Bilateral Giant Supraclinoid Carotid Aneurysms Causing Obstructive Hydrocephalus: Case Report and Literature Review.

Intracranial aneurysms are common conditions that are usually asymptomatic and found incidentally, yet they can rupture and lead to subarachnoid hemorrhage, in addition to causing mass effects, especially with larger aneurysms. Bilateral supraclinoid aneurysms are extremely rare and were reported in only two instances. These aneurysms can cause a range of symptoms and require careful management.

Cranioplasty for Skull Defects With Polypropylene Abdominal Wall Mesh.

Objective: Cranioplasty is a well-established common surgery in the practice of neurosurgery and craniofacial surgery. In young patients, complete skull defect closure by bone splitting may be troublesome due to the difficulty to obtain enough bone area. In such cases, sometimes the authors need to use allografts, which may not be widely available in rural practice.

Extra-axial cerebellopontine angle cavernoma: A case report and review of literature.

Background: Extra-axial cavernomas at the cerebellopontine angle (CPA) are rare clinical entity that can radiologically mimic several lesions encountered at this location.

Case Description: A 36-year-old female patient referred to our emergency service with acute decreased level of consciousness and vomiting. Neurological examination showed Glasgow Coma Scale of 12 with downbeat nystagmus of the right eye.

Primary Posterior Fossa Hydatid Cyst in a Child.

A 7-year-old boy referred to our emergency department complaining of headache, nausea, vomiting, dizziness, generalized fatigue, ataxia and diplopia. Neurological exam showed bilateral papilledema and ataxic gait. Routine blood test, plain chest x-ray and abdominal ultrasonography were normal.

Cranioplasty for Skull Defect With Polypropylene Abdominal Wall Mesh.

Cranioplasty is a routine procedure in the practice in neurosurgery and craniofacial surgery. For the closure of the cranial defect, it may be difficult or impossible to split the bone sufficiently to obtain enough bone for complete closure of the defect in younger children. Thus, sometimes there is the need to use allografts, which may not be widely available in rural practice.

Castleman Disease: An Unusual Cause of an Isolated Neck Mass.

A 15-year old female patient was complaining from swelling in the left side of the neck since 3 months. Physical examination showed palpable and mobile left supraclavicular neck mass in the carotid triangle, uvula deviation to the left side and normal vocal cords position and function. Neck imagings showed well-defined, well-encapsulated left neck mass in the left carotid sheath pushing the internal jugular vein anteriorly and the common carotid artery posteriorly.

DNA Cytometry for Differentiation Between Low- and Medium-grade Dysplasia in Intraductal Papillary Mucinous Neoplasms.

Background/aim: The indication for resection of cystic pancreatic lesions is usually performed by sectional imaging criteria, such as the Sendai criteria. The aim of this study was to analyze a possible correlation between DNA cytometry and Sendai criteria for the differentiation between low-grade intraductal papillary mucinous neoplasms (IPMN-A) and medium-grade dysplasia (IPMN-B).

Materials And Methods: Histopathological analysis, DNA index and preoperative Sendai criteria were determined in 16 patients who underwent pancreatic resection for IPMN.

The DNA index as a prognostic tool in hilar cholangiocarcinoma.

Background And Objectives: Due to the devastating prognosis of patients suffering from hilar cholangiocarcinoma (HCCA) valid prognostic factors are urgently needed to guide treatment decisions in a personalized concept. The aim of this study was to analyze the predictive value of the DNA index in a large single-center cohort of patients undergoing resection of HCCA.

Methods: A total of 154 patients who underwent resection of HCCA were included in this prospective study.

Prognostic significance of DNA cytometry for adjuvant therapy response in pancreatic cancer.

Background And Objectives: The continuous progress in treatment options for pancreatic adenocarcinoma has lead to a re-evaluation of prognostic markers. In this study the prognostic relevance of DNA Index and classical histopathological parameters with regard to disease-free (DFS) and overall survival (OS) was analyzed within the CONKO-001 patient population.

Methods: One hundred forty three fresh-frozen paraffin-embedded tissue samples of the resected tumor specimen of the CONKO-001 patient population were available for DNA index analysis to evaluate its impact on patient outcome.

Patient and tumour biology predict survival beyond the Milan criteria in liver transplantation for hepatocellular carcinoma.

Background: Patients with hepatocellular carcinoma (HCC) beyond the Milan criteria are not considered for liver transplantation (LT) in many centres; however, LT may be the only treatment able to achieve long-term survival in patients with unresectable HCC. The aim of this study was to assess the role of recipient age and tumour biology expressed by the DNA index in the selection of HCC patients for LT.

Patients: Clinicopathological data of 364 patients with HCC who underwent LT between 1989 and 2010 were evaluated.

Neuronavigation-guided endoscopic endonasal resection of extensive skull base mucormycosis complicated with cerebral vasospasm.

A 24-year-old woman presented with double vision since 6 months. Examination revealed left eye ptosis and bilateral abducens nerve palsy. Brain computed tomographic scan and magnetic resonance imaging revealed a bone-eroding mass lesion located in the middle skull base, occupying the posterior ethmoidal cells, the planum sphenoidale, the sphenoid sinus, the lateral recesses of the sphenois sinus, the pterygoid apexes, and the middle and lower clivus, with compression of the inferior wall of the cavernous sinus and the parasellar and paraclival parts of the internal carotid artery.

DNA index is a strong predictive marker in intrahepatic cholangiocarcinoma: the results of a five-year prospective study.

Purpose: Predictive markers for risk stratification among patients with intrahepatic cholangiocarcinoma (IHC) are still lacking. Therefore, recent studies have focused on identifying the biological aspects of tumors that can provide more information about the tumor aggressiveness. The aim of this study was to prospectively evaluate the prognostic potential of the DNA index in patients undergoing liver resection for IHC.

