spindle cell melanoma picturesspindle cell sarcoma prognosisnon small cell carcinoma prognosissmall cell cancer prognosist cell leukemia prognosisspindle cell carcinoma of lungspindle cell lung cancerperipheral t cell lymphoma prognosishurthle cell carcinoma prognosismantle cell leukemia prognosisgiant cell tumor prognosisprognosis mantle cell lymphoma