Mental status examinations (V. P. Zaitsev's clinical scale. MMPI test
modified by F. B. Berezin et al.) were performed in 90 patients with d
uodenal ulcer (DU) and 142 patients with chronic acalculous cholecysti
tis (CAC). Mental changes were revealed in 93.3% and 86.6% of DU and C
AC patients, respectively, in the desease aggravation. These changes p
ersisted more continuously in CAC patients as they remained after the
disease treatment unlike those in DU. Therefore, mental status of CAC
patients needs correction.