Increased T-helper 2 cytokines in bile from patients with IgG4-related cholangitis disrupt the tight junction-associated biliary epithelial cell barrier.

Background & Aims: IgG4-related cholangitis is a chronic inflammatory biliary disease that involves different parts of the pancreatobiliary system, but little is known about its mechanisms of pathogenesis. A T-helper (Th) 2 cell cytokine profile predominates in liver tissues from these patients. We investigated whether Th2 cytokines disrupt the barrier function of biliary epithelial cells (BECs) in patients with IgG4-related cholangitis.

DNA index as a strong prognostic factor in patients with adenocarcinoma of the pancreatic head: results of a 5-year prospective study.

Objectives: To improve the devastating prognosis of pancreatic cancer; the identification of reliable predictive factors is crucial. The aim of the present study was to prospectively assess the prognostic value of DNA index determined by image cytometry as an predictive factor in pancreatic head cancer.

Methods: The DNA ploidy and the DNA index of 61 patients were evaluated by DNA image cytometry and were found to be correlated, as well as standard histopathologic parameters, with patient survival.

Prognostic significance of the DNA-index in liver transplantation for hepatocellular carcinoma in cirrhosis.

Objective: This study was conducted to evaluate the prognostic significance of the tumor DNA index in patients receiving liver transplantation for hepatocellular carcinoma (HCC) in cirrhosis.

Background: In patients suffering from HCC in cirrhosis, the current selection for liver transplantation does not optimally achieve the goal to simultaneously maximize the number of viable transplant candidates and reject the smallest number of those who could have benefited. This is the first report on the prognostic significance of the tumor DNA index.

EUS-guided FNA of solid pancreatic masses: high yield of 2 passes with combined histologic-cytologic analysis.

Background: EUS-guided FNA (EUS-FNA) is an established tissue-acquisition technique, with most studies concentrating on cytologic analyses of specimens, with only few data existing on histologic assessment.

Objective: To assess the sensitivity of a combined analysis of histologic followed by cytologic tissue diagnosis.

Design: A retrospective 3-center study.

Prospective pilot evaluation of a new needle prototype for endoscopic ultrasonography-guided fine-needle aspiration: comparison of cytology and histology yield.

Objectives: Endoscopic ultrasonography (EUS) with the adjunct of EUS-guided fine needle aspiration has become an important diagnostic modality in gastroenterologic oncology. EUS-guided fine needle aspiration mainly relies on cytology; data are scarce that compare cytology and histology. While testing a 22-gauge prototype needle, we prospectively compared the yield for both.

Extended surgical resection for xanthogranulomatous cholecystitis mimicking advanced gallbladder carcinoma: A case report and review of literature.

Xanthogranulomatous cholecystitis (XGC) is a destructive inflammatory disease of the gallbladder, rarely involving adjacent organs and mimicking an advanced gallbladder carcinoma. The diagnosis is usually possible only after pathological examination. A 46 year-old woman was referred to our center for suspected gallbladder cancer involving the liver hilum, right liver lobe, right colonic flexure, and duodenum.

In vivo assessment of the tolerance dose of small liver volumes after single-fraction HDR irradiation.

Purpose: To prospectively assess a dose-response relationship for small volumes of liver parenchyma after single-fraction irradiation.

Methods And Materials: Twenty-five liver metastases were treated by computed tomography (CT)-guided interstitial brachytherapy. Magnetic resonance imaging was performed 1 day before and 3 days and 6, 12, and 24 weeks after therapy.

Steroid administration before partial hepatectomy with temporary inflow occlusion does not influence cyclin D1 and Ki-67 related liver regeneration.

Background And Aims: If temporary inflow occlusion is required during liver resection, the postoperative course might be complicated by ischaemia-reperfusion injury. Steroids protect against ischaemia-reperfusion injury; however, due to its anti-proliferative character concerns exist on its use on liver regeneration after resection. We investigated the effects of methylprednisolone on hepatocyte proliferation after partial hepatectomy with temporary inflow occlusion.

Microscopic tumor cell dissemination in gastric cancer.

Purpose: There is still much controversy surrounding the prognostic significance of microscopic tumor cell dissemination in gastric cancer and its correlation with histopathologic parameters. We herein investigate such dissemination, predominantly restricted to the subserosa, in patients with gastric cancer.

Methods: Intraoperative bone marrow aspiration was done in 26 patients undergoing resection of gastric carcinoma.

DNA analysis of cholangiocarcinoma cells: prognostic and clinical importance.

Introduction: The clinical value of established prognostic factors seems to be limited since they fail to predict reliably survival of patients after resection of cholangiocarcinoma. DNA ploidy reflecting irregularities of chromosome number and content might be an alternative predictor. In this study, we evaluated the DNA ploidy as a prognostic factor for survival of patients after resection of cholangiocarcinoma.

Accumulation of crystal deposits in abdominal organs following perfusion with defrosted University of Wisconsin solutions.

Previous studies reported on both visible and invisible particles in University of Wisconsin (UW) solutions. Those particles originated from components of the bags. In recent clinical observations we noticed macroscopically visible, indissoluble particles in UW bags reaching subzero temperatures during transportation of organs and preservation solutions.

DNA ploidy is a valuable predictor for prognosis of patients with resected renal cell carcinoma.

Background: Renal cell carcinomas (RCCs) are heterogeneous and include several distinct entities with a range of biologic and clinical behaviors from relatively favorable to extremely aggressive. The heterogeneity leads to unpredictable outcome and survival. DNA ploidy is a relatively new predictor differentiating diploid from aneuploid tumor cells according to regular or irregular DNA content.