RESUMO
The combination of radiation therapy CRT) and hyperthermia (HT) has proved to be an effective treatment of a wide variety of superficially located recurrences of different tumors, particularly those arising in previously irradiated areas. Some studies have been reported with the use of this combined approach in the management of cutaneous lymphomas or recurrent previously irradiated sites of Hodgkin's disease (HD). We report a small series of five patients with six located sites of recurrent HD, and four patients with six superficially located sites of non Hodgkin's lymphomas (NHL), all of them being treated with combined HT and RT at our institution. Local control was obtained in each of combined treatment fields, and all patients are alive after a median follow-up of 24 months. All the patients tolerated the HT treatments well, and in all cases average intratumoral temperatures were >42 degrees C, with 8 out of 12 sites achieving the goal of average temperatures >42.5 degrees C. Two patients, one with recurrent HD and one with NHL, are free of disease after 20 and 21 months from the end of combined therapy. Our results thus seem to confirm previous experiences, suggesting a role of HT/RT not only for palliative purposes in cutaneous lymphomas, but also in the management of selected, heavily pretreated patients with superficially located recurrences of HD.
RESUMO
Plasma azopigments derived from conjugated bilirubin were analyzed by thin-layer chromatography according to HEIRWEGH et al. in 14 cases of obstructive jaundice and in 11 of acute hepatitis. The chromatographic patterns were compared with those obtained from azopigments derived from 8 normal bile samples. The plasma pigment patterns did not differ from those of the bile in number and chromatographic mobility of the spots. However, the quantitative percentages of the plasma azopigments were significantly modified: the alpha 0 fraction (free azodipyrrolic pigment) increased in both icteric syndromes, while the delta fraction (mainly glucuronide azopigment) decreased. Moreover, the behavior of two closed components of the delta group showed significant differences in both icteric syndromes. It can be postulated that the synthesis of bilirubin diconjugates decreases both in hepatocellular and cholestatic jaundice, while monoglucuronidated as well as saccharide and glucoside conjugates increase. In cholestatic jaundice the conjugation with glucuronic acid mainly takes place in the normal way, whereas compounds with different features are formed in hepatitis.