Ebook Brant and helms’ fundamentals of diagnostic radiology (5/E): Part 2
➤ Gửi thông báo lỗi ⚠️ Báo cáo tài liệu vi phạmNội dung chi tiết: Ebook Brant and helms’ fundamentals of diagnostic radiology (5/E): Part 2
Ebook Brant and helms’ fundamentals of diagnostic radiology (5/E): Part 2
SECTION VII■ GASTROINTESTINAL TRACTSECTION EDITOR: William E. BrantCHAPTER ■ ABDOMEN AND 40PELVISWILLIAM E. BRANT AND JENNIFER POHLImaging MethodsComp Ebook Brant and helms’ fundamentals of diagnostic radiology (5/E): Part 2partmental Anatomy of the Abdomen and PelvisFluid in the Peritoneal CavityPneumoperitoneumAbdominal CalcificationsAcute AbdomenSmall Bowel ObstructionLarge Bowel ObstructionBowel Ischemia and InfarctionAbdominal TraumaLymphadenopathyAbdominopelvic Tumors and MassesHernias of the Abdominal WallHIV an Ebook Brant and helms’ fundamentals of diagnostic radiology (5/E): Part 2d AIDS in the AbdomenIMAGING METHODSConventional radiographs of the abdomen remain a mainstay for the assessment of the acute abdomen. CT, US, and MREbook Brant and helms’ fundamentals of diagnostic radiology (5/E): Part 2
provide comprehensive evaluation of the abdomen including the peritoneal cavity, retroperitoneal compartments, abdominal and pelvic organs, blood vessSECTION VII■ GASTROINTESTINAL TRACTSECTION EDITOR: William E. BrantCHAPTER ■ ABDOMEN AND 40PELVISWILLIAM E. BRANT AND JENNIFER POHLImaging MethodsComp Ebook Brant and helms’ fundamentals of diagnostic radiology (5/E): Part 2ental to understanding the effects of pathologic processes and to correctly interpret imaging studies. Understanding the shape and extent of anatomic compartments and their normal variations may clarify imaging findings that would otherwise be incomprehensible or lead to misdiagnosis. Fundamental co Ebook Brant and helms’ fundamentals of diagnostic radiology (5/E): Part 2nsiderations include constant anatomic landmarks, ligaments and fascia that define compartments, and normal variations in size and appearance of the vEbook Brant and helms’ fundamentals of diagnostic radiology (5/E): Part 2
arious compartments and recesses. Identifying the precise compartment that an abnormality is in determines to a great extent the origin of the abnormaSECTION VII■ GASTROINTESTINAL TRACTSECTION EDITOR: William E. BrantCHAPTER ■ ABDOMEN AND 40PELVISWILLIAM E. BRANT AND JENNIFER POHLImaging MethodsComp Ebook Brant and helms’ fundamentals of diagnostic radiology (5/E): Part 2in both portions of the peritoneal cavity are numerous recesses in which pathologic processes tend to loculate. The right subphrenic space communicates around the liver with the anterior subhepatic and posterior subhepatic space (Morison pouch). Morison pouch (the right hepatorenal fossa) is the mos Ebook Brant and helms’ fundamentals of diagnostic radiology (5/E): Part 2t dependent portion of the abdominal cavity in a supine patient and it preferentially collects ascites, hemoperitoneum, metastases, and abscesses. TheEbook Brant and helms’ fundamentals of diagnostic radiology (5/E): Part 2
right subphrenic and subhepatic spaces communicate freely with the pelvic peritoneal cavity via the right paracolic gutter.The left subphrenic space SECTION VII■ GASTROINTESTINAL TRACTSECTION EDITOR: William E. BrantCHAPTER ■ ABDOMEN AND 40PELVISWILLIAM E. BRANT AND JENNIFER POHLImaging MethodsComp Ebook Brant and helms’ fundamentals of diagnostic radiology (5/E): Part 2olic gutter by the phrenicocolic ligament. The left subphrenic (perisplenic) space distends with fluid from ascites and with blood from splenic trauma. It is a common location for abscesses and for disease processes of the tail of the pancreas. The left subhepatic space (gastrohepatic recess) is aff Ebook Brant and helms’ fundamentals of diagnostic radiology (5/E): Part 2ected by diseases of the duodenal bulb, lesser curve of the stomach, gallbladder, and left lobe of the liver.The falciform ligament consists of two clEbook Brant and helms’ fundamentals of diagnostic radiology (5/E): Part 2
