منابع مشابه
Handedness and the side on which pharyngeal pouches occur.
Pharyngeal pouches present far more commonly on the left side of the neck than the right. Sixty one patients with a history of pharyngeal pouch were questioned about their handedness and about whether they had had symptoms or signs predominantly on one side of the neck before receiving treatment. There was a highly significant association between handedness and pharyngeal pouches on the opposit...
متن کاملThe pharyngeal pouches and clefts: Development, evolution, structure and derivatives.
The pharyngeal arches form the face and neck of the developing embryo. The pharyngeal tissue is divided into distinct arches by the formation of clefts and pouches in between the arches. These clefts and pouches form at the juxtaposition between the ectoderm and endoderm and develop into a variety of essential structures, such as the ear drum, and glands such as the thymus and parathyroids. How...
متن کاملEndoscopic stapling of pharyngeal pouches in patients from the Yorkshire region.
The treatment of pharyngeal pouches by endoscopic stapling diverticulotomy has gained popularity over the last few years. We assessed the results of this technique in 44 patients by means of a clinical questionnaire and by reviewing case records. Thirty-six (82 per cent) patients commenced oral intake within 18 hours of the procedure and 37 (84 per cent) patients were discharged within 48 hours...
متن کاملtbx2a Is Required for Specification of Endodermal Pouches during Development of the Pharyngeal Arches
Tbx2 is a member of the T-box family of transcription factors essential for embryo- and organogenesis. A deficiency in the zebrafish paralogue tbx2a causes abnormalities of the pharyngeal arches in a p53-independent manner. The pharyngeal arches are formed by derivatives of all three embryonic germ layers: endodermal pouches, mesenchymal condensations and neural crest cells. While tbx2a express...
متن کاملThe role of actin cables in directing the morphogenesis of the pharyngeal pouches.
The pharyngeal arches are separated by endodermal outpocketings, the pharyngeal pouches. These are structures of considerable importance; they are required to segregate the mesenchymal populations of each arch and to induce the formation of arch components, and they generate specific derivatives, including the parathyroid and the thymus. The pharyngeal pouches are first evident as localised sit...
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ژورنال
عنوان ژورنال: The Lancet
سال: 1848
ISSN: 0140-6736
DOI: 10.1016/s0140-6736(02)88150-8