This should prove to be very helpful to evaluate metastasis of the eyeball and ocular adnexal malignant tumors by selective lymph node biopsy and to decide the degree of surgery.
Antimony ; Biopsy ; Colloids ; Drainage ; Gamma Cameras ; Humans ; Lymph Nodes ; Lymphoscintigraphy* ; Melanoma ; Neoplasm Metastasis ; Sebaceous Glands

No abstract available.
Breast Neoplasms* ; Breast* ; Diagnosis*

Zinner's syndrome is a rare congenital abnormality of the mesonephric duct. Unilateral renal agenesis, ipsilateral seminal vesicle cyst, and ipsilateral ejaculatory duct obstruction are the triad of maldevelopment of the mesonephric duct which comprises Zinner's syndrome. It is an extremely rare case, in that approximately 100 cases only have been reported worldwide. We discovered a rare developmental anomaly with other mesonephric duct-associated abnormalities, Zinner's syndrome with a presumed ectopic prostate and triorchidism and do report here.

Solid pseudopapillary tumor (SPT) is a low grade malignant tumor in the pancreas, and extrapancreatic SPT is extremely rare. We report a case of a 61-year-old woman who complained abdominal pain with diffuse tenderness. She was diagnosed with extrapancreatic SPT with extensive peritoneal dissemination and hepatic metastases. Although a few cases have reported imaging findings of extrapancreatic SPT, there have been no reports of extrapancreatic SPT with aggressive tumor behavior and dismal prognosis. Although imaging features closely resembled those of classical pancreatic SPTs, malignant transformation of extrapancreatic SPT should be considered when focal discontinuity of the tumor capsule with ill-defined margin and invasion of adjacent structures were identified.
Abdominal Pain ; Female ; Humans ; Middle Aged ; Neoplasm Metastasis ; Pancreas ; Prognosis ; Ultrasonography

Purpose: The purpose of this study was to evaluate whether shear wave elastography (SWE) and the shear wave dispersion slope (SWD) obtained from 2-dimensional shear wave imaging (2D-SWI) of the gallbladder (GB) bed of the liver could be helpful in the diagnosis of acute cholecystitis. Methods: We included 44 patients referred for abdominal ultrasonography (US) under the impression of acute cholecystitis from April 2018 to March 2019. Patients with chronic liver disease were excluded from this study. In addition to routine upper abdominal US, we performed 2D-SWI including liver stiffness measurements by SWE and SWD, which reflects tissue viscosity. 2D-SWI was performed at the GB bed of the liver through the right intercostal approach at least 3 times with different frames. We assessed typical US findings and the added value of 2D-SWI in diagnosing acute cholecystitis. Histopathologic results of surgical specimens were used as the standard of reference. If a surgical specimen was unavailable, a bile fluid test or clinical followup for more than 3 months served as the reference standard. Results: The optimal cutoff values for SWE and SWD were 8 kPa and 10.9 (m/sec)/kHz, respectively. In the univariate analysis, SWE, GB distension, and sludge were predictive factors of acute cholecystitis. In the multivariate analysis, categorized SWE was the only significant predictor (P<0.01). By using 2D-SWI, the diagnostic performance of two readers did not significantly increase, although the inter-reader agreement improved (k=0.654-0.778). Conclusion 2D-SWI of the GB bed of the liver could be helpful for diagnosing acute cholecystitis.

Arteriovenous malformation (AVM) is a lesion involving a high-flow vascular malformation, which is one of the causes of massive gastrointestinal bleeding. In the pediatric population, AVM is quite rare in the gastrointestinal tract, and the most common primary site is the colon. A small bowel is a rare primary site of AVM, and only 1 case has been reported in Korea. Here, we report on a case of AVM found in the distal ileum of a 14-year-old girl who complained about recurrent lower abdominal pain only without a gastrointestinal hemorrhage. In the previous research literature, a small bowel AVM can be diagnosed through detecting the existence of an enhancing nidus of the intestinal wall at the arterial phase, accompanied by an early draining vein as it appeared on a dynamic contrast-enhanced abdominal computed tomography. In our case, the pathologically confirmed AVM of the distal ileum showed a dot-like enhancement within the thick low-attenuating submucosal layer of the terminal ileum.

Purpose: The aim of this study was to evaluate the association between the severity of hyperechoic pancreas (HP) on ultrasonography (US) and glycemic progression. Methods: In total, 1,386 participants who underwent abdominal US as part of health examinations between December 2008 and May 2014 were included in this retrospective study. We classified pancreatic echogenicity on a 4-point scale, and compared it using two distinct criteria: fatty pancreas (FP) 1 criterion (normal vs. ≥mild HP) and FP2 criterion (normal/mild HP vs. ≥moderate HP). According to the presence of nonalcoholic fatty liver disease (NAFLD), participants were subdivided into four groups: non-NAFLD and non-HP, isolated NAFLD, isolated HP, and HP with NAFLD. Glycemic progression was defined as progression from normoglycemia to prediabetes or diabetes or progression from prediabetes to diabetes. Results: During the follow-up (median, 5.9 years), 262 of the 1,386 participants developed glycemic progression. Using FP2, the probability of glycemic progression across the four subgroups showed cumulative aggravation for NAFLD and HP (all P<0.05). Isolated HP showed a higher probability of glycemic progression than isolated NAFLD according to FP2 (P<0.001). The highest probability of glycemic progression was observed in patients with both NAFLD and HP (P<0.001). The hazard ratio for glycemic progression increased with the severity of HP. Conclusion Increasing severity of HP on US was found to be significantly correlated with glycemic progression. Moreover, isolated HP of moderate or greater severity predicted glycemic progression independent of NAFLD.