Appendix 2.qxd
ثبت نشده
چکیده
on the adult skull. The skull of the infant, and more so in the neonate by necessity, is immensely malleable, with the pliability of a milk carton. As a mainly cartilaginous structure at birth, the infant skull is ultraresponsive to direct molding pressures. The evolution of the neurocranium, through different growth centers, as well as the main sutural features of the skull and face are shown in Figure A2.1. The cranial bones are unconnected by sutures at birth and some of the cranial bones, known as composite bones (e.g. occiput, sphenoid, temporal) comprise several parts, allowing scope for the rapid growth of the brain (Carreiro 2003). The neonatal cranium is remarkably soft and unstructured, to allow folding of the cranium as it passes through the birth canal, where it is particularly vulnerable to deformation during the birth process (see Figs A2.2 and A2.3). Cranial distortion can be created by prebirth influences, via trauma (seat-belt compression during an automobile accident, for example) or if the womb is crowded (perhaps by a twin) or if chemical influences distort development (drugs, toxins and/or nutritional deficits). Far more likely to produce damage, however, are the influences of the powerful forces acting upon the supple skull during the birth process. Among the factors which can produce cranial damage during birth are (Biedermann 1992, 2001): 399
منابع مشابه
Does the Appendix Location Change During Pregnancy?
Background: Early diagnosis of appendicitis is important during pregnancy. Unlike omentom, cecum and appendix are not likely to be displaced by the growing uterus, so the concept of position change of the appendix during pregnancy is questionable. Objective: To determine the anatomical location of appendix during pregnancy. Methods: In a prospective study from October 1995 to March 1999, 291 w...
متن کاملPrimary Lymphoma of Appendix: Report of Three Cases and Review of Literature
Lymphomatous involvement of the appendix is rare and most of them are found accidentally from appendectomies to treat appendicitis. Here we report three cases of primary lymphoma of appendix of 10 year-old boy, 23-year-old man and 24-year-old woman that presented with abdominal pain to our hospital and the tumors were discovered during routine appendectomy for suspected "appendicitis". Our case...
متن کاملTHE APPENDIX, AN ACCEPTABLE SUBSTITUTE FOR ALL SEGMENTS OF BOTH URETERS: A REPORT OF TWO CASES
There are occasional reports of using the appendix to replace sections of the ureters, and to our knowledge, only a couple of them were in the left side. We used the appendix as a ureteral substitute in two cases in technically difficult parts, the upper left ureter and the first part of the right ureter. Follow-ups of8 years and 6 months in right and left side cases, respectively, are imp...
متن کاملبررسی فراوانی و پیش آگهی تومور کار سینوئید آپاندیس در آپاند کتومی های انجام شده در بیمارستان شهدای عشایر خرم آباد طی سالهای 1384-1379
Appendix carcinoid tumors are of rare cases. Their commonest place is in digestive system in appendix intensine and rectom respectively. They have no symptoms and they are detected along with laparotomy or inflation in appendix. The aim of the present study was to determine the frequency of carcinoid tumor in appendix and its prognosis in a period of 3 to 8 years in Shohada hospital in khorram...
متن کامل