ABSTRACT
The survival of 117 black and white patients treated by radiation for carcinoma of the prostate at SUNY Health Science Center at Brooklyn (SUNY/HSCB) and Kings County Hospital Center (KCHC) was analyzed according to Gleason's grading system. The effect of total pattern score and its relationship to stage and survival and to race were intercompared. In both black and white racial groups, there was strong correlation between high pattern score and high stage p = less than 001. The percentage of black patients presenting with high pattern score (7-10) was significantly greater, 43 versus 27%; this adversely affected stage and survival. The median survival for white and black patients was 4.8 and 3.2 years, respectively; p = 0.007. Stage for stage and grade for grade, survival was similar in both racial groups.
Subject(s)
Adenocarcinoma/radiotherapy , Black People , Prostatic Neoplasms/radiotherapy , White People , Adenocarcinoma/ethnology , Adenocarcinoma/mortality , Adenocarcinoma/pathology , Humans , Male , Prognosis , Prostatic Neoplasms/ethnology , Prostatic Neoplasms/mortality , Prostatic Neoplasms/pathology , Retrospective StudiesABSTRACT
Experimental evidence is presented indicating that 80% of the increase in unilateral film blackening on the chest radiograph resulting from rotation of the patient is due to asymmetrical absorption of the X-ray beam. Scatter contributes 20% to this increase in blackening. The effect on the radiograph of lateral decentring is also described. In the rotated patient, the hypertransradiant hemithorax always occurs on the side to which the patient is rotated, and is independent of the projection. If this rule is broken, then decentring or a thoracic abnormality is present.
