Impact of injectable chitosan cryogel microspherescaffolds on differentiation and proliferation of adiposederived mesenchymal stem cells into fat cells.

Difficulty in the clinical practice of stem cell therapy is often experienced in achieving desired target tissue cell differentiation and migration of stem cells to other tissue compartments where they are destroyed or die. This study was performed to evaluate if mesenchymal stem cells (MSCs) may differentiate into desired cell types when injected after combined with an injectable cryogel scaffold and to investigate if this scaffold may help in preventing cells from passing into different tissue compartments. MSCs were obtained from fat tissue of the rabbits as autografts and nuclei and cytoplasms of these cells were labeled with BrdU and PKH26.

Ischiofemoral space dimensions for ischiofemoral impingement: is it different in children?

Objective: This study intended to analyze alterations in ischiofemoral space (IFS) dimensions in normal children between the ages of 1 and 18 years for the ischiofemoral impingement.

Materials And Methods: This study retrospectively focused on computed tomography images of 360 hips of 180 (90 boys and 90 girls) pediatric subjects (mean age: 9.50 ± 5.

Retrospective analysis of whole-body multislice computed tomography findings taken in trauma patients.

Objectives: Using whole-body multislice computed tomography (MSCT) excessively or with irrelevant indications can be seen in many centers. The aim of this study was to analyze retrospectively the MSCT findings in trauma patients admitted to the emergency department.

Methods: Records of the patients who have applied to the emergency department due to blunt trauma in a 12 month period and whose whole body MSCT images have been taken, were evaluated using the "Nucleus Medical Information System".

The diagnostic value of diffusion-weighted imaging and the apparent diffusion coefficient values in the differentiation of benign and malignant breast lesions.

Introduction: The goal of our study was to evaluate the diagnostic efficacy of diffusion-weighted imaging (DWI) in the differentiation of benign and malignant breast lesions.

Methods: Between June 2012 and March 2013, 60 patients with 63 lesions (age range 29-70 years, mean age 48.6 years) were included in our study.

Nonodontogenic mandibular lesions: differentiation based on CT attenuation.

Mandibular lesions are classified as odontogenic and nonodontogenic based on the cell of origin. Odontogenic lesions are frequently encountered at head and neck imaging. However, several nonodontogenic pathologies may also involve mandible and present further diagnostic dilemma.

Abdominal nonparenchymatous cystic lesions and their mimics in children.

Abdominal cystic lesions in children may originate from parenchymatous organs or from nonparencyhmatous structures. Although these lesions have well-described imaging features, proper diagnosis usually depends on the accurate determination of the origin of the lesion. Because large lesions may resemble each other it is difficult to identify the site of origin, which results in a diagnostic dilemma.

An uncommon case of neurofibromatosis type 2: a tribute to the intracranial calcifications.

Neurofibromatosis Type 2 (NF2) is a genetic disorder associated with schwannomas, meningiomas, and ependymomas. Intracranial calcifications, either tumoral or non-tumoral, are relatively lesser known features of NF2. Here, we present a case of NF2, in which the diagnosis was suspected due to the presence of choroid plexus and subependymal calcifications, although no obvious schwannoma or meningioma was detected initially on standard computed tomography or magnetic resonance imaging.

Radioguided occult lesion localization versus wire-guided localization for non-palpable breast lesions: randomized controlled trial.

Aim: This prospective randomized clinical study was conducted to compare radioguided occult lesion localization (ROLL) with wire-guided localization to evaluate optimum localization techniques for non-palpable breast lesions.

Methods: A total of 108 patients who were undergoing an excisional biopsy for non-palpable breast lesions requiring pathologic diagnosis were randomly assigned to the ROLL group (n = 56) and wire-guided localization group (n = 52). In the study, patients' characteristics, radiological abnormalities, radiological technique of localization, localization time, operation time, weight of the excised specimen, clearance margins, pathological diagnosis and perioperative complications were assessed.

Choanal polyp originating from the cribriform plate.

A choanal polyp (CP) can be defined as a solitary soft tissue lesion that passes through the sinus ostia and extends toward the choana. Although a CP usually originates from the maxillary sinus, unusual origins have been reported. Diagnosis of a CP is made by endoscopic and radiologic examinations.

An unusual cause of intestinal obstruction: abdominal cocoon.

Objective: abdominal cocoon is characterized by total or partial encasement of the small bowel by a thick fibrotic membrane, leading to mechanical obstruction. Here, we report two cases of abdominal cocoon; both patients presented with symptoms of intestinal obstruction.

Conclusion: We describe the CT and sonographic features of this disease, emphasizing the role of MDCT, and discuss the preoperative diagnostic clues.

Tracheal web: presentation of a case with uncommon features.

Postintubation tracheal web is a rarely encountered complication of endotracheal intubation. Although few of them remain asymptomatic until diagnosed accidentally, most of them present with symptoms of acute airway obstruction and even death. We present here a case of postintubation tracheal web with uncommon features, including a very long delay in diagnosis despite a 99% obstruction of the tracheal lumen.

Bronchoscopy is associated with decreased mesenteric arterial flow.

