Suspected Radiation-Induced Osteosarcoma in a Domestic Shorthair Cat

Figure 2

Color wash of radiation dose distributions for treatment of a spindle cell tumour of the spinal cord of the cat using intensity modulated and image guided technic (IMRT/IGRT). Dose color wash is superimposed on a standard window transverse plane post-contrast CT image at the level of the iliac body taken 158 weeks after the last dose of radiation. The high dose is seen in red and low dose in blue. Note the presence of the left ilium and mass within the high dose irradiation field (arrowhead).