A case of eosinophilic cholecystitis: Radiologic-pathologic correlation.

Eosinophilic cholecystitis (EC) is a rare condition that is characterized by eosinophilic infiltration in the gallbladder wall. We report the case of a 35-year-old woman who presented with unremitting right upper quadrant pain for 1 month. Computed tomography showed a strongly enhanced inner layer of the gallbladder wall.

Double Microballoon-occluded Ethanol Embolization for Pelvic Arteriovenous Malformation: A Case Report.

A 40-year-old man was incidentally found to have right-sided pelvic arteriovenous malformation (AVM) with an aneurysmal dominant outflow vein (DOV). The AVM had two main feeding arteries forming a cluster of fine vessels shunt to the DOV. As transvenous approach was impossible due to anatomical difficulty, transarterial ethanol embolization was performed under simultaneous double microballoon occlusion of the two feeding arteries in combination with protective coil embolization of the prostatic branches.

A case of renomedullary interstitial cell tumor: Radiologic-pathologic correlation.

Renomedullary interstitial cell tumor (RMICT), referred to as a medullary fibroma, is almost always asymptomatic and incidentally identified either at autopsy or upon resection of the kidney for other reasons. Although a few cases of RMICTs that are large in size and clinically symptomatic have been reported, there are few reports of RMICTs contrasting imaging findings with pathological findings. In this report, we describe a relatively large RMICT case of 3 cm in size, focusing on the radiologic-pathologic correlation.

Detection of the Vesical Arteries Using Three-dimensional Digital Subtraction Angiography Relevant to Intra-arterial Infusion Chemotherapy for Bladder Cancer Using Double-balloon Catheters.

Purpose: This study aims to assess and measure the origin of the superior vesical artery and its distance from the anterior trunk of the internal iliac artery, to which the anticancer drug is infused via double-balloon-occluded arterial infusion bladder-preserving therapy for locally invasive bladder cancer.

Material And Methods: The 160 pelvic sides of 80 patients were analyzed. Double-balloon catheters were bilaterally introduced into the contralateral superior gluteal artery via the internal iliac arteries using a bilateral transfemoral approach.

Endovascular and Percutaneous Embolotherapy for the Body and Extremity Arteriovenous Malformations.

Arteriovenous malformations (AVMs) consist of abnormal communications between the arteries and veins. They can involve any part of the body and extremity and grow in proportion to age and in response to hormonal influence or trauma. When symptoms progress from Schöbinger clinical stage II to III, transcatheter and/or direct puncture embolization are less-invasive and repeatable options for symptom palliation.

Comparison of reduced field-of-view DWI and full field-of view DWI for the differentiation between non-muscle invasive bladder cancer and muscle invasive bladder cancer using VI-RADS.

Purpose: To evaluate whether reduced field-of-view (rFOV) DWI sequence improves the differentiation between non-muscle-invasive bladder cancer (NMIBC) and muscle-invasive bladder cancer (MIBC) using VI-RADS.

Material And Methods: Eighty-nine patients underwent bladder MRI with full field-of-view (fFOV) DWI and rFOV DWI sequence. Images were independently evaluated by 2 radiologists.

Catecholamine-secreting adrenal lipomatous ganglioneuroma: A case study.

Ganglioneuroma, which arise from neural crest cells, typically occurs in adolescents and young adults. Most ganglioneuromas are clinically asymptomatic and hormonally silent, therefore may be diagnosed incidentally during imaging studies. Ganglioneuroma containing fat (lipomatous ganglioneuroma) is a rare variant of ganglioneuroma that is histologically characterized by a mature adipocytic component admixed with a conventional ganglioneuroma.

Hemorrhage of MRI and Immunohistochemical Panels Distinguish Secretory Carcinoma From Acinic Cell Carcinoma.

Objectives: Secretory carcinoma (SC, mammary analogue secretory carcinoma) is a salivary gland tumor with ETV6-NTRK3 gene fusion, and its differential diagnosis includes acinic cell carcinoma (ACC). As hemorrhage is often seen in SC, we hypothesized that magnetic resonance imaging (MRI) and immunohistochemical analyses could distinguish SC from ACC.

Study Design: Retrospective study.

Reduction of the radiation dose and the amount of contrast material in hepatic dynamic CT using low tube voltage and adaptive iterative dose reduction 3-dimensional.

