Faces of Radiation Squamous cell Carcinoma 4 Years Prior Chemo Radiation CT Cavitating Squamous Cell Carcinoma50 year old male with cough and weight lossCoronal and sagittal CT reconstructions show a cavitating mass in the superior segment of the right lower lobe (upper images) correlated with axial images (lower panel)Ashley Davidoff MD TheCommonVein.net 176Lu 136737 9 Months After Chemo Radiation CT Cavitating Squamous Cell Carcinoma 9 Months Following Chemoradiation Therapy50 year old male with cough and weight lossCT in the axial plane (upper image) shows resolution of the cavitating mass in the superior segment of the right lower lobe confirmed by the axial PET image. Post XRT fibrosis is noted in the apical segment of the RLLAshley Davidoff MD TheCommonVein.net 176Lu 136739 1 year after Chemo XRT CT Cavitating Squamous Cell Carcinoma 1 year After Chemoradiation Therapy50 year old male with cough and weight lossCT in the axial plane shows resolution of the cavitating mass in the superior segment of the right lower lobe confirmed by the axial PET image.Post XRT fibrosis is noted in the apical segment of the RLLAshley Davidoff MD TheCommonVein.net 176Lu 136740 3 Years after Chemo XRT CT Cavitating Squamous Cell Carcinoma 3 years After Chemoradiation Therapy50 year old male with cough and weight lossCT in the axial plane shows resolution of the cavitating mass in the superior segment of the right lower lobe confirmed by the axial PET image. However there is progressive thickening of the bronchovascular bundle and close follow up would be needed. PostXRT fibrosis is noted in the apical segment of the RLLAshley Davidoff MD TheCommonVein.net 176Lu 136741 4 Years after Chemo XRT CT Cavitating Squamous Cell Carcinoma 4 years After Chemoradiation TherapyCT in the axial plane shows resolution of the cavitating mass in the superior segment of the right lower lobe confirmed by the axial PET image.However there is progressive thickening of the bronchovascular bundle and PET scan would be indicated.Post XRT fibrosis is progressive in the apical segment of the RLL.There is background extensive paraseptal and centrilobular emphysema.Ashley Davidoff MD TheCommonVein.net 176Lu 136742