Colonic duplication in an adult with chronic constipation: a case report and review of its surgical management.

One of the possible causes of chronic constipation is colonic duplication. Although seldom asymptomatic, its diagnosis is important due to the risk of malignancy that it carries. We present a case of a young female patient with long-standing constipation who was referred to Kolorektal Cerrahi Clinic (Izmir, Turkey) after scans revealed tubular type of colonic duplication.

Effect of interval between neoadjuvant chemoradiotherapy and surgery on disease recurrence and survival in rectal cancer: long-term results of a randomized clinical trial.

Background: The optimal timing of surgery following chemoradiotherapy (CRT) is controversial. This trial aimed to assess disease recurrence and survival rates between patients with locally advanced rectal adenocarcinoma (LARC) who underwent total mesorectal excision (TME) after a waiting interval of 8 weeks or less (classic interval; CI) versus more than 8 weeks (long interval; LI) following preoperative CRT.

Methods: This was a phase III, single-centre, randomized clinical trial.

Patient-centered oncosurgical planning with cancer models in subspecialty education.

Background: A fundamental aspect of oncosurgical planning in organ resections is the identification of feeder vessel details to preserve healthy organ tissue while fully resecting the tumors. The purpose of this study was to determine whether three-dimensional (3D) cancer case models of computed tomography (CT) images will assist resident-level trainees in making appropriate operative plans for organ resection surgery.

Methods: This study was based on the perception of surgery residents who were presented with 5 different oncosurgical scenarios.

Female form of persistent Müllerian duct syndrome: A rare case report and review of literature.

Introduction: Persistent Müllerian duct syndrome (PMDS) is a rare form of internal male pseudohermaphroditism characterized by the presence of rudimentary Müllerian structures in a virilized male often presenting as undescended testes. Thus, each patient diagnosed with undescended testes should promptly be investigated for PMDS because the early diagnosis has direct effects on outcome and prognosis.

Case Report: A 26-year-old-male complained of long-standing abdominal pain two years ago and was diagnosed having bilateral undescended testes in the pelvic region.

Dual-energy CT enterography in evaluation of Crohn's disease: the role of virtual monochromatic images.

Purpose: To assess the use of virtual monochromatic images (VMI) for discrimination of affected and non-affected bowel walls in patients with Crohn's disease (CD) as well as to compare mural enhancement between patients with and without CD.

Materials And Methods: This retrospective study included 61 patients (47 with CD, 14 without CD). Attenuation value (AV), signal-to noise ratio (SNR), and contrast-to-noise ratio (CNR) were obtained at VMI energy levels from 40 to 110 keV in 10 keV increment.

Correlation of liver-to-spleen ratio, lung CT scores, clinical, and laboratory findings of COVID-19 patients with two consecutive CT scans.

Purpose: Given the lack of information about abdominal imaging findings and correlation with clinical features of COVID-19, we aimed to evaluate the changes in hepatic attenuation during the course of disease. Our aim was to correlate the liver-to-spleen ratio (L/S), clinical, laboratory findings, and lung CT scores of patients with COVID-19 who had two consecutive chest CTs.

Methods: A retrospective search was performed between March 1, 2020 and April 26, 2020 to identify patients who had positive RT-PCR tests and two unenhanced chest CTs.

Characterization of adrenal lesions on chemical shift MRI: comparison of 1.5 T and 3 T MRI.

Purpose: To compare three chemical shift MRI techniques [two-dimensional (2D) dual gradient echo (dGRE), 3D VIBE, and 3D VIBE-Dixon] at 3 T and 2D dGRE technique at 1.5 T to assess their ability of detecting microscopic fat in adrenal adenomas and differentiating between adenomas and non-adenomas.

Methods: Seventy-eight patients with 97 lesions (78 adenomas, 19 non-adenomas) underwent both 1.

Results of 1001 liver transplantations in 23 years: Ege University experience.

Background/aims: Liver transplantation (LT) is now the standard of care for most end-stage liver diseases. Over the next 30 years, advances in medicine and technology will greatly improve the survival rates of patients after this procedure. The aim of the present study was to analyze retrospectively the results of 1001 patients withLT.

The effects of chemoradiotherapy on recurrence and survival in locally advanced rectal cancers with curative total mesorectal excision: a prospective, nonrandomized study.

Background: There are only two prospective, randomized studies comparing preoperative long-term chemoradiotherapy and postoperative chemoradiotherapy in locally advanced rectal cancer (LARC); however, conflicting results in terms of locoregional recurrence (LR) and survival rates have been reported. This prospective study aims to compare the effects of preoperative versus postoperative chemoradiotherapy on recurrence and survival rates in LARC patients.

Methods: From January 2003 to January 2016, a total of 336 eligible patients who were clinically diagnosed with LARC (T-T tm or node-positive disease) were prospectively assigned into preoperative chemoradiotherapy (n = 177) and postoperative chemoradiotherapy (n = 159) groups.

Pazopanib: a novel treatment option for aggressive fibromatosis.

Background: Aggressive fibromatosis (AF), also known as desmoid tumor, is an uncommon soft tissue neoplasm. AF does not metastasize, but it is locally invasive and its propensity for recurrence after conservative resection is well documented. No effective cytotoxic treatment has been reported, hence there is a need for novel treatment strategies.

Renal sinus fat invasion and tumoral thrombosis of the inferior vena cava-renal vein: only confined to renal cell carcinoma.

