Lymph Node Imaging Techniques Imaging evaluation of lymph nodes forms an integral component of staging of various malignancies, including lymphomas, and is also helpful in the evaluation of certain infective and inflammatory processes within the abdomen. This has special relevance…
Focal gallbladder wall thickening is often an imaging diagnosis and encompasses a wide variety of differential diagnoses. Polypoid lesions of the gallbladder form an important group of conditions that are included in the differential diagnosis of focal gallbladder wall thickening…
Diffuse gallbladder wall thickening is commonly encountered in diagnostic settings. The ability of ultrasonography, computed tomography (CT), and magnetic resonance imaging (MRI) to directly visualize the thickened gallbladder wall ascertains the importance of this condition. Ultrasound is the initial imaging…
Etiology Acute pancreatitis is an acute inflammatory disorder of the pancreas that has numerous causes ( Box 48-1 ). The most common risk factors are chronic alcohol consumption and choledocholithiasis. In 20% of cases no cause can be found. Box…
Etiology Cystic lesions of the pancreas encompass a wide spectrum of different pathologic entities, ranging from developmental, to inflammatory, to neoplastic cysts. Neoplastic cystic lesions, which are the most important, owing to their profound impact on patient prognosis and the…
Etiology The term solid pancreatic masses, in its wide meaning, encompasses neoplastic lesions and non-neoplastic masses, ranging from anatomic variants, such as pancreatic head lobulations, to focal inflammatory processes and neoplasms. This chapter will mainly discuss solid pancreatic neoplasms and…
Technical Aspects Diagnostic imaging of the hepatobiliary system, with multidetector computed tomography (MDCT) and magnetic resonance imaging (MRI), plays a major role in hepatobiliary surgery, helping to choose the best therapeutic approach, reduce complications, and identify the anatomy requiring special…
Surgical procedures performed on the bowel are innumerable, and their detailed discussion is beyond the scope of this chapter. To understand the related imaging, it is important to be familiar with the postoperative anatomy. Our purpose in this chapter is…
Etiology The causes of the development of colorectal carcinoma and its precursor lesion, the colonic adenoma, are multifactorial and include both genetic predisposition and environmental insults. Risk factors for colorectal carcinoma include familial polyposis syndrome, ulcerative colitis, family history of…
Technical Aspects Anatomy The esophagus extends from the pharynx to the cardiac portion of the stomach. The length of the esophagus is approximately 25 to 30 cm, and it has cervical, thoracic, and abdominal portions. The cervical portion extends from the…