osely applied layers of peritoneum extending from the umbilicus to the diaphragm in a parasagittal plane. The caudal free end of the falciform ligamenSECTION VII■ GASTROINTESTINAL TRACTSECTION EDITOR: William E. BrantCHAPTER ■ ABDOMEN AND 40PELVISWILLIAM E. BRANT AND JENNIFER POHLImaging MethodsComp Ebook Brant and helms’ fundamentals of diagnostic radiology (5/E): Part 2nlarge within the falciform ligament are a specific sign of portal hypertension. The reflections of the falciform ligament separate over the posterior dome of the liver to form the coronary ligaments, which define the "bare area" of the liver not covered by peritoneum. The coronary ligaments reflect Ebook Brant and helms’ fundamentals of diagnostic radiology (5/E): Part 2 between the liver and diaphragm and prevent access of ascites and other intraperitoneal processes from covering the bare area of the liver.The lesserEbook Brant and helms’ fundamentals of diagnostic radiology (5/E): Part 2
omentum, composed of the gastrohepatic and hepatoduodenal ligaments, suspends the stomach and duodenal bulb from the inferior surface of the liver. TSECTION VII■ GASTROINTESTINAL TRACTSECTION EDITOR: William E. BrantCHAPTER ■ ABDOMEN AND 40PELVISWILLIAM E. BRANT AND JENNIFER POHLImaging MethodsComp Ebook Brant and helms’ fundamentals of diagnostic radiology (5/E): Part 2 (which dilate as varices) and contains lymph nodes (which enlarge with involvement by gastric carcinoma and lymphoma). The lesser sac is the isolated peritoneal compartment between the stomach and the pancreas. It communicates with the rest of the peritoneal cavity (the greater sac) only through th Ebook Brant and helms’ fundamentals of diagnostic radiology (5/E): Part 2e small foramen of Winslow. Pathologic processes in the lesser sac usually occur because of disease in adjacent organs (pancreas, stomach) rather thanEbook Brant and helms’ fundamentals of diagnostic radiology (5/E): Part 2
spread from elsewhere in the abdominal cavity. The lesser sac is normally collapsed but can become huge when filled with fluid.The greater omentum isSECTION VII■ GASTROINTESTINAL TRACTSECTION EDITOR: William E. BrantCHAPTER ■ ABDOMEN AND 40PELVISWILLIAM E. BRANT AND JENNIFER POHLImaging MethodsComp Ebook Brant and helms’ fundamentals of diagnostic radiology (5/E): Part 2m the anterior abdominal wall. The greater omentum encloses fat and a few blood vessels. It serves as fertile ground for implantation of peritoneal metastases, and assists in loculation of inflammatory processes of the peritoneal cavity such as abscesses and tuberculosis.FIGURE 40.1. Anatomy of the Ebook Brant and helms’ fundamentals of diagnostic radiology (5/E): Part 2Peritoneal Cavity. A: Diagram of an axial cross-section of the abdomen illustrates the recesses of the greater peritoneal cavity and the lesser sac. BEbook Brant and helms’ fundamentals of diagnostic radiology (5/E): Part 2
CT scan of a patient with a large amount of ascites nicely demonstrates the recesses of the greater peritoneal cavity and the lesser sac Tire lesser SECTION VII■ GASTROINTESTINAL TRACTSECTION EDITOR: William E. BrantCHAPTER ■ ABDOMEN AND 40PELVISWILLIAM E. BRANT AND JENNIFER POHLImaging MethodsComp Ebook Brant and helms’ fundamentals of diagnostic radiology (5/E): Part 2gament (arrowhead) separates the right and let) subpluenic spaces. Fluid from tire greater peritoneal cavity extends into Morison pouch (arrow) between the liver and the right kidney. Fluid in the gastrohepatic recess (*) separates the stomach from the liver (L). s. spleen: GB. gallbladder: RK. righ Ebook Brant and helms’ fundamentals of diagnostic radiology (5/E): Part 2t kidney: IVC. nderior vena cava: Ao. aorta: LK. left kidney.The retroperitoneal space between the diaphragm and the pelvic brim is divided into anterEbook Brant and helms’ fundamentals of diagnostic radiology (5/E): Part 2
ior pararenal, perirenal, and posterior pararenal compartments by the anterior and posterior renal fascia (Fig. 40.3). The anterior pararenal space exSECTION VII■ GASTROINTESTINAL TRACTSECTION EDITOR: William E. BrantCHAPTER ■ ABDOMEN AND 40PELVISWILLIAM E. BRANT AND JENNIFER POHLImaging MethodsComp Ebook Brant and helms’ fundamentals of diagnostic radiology (5/E): Part 2al loop, and ascending and descending portions of the colon are within the anterior pararenal space. Disease in the anterior pararenal space usually originates from these organs (pancreatitis, perforating/penetrating ulcer, diverticulitis).Co-.Z'.’ViIqu-WSBnw»juar Laa n.tctTW.1 itauiHMiiMXta* Ebook Brant and helms’ fundamentals of diagnostic radiology (5/E): Part 2SECTION VII■ GASTROINTESTINAL TRACTSECTION EDITOR: William E. BrantCHAPTER ■ ABDOMEN AND 40PELVISWILLIAM E. BRANT AND JENNIFER POHLImaging MethodsCompGọi ngay
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