Background: We hypothesized that fiberoptic bronchoscopy can contribute to mesenteric ischemia and bacterial translocation.

Objective: To test this hypothesis we investigated in patients undergoing bronchoscopy mesenteric blood flow and markers in association with ischemia reperfusion injury.

Patient: Forty-seven consecutive patients requiring diagnostic fiberoptic bronchoscopy were studied.

A case of missing mitral valve leaflet: radiological detection.

Intravascular foreign bodies may be introduced into the circulation as a complication of minimally invasive or interventional techniques, or during cardiac valve surgery. Prosthetic heart valve leaflets have been rarely described as intravascular foreign bodies. Herein we report a case of prosthetic heart valve leaflet embolization to the aortic bifurcation with computed tomography and ultrasonography findings, and the importance of radiographic imaging in the localization of missing leaflet fragment is pointed out.

Inspiratory and expiratory HRCT findings in Behçet's disease and correlation with pulmonary function tests.

Purpose: The purpose of our study was to describe the pulmonary parenchymal changes of Behçet's disease using high-resolution computed tomography and to correlate them with pulmonary function tests.

Materials And Methods: Thirty-four patients with Behçet's disease (18 men, 16 women), 3 of whom were symptomatic, were included as the study group. Four of 34 patients were smokers.

Cough headache: frequency, characteristics and the relationship with the characteristics of cough.

Cough headache (CH) is a relatively rare, but an important complication of cough. The aim of this cross-sectional clinical study was to evaluate the frequency, characteristics and etiology of CH among the patients referred to our Outpatient Department with the complaint of cough, and to investigate the relationship between their cough and headache characteristics. We evaluated 96 females and 69 males, a total of 165 patients with cough.

[A simple positioning device for radiographic imaging of the patellofemoral joint: a technical note].

The informative value of axial radiographs of the patellofemoral joint is highly dependent on application techniques and knee positioning. We developed a simple device that enables an appropriate and easy positioning. With the use of this device, patellofemoral axial radiographs can be obtained at 30 degrees of knee flexion.

Diagnostic value of renal parenchymal density difference on unenhanced helical computed tomography scan in acutely obstructing ureteral stone disease.

Objectives: To evaluate the diagnostic value of the renal parenchymal density difference, detected using unenhanced helical computed tomography, as a secondary sign of acute obstruction due to a ureteral stone.

Methods: Fifty-five patients with acute flank pain, in whom a ureteral stone was detected on the symptomatic side using unenhanced helical computed tomography, and 22 control subjects with no urinary stone disease were included in this prospective study. Computed tomography was performed, starting from the upper poles of the kidneys down to the base of the urinary bladder.

Transient partial amnesia complicating cardiac and peripheral arteriography with nonionic contrast medium.

The aim of this study was to present a case of disruption of the blood-brain barrier during the coronary and lower extremity angiographies with radiological and clinical findings. This condition was secondary to intraarterial use of a nonionic, monomeric contrast medium. A total of 450 cc contrast media was used.

A case of missing mitral valve leaflet: radiological detection.

Intravascular foreign bodies may be introduced into the circulation as a complication of minimally invasive or interventional techniques, or during cardiac valve surgery. Prosthetic heart valve leaflets have been rarely described as intravascular foreign bodies. Herein we report a case of prosthetic heart valve leaflet embolization to the aortic bifurcation with computed tomography and ultrasonography findings, and the importance of radiographic imaging in the localization of missing leaflet fragment is pointed out.

The relationship between presbycusis and mastoid pneumatization.

Presbycusis is defined as the natural hearing loss accompanying aging, caused by degenerative changes in the inner ear. The etiology of presbycusis is uncertain. However, it would appear that a complex genetic cause is most likely.

HRCT evaluation of the accessory fissures of the lung.

Introduction: The purpose of this study was to classify the accessory fissures of the lung and to assess their frequency by using high-resolution CT.

Methods And Patients: HRCT scans of 115 patients were prospectively reviewed. 1 mm thin sections were obtained at 10 mm intervals with a scan time of 1.

Diagnostic value of sonohysterography in the evaluation of submucosal fibroids and endometrial polyps.

Aims: To evaluate the diagnostic value of sonohysterography in the evaluation of submucosal fibroids and endometrial polyps.

Methods: Thirty-two women whose preliminary transvaginal ultrasound suggested endometrial abnormality underwent sonohysterography. The findings were then compared with histopathological results.

Open-mouth versus closed-mouth radiographs of the nasopharynx in the evaluation of nasopharyngeal airway obstruction.

The open-mouth and closed-mouth nasopharyngeal airway radiographs of 53 children, whose symptomatology score was concordant with nasopharyngeal airway obstruction that may be due to adenoidal enlargement, were taken and, for each radiograph, nasopharyngeal airway/soft palate (NA/SP) ratio was measured and graded using the method of Cohen and Konak. According to the statistical analysis, since closed-mouth views correlated better with the symptomatology score than the open-mouth views, if a radiological measurement is needed to evaluate the nasopharyngeal airway obstruction, closed-mouth views can be chosen.