Osteoporosis effect on posterior mandible in preimplanted area for postmenopausal females using cone-beam computed tomography.

Background: Hormonal changes in women affect bone mineral density, especially during and postmenopausal years, which leads to susceptibility to osteoporosis which interfere with implantation.

Aims: This study aims to use cone-beam computed tomography (CBCT) viewer program to predict patients with osteoporosis which may decrease the success rate of implantation and to evaluate osteoporosis effect on the posterior mandible.

Settings And Design: This cross-sectional study consists of 60 Iraqi females who were divided into three groups: Group 1 consisted of 20 nonosteoporotic females aged 20-30 years as a control group, Group 2 consisted of 20 nonosteoporotic females aged 50 years and above, and Group 3 consisted of 20 osteoporotic females aged 50 years and above.

Evolution of unilateral perinatal arterial ischemic stroke on conventional and diffusion-weighted MR imaging.

Background And Purpose: Knowledge of the sequence of signal-intensity (SI) changes on conventional and diffusion-weighted MR imaging (DWI) following perinatal arterial ischemic stroke (PAIS) is limited, adding to the difficulty in timing the onset of PAIS. We hypothesized that SI changes seen on early sequential MR imaging following PAIS should follow a similar time course. The aim of this study was to evaluate the time course of SI changes by using a simple classification that could be assessed visually from conventional imaging and DWI in term-born neonates with symptomatic unilateral PAIS.

Intrauterine T-cell activation and increased proinflammatory cytokine concentrations in preterm infants with cerebral lesions.

Brain injury is common in very preterm infants, and intrauterine infection is a frequent antecedent of preterm birth. We examined the relation of cerebral damage to intrauterine antigen exposure and inflammation in 50 infants who were born at 23-29 weeks' gestation. Higher concentrations of cytokines (tumour necrosis factor alpha [TNF-alpha], and interleukins [IL], 1beta, 6, and 10) and CD45RO(+) T lymphocytes in umbilical blood predicted cerebral lesions detected by magnetic resonance imaging very soon after delivery.

Deletion of chromosome 18 with cardiomyopathy.

A female child is described with deletion of chromosome 18 and cardiomyopathy. The clinical features and treatment of the case are described, and the literature of chromosome 18 reviewed.

Periductal inflammation and cigarette smoke.

Background: Cigarette smoking has been implicated in the etiology of periductal mastitis. The mechanism by which it causes inflammation around the mammary ducts is unknown.

Study Design: Inflammation and dilatation of the mammary ducts were compared in two groups of women with proven histologic diagnoses of periductal mastitis (PDM, n = 133) and intraductal papilloma (IDP, n = 98) over an eight year period.