No abstract available

[en] A septic course suggestive of intra-abdominal abscess followed surgery in a small child with a perforated appendix. Usual diagnostic studies, fluoroscopy, and rectal and wound exploration failed to localize an abscess. The use of gallium 67 scanning accurately localized multiple abscesses which were successfully drained

[en] A middle-aged Latin American with serological and biopsy proven diagnosis of alpha-chain disease involving the small intestine had whole-body imaging with 5 mCi Ga-67 citrate for the staging of possible lymphoma. There was persistent diffuse accumulation of the Ga-67 activity in the abdomen, simulating findings of peritonitis. The causes of diffuse abdominal Ga-67 activity are briefly discussed. (orig.)

[en] Radionuclide studies in a renal-transplant patient with congestive heart failure suggested vascular steal from the renal allograft by a contralateral femoral arteriovenous fistula. These reliable, noninvasive diagnostic procedures have potential use in similar settings to evaluate allograft perfusion and function. Correction by removal of the fistula was demonstrated

[en] A radionuclide method was developed to evaluate a local GVH reaction. 5-20x10₆ mononuclear cells prepared from 15 healthy blood donors were injected into the abdominal skin of 15 partially immunosuppressed rats. 48 hours later, 0.5 mCi of [Tc-99m] sodium pertechnetate was injected and local GVH reactions were evaluated from nodules on inverted skins that were imaged and analyzed by a portable gamma camera interfaced with mini computer. There was an excellent visualization of positive GVH reaction with greater than 5x10₆ mononuclear cells, and there was also good correlation between inoculated cell numbers and radioactive count density ratios, providing objective standardization for the grading of positive reactions