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Slide 1: RIDIOLOGY BY Dr.IQBAL KHAN (pakistan) (weifang china) slides bout Gall bladder
Slide 2: Introduction What is gallbladder carcinoma? A malignant neoplasm of the bile reservoir, characterized by anorexia, nausea, vomiting, weight loss, progressively worsening right upper quadrant pain, and eventually jaundice. Tumors of the gallbladder are predominantly adenocarcinomas. Often associated with biliary calculi and chronic cholecystitis, they are three to four times more common in women than in men and rarely occur before 40 years of age
Slide 3: Gall bladder carcinoma Transverse dynamic contrast-enhanced multiphasic CT images of bladder cancer. (a) A 60-second delayed CT image; the attenuation value of bladder cancer (arrow) is 77 HU. (b) A 60second delayed CT image; the attenuation value of bladder cancer (arrow) is 108 HU. (c) An 80-second delayed CT image; the attenuation value of bladder cancer (arrow) is 93 HU. (d) A 100-second delayed CT image; the attenuation value of bladder Kim J K et al. Radiology 2004;231:725-731 ©2004 by Radiological Society of North America cancer (arrow) is 82 HU.
Slide 4: Image in a 57-year-old man who underwent TURB 16 days before CT. Transverse 60-second delayed CT image shows two strongly enhancing nodules (large arrow and arrowhead) with a maximal diameter of 3 mm that were diagnosed as transitional cell carcinomas at histologic examination of radical cystectomy specimen. Focal wall thickening (small arrows) of the bladder wall due to previous TURB does not contain any additional tumor and enhances much less intensely than the bladder cancers, which allows it to be differentiated from malignancy.
Slide 5: Figure 3. Image in a 48-year-old man underwent TURB 4 days before CT. Transverse 60-second delayed CT image shows focal wall thickening (arrows) with linear enhancement. We considered this lesion to be bladder cancer; however, histologic examination of the radical cystectomy specimens showed no residual tumor, only focal inflammation and fibrosis.
Slide 6: Gall bladder carcinoma Figure 4. Image in a 64-year-old woman with bladder cancer invading perivesical fat. Transverse 60-second delayed CT image shows diffuse wall thickening with enhancement on the right side of the bladder. The interface (arrowheads) between the bladder cancer and perivesical fat is irregular, suggesting perivesical fat invasion of bladder cancer. Histologic examination confirmed a diagnosis of bladder cancer with perivesical invasion.
Slide 7: bladder cancer Figure 5. Image in a 59-year-old man with bladder cancer who underwent TURB 2 days before CT. Transverse 60-second delayed CT image shows diffuse wall thickening with strong enhancement and wide perivesical fat infiltration (arrowheads) around the bladder cancer, which suggests perivesical fat invasion. Histologic examination of radical cystectomy specimens, however, showed the bladder cancer was confined to the bladder wall, without perivesical invasion.