翻訳と辞書 |
Pseudo gray platelet syndrome : ウィキペディア英語版 | Pseudo gray platelet syndrome Pseudo gray platelet syndrome was described by Cockbill, Burmester, and Heptinstall (1988) who reported a 25-year-old woman with a history of mild bruising and bleeding. Another case was described in Japan in 2002. ==Presentation== Bleeding time, activated partial thromboplastin time, prothrombin time, and euglobulin lysis time were within normal limits. There were no platelet antibodies detected. The patient's mother and two sisters had histories of easy bruising and heavy menstrual periods. A brother had no reported bleeding tendencies. Platelets from the mother, sisters, and a daughter were normal in number and appearance under the light microscope. Platelets in blood collected into EDTA tubes appeared gray and agranular compared with platelets from blood in citrate or heparin. The key finding is under electron microscopy, EDTA-exposed platelets showed extensive activation, with loss of storage granule contents and pseudopod formation. Platelet aggregation studies were normal. The abnormal platelet reaction following EDTA exposure is thought to be caused by a plasma factor, although not an immunoglobulin. The mechanism by which platelet activation occurs remains unknown. Few cases have been reported in the literature.
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Pseudo gray platelet syndrome」の詳細全文を読む
スポンサード リンク
翻訳と辞書 : 翻訳のためのインターネットリソース |
Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.
|
|