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Radiology, Vol 152, 137-141, Copyright © 1984 by Radiological Society of North America

ARTICLES

Porcelain gallbladder: ultrasound and CT appearance

RA Kane, R Jacobs, J Katz and P Costello

Nine patients with calcification of the gallbladder wall (porcelain gallbladder) were analyzed by ultrasound and the appearance correlated with the CT, radiographic, clinical, and surgical findings. Three distinct patterns were identified: (a) a hyperechoic semilunar structure with acoustic shadowing posteriorly, simulating a stone- filled gallbladder devoid of bile, which was seen in 5 patients; (b) a biconvex , curvilinear echogenic structure with variable acoustic shadowing, seen in all 3 patients with carcinoma of the gallbladder; and (c) an irregular clump of echoes with posterior acoustic shadowing, seen in 1 patient. Potential pitfalls in the diagnosis of gallbladder calcification are presented, and the association between calcification and cancer is emphasized.




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