Epithelioid angiomyolipoma (E-AML), accounting for 8% of renal angiomyolipoma, is usually associated with tuberous sclerosis (TS) and demonstrates aggressive behavior. E-AML is macroscopically seen as a large infiltrative necrotic tumor with occasional extension into renal vein and/or inferior vena cava. However, without history of TS, renal sinus and venous invasion E-AML would be a challenging diagnosis, which may lead radiologists to misinterpret it as a renal cell carcinoma (RCC).

Primary mesenchymal liver tumors: radiological spectrum, differential diagnosis, and pathologic correlation.

With the exception of hemangioma, benign or malignant primary mesenchymal tumors of the liver are seldom encountered. The aim of this review was to discuss the clinical, histopathological, and imaging features of liver hemangiomas (cavernous, capillary, and sclerosed types), liver lipoma, angiomyolipoma, mesenchymal hamartoma, neurofibroma, infantile hemangioendothelioma, epithelioid hemangioendothelioma, myofibroblastoma, angiosarcoma, malignant fibrous histiocytoma, undifferentiated embryonal sarcoma, and nested stromal tumor. In most of these rare liver tumors, radiological findings obtained by cross-sectional imaging may reflect the characteristic pathologic features required for differential diagnosis; however, definitive diagnosis should be confirmed using histopathological examination.

Evaluation of treatment response of chemoembolization in hepatocellular carcinoma with diffusion-weighted imaging on 3.0-T MR imaging.

Purpose: To assess the treatment response of hepatocellular carcinoma (HCC) after transarterial chemoembolization with diffusion-weighted imaging and dynamic contrast-enhanced magnetic resonance (MR) imaging with a 3-T system.

Materials And Methods: Between February 2010 and November 2010, 74 patients were treated with chemoembolization in our interventional radiology unit. Twenty-two patients (29%) who had liver MR imaging including diffusion and dynamic contrast-enhanced MR imaging on a 3-T system before and after transarterial chemoembolization were evaluated retrospectively.

Huge endometriosis presenting like an ovarian tumor: CT appearance.

A 32-year-old female with a clinical history of abdominal swelling underwent CT of the abdomen. A huge biloculated cystic mass with a mural nodule in the abdominal and pelvic region was seen. The lesion showed slightly homogeneous enhancement.

Hydatid disease involving some rare locations in the body: a pictorial essay.

Hydatid disease (HD) is an endemic illness in many countries, and it poses an important public health problem that's influenced by peoples' socioeconomic status and migration that spreads this disease. Although rare, it may occur in any organ or tissue. The most common site is the liver (59-75%), followed in frequency by lung (27%), kidney (3%), bone (1-4%) and brain (1-2%).

Role of contrast-enhanced 3D magnetic resonance portography in evaluating portal venous system compared with color Doppler ultrasonography.

Aim: The purpose of this study was to evaluate the capability of contrast-enhanced three-dimensional (3D) MR portography in detecting abnormal findings associated with the portal venous system compared with the results of color Doppler ultrasonography (CDUS).

Materials And Methods: MR portography findings were retrospectively compared with the results of CDUS examinations in 161 patients, who were suspected of having portal venous system abnormalities. Portal venous vessels were divided into main 5 groups including the main portal vein, its left and right intrahepatic branches, splenic vein and superior mesenteric vein.

Contrast agents used in MR imaging of the liver.

Several categories of contrast agents with different biodistributions are currently available for magnetic resonance imaging of the liver. They improve lesion detection and characterization by increasing lesion-liver contrast. These agents include nonspecific extracellular gadolinium chelates, reticuloendothelial system- specific iron oxides, hepatocyte-selective agents, and combined perfusion and hepatocyte-selective agents.

Unusually large cisterna chyli: US and MRI findings.

We report a rare appearance of cisterna chyli appearing as a giant cystic structure on routine abdominal ultrasonography (US). Diagnosis was established with color Doppler US and after magnetic resonance imaging. This report describes an unusual appearance of the cisterna chyli that radiologists should be familiar with, especially on the routine conventional gray-scale US to avoid mistaking it for a pathologic condition.

Pancreatic Castleman's tumour: an unusual case.

We present an uncommon case of hyaline vascular type Castleman's disease mimicking a pancreatic tumour. A 56-year-old woman with constitutional symptoms was investigated. Pre-operative interventions failed to produce a definitive diagnosis.

[Primary hepatic actinomycosis: a case of inflammatory pseudotumor (case report)].

Actinomycosis is an uncommon chronic infection in which primary liver involvement accounts for 5% of all actinomycotic infections. Abdominal actinomycosis is a severe and progressive peritoneal infection due to an anaerobic gram-positive bacterium, Actinomyces israelii. The presence of a long-standing intrauterine device (IUD) is a well-known risk factor in young women.

Regenerative nodule mimicking hepatocellular carcinoma in a cirrhotic child due to hepatitis B: an imaging dilemma.

Viral hepatitis B, post-hepatitic cirrhosis and hepatocellular carcinoma (HCC) is the classical sequence of events in hepatitis B virus (HBV) infected children and serum Alpha-fetoprotein (AFP) and ultrasound (USG) screening is recommended during follow up. We present a 13-yr-old girl with cirrhosis related to chronic HBV infection with normal AFP level and a 4 cm mass appearance by USG. Contrast spiral evaluation computed tomography (CT) study demonstrated a single mass located at 8th segment of the liver.