Ebook Thoracic imaging - Pulmonary and cardiovascular radiology (3/E): Part 2
➤ Gửi thông báo lỗi ⚠️ Báo cáo tài liệu vi phạmNội dung chi tiết: Ebook Thoracic imaging - Pulmonary and cardiovascular radiology (3/E): Part 2
Ebook Thoracic imaging - Pulmonary and cardiovascular radiology (3/E): Part 2
Section FourAirway Abnormalities17591760CHAPTER 22The Tracheaw. RICHARD WEBBTHE NORMAL TRACHEAThe trachea extends from the inferior aspect of the cric Ebook Thoracic imaging - Pulmonary and cardiovascular radiology (3/E): Part 2coid cartilage (al the level of the sixth cervical vertebra) to the carina (at the level of the fifth thoracic vertebra). It measures from 10 to 12 cm in length. The trachea is divided into extrathoracic and intrathoracic portions at the level it passes posterior to the manubrium; the extrathoracic Ebook Thoracic imaging - Pulmonary and cardiovascular radiology (3/E): Part 2trachea is 2 to 4 cm in length, while the intrathoracic trachea measures 6 to 9 cm in length. From 16 to 22 horseshoe-shaped bands of hyaline cartilagEbook Thoracic imaging - Pulmonary and cardiovascular radiology (3/E): Part 2
e support the anterior and lateral tracheal walls. The incomplete posterior portion of these rings is bridged by a thin band of smooth muscle and fibrSection FourAirway Abnormalities17591760CHAPTER 22The Tracheaw. RICHARD WEBBTHE NORMAL TRACHEAThe trachea extends from the inferior aspect of the cric Ebook Thoracic imaging - Pulmonary and cardiovascular radiology (3/E): Part 2wall(arrow) is outlined by mediastinal fat externally and usually is visible as a 1- to 2-mm soft tissue stripe. The posterior tracheal membrane usually appears thinner than the anterior andlateral tracheal walls and is variable in shape due to its lack of cartilage. At this level, it is partially o Ebook Thoracic imaging - Pulmonary and cardiovascular radiology (3/E): Part 2bscured by the esophagus. B: At the level of the aortic arch, the tracheal wall (arrows) is outlined by mediastinal fat and the right lung in the regiEbook Thoracic imaging - Pulmonary and cardiovascular radiology (3/E): Part 2
on of (he right paratracheal stripe. The tracheal wall appears thin. C: Diagrammatic representation of the normal components of the tracheal wall.The Section FourAirway Abnormalities17591760CHAPTER 22The Tracheaw. RICHARD WEBBTHE NORMAL TRACHEAThe trachea extends from the inferior aspect of the cric Ebook Thoracic imaging - Pulmonary and cardiovascular radiology (3/E): Part 2ed, triangular, or like an inverted pear in some normal patients. The tracheal wall is delineated by air in its lumen internally and by mediastinal fat externally and is usually visible as a 1- to 2-mm soft tissue stripe. The posterior tracheal membrane appears thinner than the anterior and lateral Ebook Thoracic imaging - Pulmonary and cardiovascular radiology (3/E): Part 2tracheal walls and is variable in shape due to its lack of cartilage; it can appear convex, concave, or flat. The tracheal cartilages may appear calciEbook Thoracic imaging - Pulmonary and cardiovascular radiology (3/E): Part 2
fied or slightly denser than adjacent soft tissue. Calcification of cartilage is most common in older patients and is particularly common in women (FiSection FourAirway Abnormalities17591760CHAPTER 22The Tracheaw. RICHARD WEBBTHE NORMAL TRACHEAThe trachea extends from the inferior aspect of the cricSection FourAirway Abnormalities17591760CHAPTER 22The Tracheaw. RICHARD WEBBTHE NORMAL TRACHEAThe trachea extends from the inferior aspect of the cricGọi ngay
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