У нас вы можете посмотреть бесплатно Chordoma - aggressively growing tumor in CT and MRI sequence english или скачать в максимальном доступном качестве, видео которое было загружено на ютуб. Для загрузки выберите вариант из формы ниже:
Если кнопки скачивания не
загрузились
НАЖМИТЕ ЗДЕСЬ или обновите страницу
Если возникают проблемы со скачиванием видео, пожалуйста напишите в поддержку по адресу внизу
страницы.
Спасибо за использование сервиса ClipSaver.ru
The Chordoma is a rare, locally slowly aggressive growing tumor which arises from remnants of the notochord. In 35% of cases it is localised in the clivus. Another frequently occurance is in the sacral region which is more common in children around the 6th year of life. With the clivus chordoma the peak incidence is around the 50th year of life. In the CT you find an expansible, multilobulated, sharply defined mass in the midline with lytic bone destruction and intratumoral calcifications as well as variable contrast enhancement. With MRI the mass presents with intermediate to low signal in the T1 weighted image. Smaller bright areas may be present due to intratumoral hemorrhage or mucus. In the T2 weighted image the mass is very bright due to its high water content. Small areas with low signal can present calcifications, old blood products or mucus. After contrast application there is a moderate to intensive enhancement. On the sagittal plane the mass indents the pons. For differential diagnosis you might think of an invasis pituitary macroadenoma, a chondrosarcoma, plasmozytoma or an bony metastasis of the scull as well as an aggressiv growing meningeoma. The symptoms of a clivus chordoma can be headache, diplopia and signs of a cranial nerve affection like trigeminal neuralgia. The therapy is surgery although in most of the cases a complete resection is impossible so that it is followed by radiotherapy. The prognosis depends on the histological type. The chondroid type has a mean survival time of 16 years where is the very seldom dedifferentiated type has a prognosis of less than a year. In general the mean survival time is between 4 -- 7 years.