The purpose of this study was to prospectively evaluate the image quality and the diagnostic ability of low tube voltage and reduced contrast material dose hepatic dynamic computed tomography (CT) reconstructed with adaptive iterative dose reduction 3-dimensional (AIDR 3D).Eighty-nine patients underwent hepatic dynamic CT using one of the 2 protocols: tube voltage of 120 kVp, contrast dose of 600 mgI/kg, and filtered back projection in Protocol A (n = 46), and tube voltage of 100 kVp, contrast dose of 500 mgI/kg, and AIDR 3D in Protocol B (n = 43). The volume CT dose index (CTDIvol) and size-specific dose estimates (SSDEs) were compared between the 2 groups.

Can bladder preservation therapy come to the center stage?

Decision-making in urological cancer care requires a multidisciplinary approach for refinement, but its impact on urothelial carcinoma of the bladder has not been fully addressed for the past three decades, except for the latest immunological checkpoint inhibitor approved by the U.S. Food and Drug Administration for metastatic muscle-invasive bladder cancer that is resistant to platinum-based chemotherapy.

Pathological findings of uterine tumors preoperatively diagnosed as red degeneration of leiomyoma by MRI.

Purpose: Venous infarction of a leiomyoma is known as red degeneration of leiomyoma (RDL) and can be a cause of acute abdomen. Although magnetic resonance imaging (MRI) is the only modality that can depict the inner condition of a leiomyoma, the typical MR findings of RDL are sometimes identified incidentally even in asymptomatic patients. The purpose of this study is to clarify common pathological findings of uterine tumors preoperatively diagnosed as RDL by MRI.

Assessment of the ability of CT urography with low-dose multi-phasic excretory phases for opacification of the urinary system.

Objective: To prospectively evaluate the ability of CT urography with a low-dose multi-phasic excretory phase for opacification of the urinary system.

Materials And Methods: Thirty-two patients underwent CT urography with low-dose multi-phasic s using adaptive iterative dose reduction 3D acquired at 5-, 10-, and 15-minute delays. Opacification scores of the upper urinary tracts and the urinary bladder were assigned for each excretory phase by two radiologists, who recorded whether adequate (>75%) or complete (100%) opacification of the upper urinary tract and urinary bladder was achieved in each patient.

[Early and Mid-term Outcomes of Surgical Treatment with Conservative Approach Using Adventitial Inversion Technique for an Acute Type A Aortic Dissection].

Objective: This study was performed to assess the early and mid-term outcomes of surgical treatment with adventitial inversion technique for an acute type A aortic dissection.

Methods: From June 2008 to June 2015, 48 patients underwent emergent surgery for acute type A aortic dissection. Ascending aorta/hemiarch replacement was performed in 44/48(91.

Postoperative Outcomes of Hybrid Repair in the Treatment of Aortic Arch Aneurysms.

Background: The advent of thoracic endovascular aneurysm repair (TEVAR) has bought about a tremendous revolution in the treatment strategy for aortic arch aneurysms. We reviewed our experience using TEVAR with the hybrid approach in the treatment of aortic arch aneurysms to evaluate its feasibility, safety, and effectiveness.

Methods: Between October 2008 and July 2014, 61 consecutive patients (51 men; mean age 75.

Real-time in vitro intravascular reconstruction and navigation for endovascular aortic stent grafting.

Background: Trans-catheter endovascular stent grafting minimizes trauma and increases the benefitting patient population. However, the alignment between stent graft branches and vasculature branches remains time-consuming and challenging, and such techniques require a significant amount of contrast agent for imaging.

Methods: A new framework for intravascular reconstruction based on sensor fusion between intravascular ultrasound (IVUS) imaging and electromagnetic (EM) tracking was proposed.

Novel Software-Assisted Hemodynamic Evaluation of Pelvic Flow During Chemoperfusion of Pelvic Arteries for Bladder Cancer: Double- Versus Single-Balloon Technique.

Purpose: Approximately 83 % of patients with bladder cancer have achieved a complete response after undergoing a novel bladder preservation therapy involving balloon-occluded intra-arterial infusion chemotherapy (BOAI) using a four-lumen double-balloon catheter, known as the Osaka Medical College regimen. This study aimed to show the quantitative difference in hemodynamics of the bladder arteries using syngo iFlow (Siemens Healthcare, Erlangen, Germany), which provides an automatic tool for quantitative blood flow analysis between double BOAI (D-BOAI) and conventional single BOAI (S-BOAI).

Materials And Methods: Fifty patients were included.

A Case of Bilateral Decidualized Endometriomas during Pregnancy: Radiologic-pathologic Correlation.

