Menstrual Cycle-Related Changes in Women with Schizophrenia: A Resting-State fMRI Study.

Introduction: Different influences of ovarian hormones in schizophrenia (SCZ) have been reported, but no study to date has assessed their effects on the brain dynamics at rest. The present study aimed to examine the hormonal and clinical changes related to the menstrual cycle and alterations in the resting-state functional connectivity (RS-FC) depending on cycle phase and/or hormonal fluctuations in SCZ.

Method: This study was conducted based on both between- and within-subject experimental designs, including 13 clinically stable female patients with SCZ (32 ± 7.

Limited positive predictive value of diffusion tensor tractography in determining clinically relevant white matter damage in brain stem cavernous malformations: A retrospective study in a single center surgical cohort.

Purpose: Diffusion tensor tractography (DTT) might reflect the postoperative clinical outcome of the patients with brain stem (BS) tumors correlating well with the neurological symptoms, but cavernous malformation (CM) is a hemorrhagic tumor prone to artifacts that may limit DTT. We set out to determine the correlation of DTT findings with the neurological examination before and after surgical resection in patients with BSCMs.

Materials And Methods: DTT findings were evaluated bilaterally for fiber tract displacement or deviation, deformation and interruption in every patient before and after the surgery.

The incidence and most common levels of thoracic degenerative disc pathologies.

Objectives: In this study, we aimed to describe and characterize the incidence of thoracic degenerative disc pathologies, bulging/herniation, and the most common affected levels.

Patients And Methods: Between January 2008 and May 2012, a total of 195 patients (109 females, 86 males; mean age 43.5 years; range, 15 to 74 years) who were admitted with the complaint of dorsalgia and underwent magnetic resonance imaging (MRI) of the thoracic vertebral column were included in the study.

Evaluation of Iron Deposition in the Adrenal Glands of β Thalassemia Major Patients Using 3-Tesla MRI.

Background: Beta-thalassemia major (β-TM) patients need blood transfusions, which result in iron deposition. To regulate chelation therapy, iron load has to be measured. With MRI, the amount of signal loss and T2* decay time shortening are used for iron quantification.

The Daily Resistive Index measurement useful tool in the estimation of the optimal time interval between two Shock Wave Lithotripsy sessions.

Objective: : To monitor the impact of Shock Wave Lithotripsy (SWL) on the renal resisive index (RI) and to investigate the potential of the RI measurement for the estimation of the optimal duration between 2 SWL sessions.

Material And Methods: Thirty patients with single pelvis renalis stone were included. Participitants were grouped according to their age as group 1 (<40 years, mean age 36.

Respiratory epithelial adenomatoid hamartoma: a rare nasopharyngeal mass lesion.

Respiratory epithelial adenomatoid hamartoma (REAH) is a rare and nonneoplastic lesion of upper respiratory tract characterized by an abnormal mixture of tissues which are peculiar to the involved anatomic region. The most common site reported is nasal cavity and its nasopharyngeal origin is extremely rare. The lesion can be confused with a variety of benign and malignant entities.

Brucellar spondylodiscitis: comparison of patients with and without abscesses.

Brucellosis is an important cause of spondylodiscitis in endemic areas. Brucellar spondylodiscitis is a serious complication because of its association with abscess formation. Prospective studies comparing patients with and without abscesses are lacking.

Primary osteosarcoma arising from subcutaneous tissue: 5-year follow-up.

Extraskeletal osteosarcomas are extremely rare, high-grade neoplasms. Approximately 300 cases have been reported in the literature, with a 5-year survival of around 25%-37%. Extraskeletal osteosarcomas frequently arise from lower-extremity, deep soft tissue planes, including hemorrhagic, necrotic areas.

CT and MRI findings of developmental abnormalities and ectopia varieties of the thyroid gland.

Ectopic thyroid tissue may be observed anywhere from the tongue base to the lower neck. It is rarely seen in the mediastinum and abdominal cavity. Computed tomography and magnetic resonance imaging are very sensitive for detection and localization of ectopic thyroid tissue.

A new variation: An anterior cruciate ligament attached to the accessory ossicle.

Anatomic variations of the anterior cruciate ligament (ACL) are very rare. The prevalence of congenital aplasia or hypoplasia of the ACL is 0.017 per 1,000 live births.

Partial achilles tendon rupture presenting with giant hematoma; MRI findings of 4 year follow up.

In the young population, spontaneous rupture of Achilles tendon is very rare. The big hematoma is also rare finding of the Achilles tendon partial rupture. It is usually seen with complete rupture.

Intraventricular glioblastoma multiforme: a pediatric case report.

Glioblastoma multiforme (GBM) is the most common lethal primary central nervous system tumor in adults. GBM is rarely seen in childhood and adolescence as primary intraventricular tumors. Few cases of solitary intraventricular GBM in adolescence have been reported to date.

[Differential diagnosis in cervical lymphadenopathies: efficacy of B-mode, color and power Doppler ultrasonography].

Objectives: Our purpose was to investigate cervical lymphadenopathies by using color Doppler spectral analysis and power Doppler ultrasonography methods as well as B-mode ultrasound and to classify them as malignant or benign lesions and to compare the results with the histopathological findings.

Patients And Methods: Sixty-nine lymph nodes of 69 patients were evaluated with color and power Doppler ultrasonography as well as B-mode ultrasonography. The shape and dimensions of the lymph nodes were assessed with B-mode ultrasonography; their vascularization pattern with power Doppler sonography and with color Doppler spectral analysis.

Third accessory (supernumerary) intrathoracic right rib.

Intrathoracic ribs are very rare congenital anomaly. We report a case of a third accessory intrathoracic rib located anterior to the normally developed right third rib in a 37-year-old man. Chest X-ray was not diagnostic.

A rare cause of exophthalmos: cemento-ossifying fibroma.

Cemento-ossifying fibroma is a benign fibroosseous lesion that contains fibrous tissue and calcified tissue resembling bone, cementum or both. It is frequently seen in the mandibula and maxilla, but it may rarely affect the ethmoid sinus. In this report, we presented computed tomography findings of an ossifying fibroma of the ethmoid sinus associated with exophthalmos.

[Frequency of vascular variations and anomalies accompanying intracranial aneurysms].

Purpose: Investigation of the sites of intracranial aneurysms and incidence of associated congenital variations or anomalies.

Materials And Methods: One hundred and ninety cerebral angiography examinations that were positive for aneurysm were evaluated retrospectively. Fourteen cases with vasospasm were excluded and the remaining 176 patients were assessed for the location of the aneurysm and co-incidental vascular variations and/or anomalies.