An additional sonographic sign of gangrenous cholecystitis, namely the loss of the mucosal/gall-bladder wall echo in a setting of acute cholecystitis, is described. It was found prospectively in six patients and correlated well with the presence of mucosal/wall necrosis on histological gallbladder specimens. Other reported signs of gangrenous cholecystitis are reviewed.
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Mok et al. (1994) studied this question.
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