Clinical differentiation between decidualized endometrioma and malignant transformation still poses difficulties as both are intracystic vascularized excrescences of an endometrial cyst and exhibit similar characteristics on color-flow Doppler sonography. This is a characteristic sonographic finding associated with ovarian cancer, but MRI can provide further information about mural excrescences that can aid in their differential diagnosis; for example, the signal of decidualized endometriomas is isointense with the placenta within the uterus on all sequences and the apparent diffusion coefficient is higher than that of malignant mural nodules. Thus, MRI should be an aid in deciding whether to intervene during pregnancy.

Endovascular Therapy for Femoropopliteal Artery Disease and Association of Risk Factors With Primary Patency: The Implication of Critical Limb Ischemia and TASC II C/D Disease.

The treatment of femoropopliteal artery disease remains controversial, without clear guidelines specifying the indications for endovascular therapy (EVT). Accordingly, we retrospectively examined our experience of using EVT to treat femoropopliteal artery disease. A total of 91 limbs in 82 patients underwent EVT for the treatment of femoropopliteal artery disease.

Pre- and Intraoperative Predictors of Delirium after Open Abdominal Aortic Aneurysm Repair.

Objectives: We reviewed our series of patients who underwent open abdominal aortic aneurysm (AAA) repair and constructed a prediction model for postoperative delirium.

Methods: 397 patients who underwent open AAA repair at our institution between April 2005 and June 2013 were retrospectively reviewed. Postoperative delirium was diagnosed from the patients' medical records according to the Diagnostic and Statistical Manual of Mental Disorders 4th Edition (DSM-IV) criteria.

A 'through-and-through bowing technique' for antegrade thoracic endovascular aneurysm repair with total arch debranching: a technical note and the initial results.

Objectives: The aim of this study was to evaluate the deployment accuracy of a new 'through-and-through bowing technique' that involves the deployment of the stent graft with total arch debranching via median sternotomy.

Methods: The migration distance, patients' demographic characteristics, operative values and the postoperative complications were examined retrospectively. From November 2012 to February 2013, 5 patients with an aortic arch aneurysm underwent total debranching and antegrade thoracic endovascular aneurysm repair (TEVAR) (control group).

Risk factors for adverse outcomes after endovascular therapy for critical limb ischemia with tissue loss due to infrainguinal artery disease.

Background: The purpose of this study was to analyze the risk factors for an adverse outcome after endovascular therapy (EVT) for critical limb ischemia (CLI) with tissue loss due to infrainguinal artery disease.

Methods: We retrospectively reviewed the charts of patients with tissue loss (Rutherford class 5 and 6) due to infrainguinal artery disease who were managed with endovascular therapy (EVT) between January 2006 and December 2013. The primary endpoint was amputation-free survival (AFS), while the secondary endpoints were freedom from a major adverse limb event (MALE) plus perioperative (30 days) death (POD), limb salvage, and survival rates at one year.

A Case of External Compression of Femoral Vein by the Enlarged Iliopsoas Bursa with Long Term Edema.

The iliopsoas bursa is the largest bursa in the region of hip joint. It is unusual that these bursa become symptomatic. However the bursa can compress femoral vein, leading to lower extremity edema.

Validation of Patient Selection for Endovascular Aneurysm Repair or Open Repair of Abdominal Aortic Aneurysm – Single-Center Study.

Background: To validate the criteria for endovascular aneurysm repair (EVAR) or open repair of abdominal aortic aneurysm (AAA) at Nagoya University Hospital, the results of both treatments were retrospectively compared.

Methods And Results: Patient selection for EVAR was primarily based on suitable anatomy, minimum age 75 years, and significant comorbidity. From June 2007 to April 2014, 426 patients were treated via EVAR (EVAR group) and 346 patients were treated with open surgery (OS group).

Relationship between the distal migration and length of the distal landing zone after endovascular aneurysm repair (EVAR).

Background And Purpose: Endovascular aneurysm repair (EVAR) is the main treatment for patients with abdominal aortic aneurysms. This study examines the relationship between the migration of the distal landing zone and the length of the landing zone.

Materials And Methods: The subjects of this study were 36 patients who underwent contrast-enhanced computed tomography 1 year after EVAR.

Successful surgical exclusion of rapidly expanding kommerell diverticulum following a total arch replacement for an acute type a aortic dissection.

A 50-year-old man presented with an acute type A aortic dissection with an aberrant right subclavian artery. Emergent total arch replacement with an elephant trunk was performed. Intraoperatively, the origin of the aberrant right subclavian artery could not be resected because it was located too far from the distal arch.