Table 1
Summary of published studies on clear cell chondrosarcomas with more than five patients and clinical data.
 Study  Patients  Intralesionally resected/local recurrence  Time of recurrence  Wide resection/local recurrence  Time of recurrence  Time of metastasis (range)  Number of lethal cases  Location of metastasis  Longest survival after recurrence  Longest survival after metastasis  Longest time to recurrence  Longest time to metastasis 
 Unni et al. 1976 [3]  16  44%/86%  2.1 y (0.3 y–5 y)  54%/none  —  1 y (1 y–1.2 y)  5/16  Lung Bone Brain 
7.3 y  1.2 y  5 y  1.2 y 
 Le Charpentier et al. 1979 [5]  5  20%/100%  3 y  80%/none  —  2 y  1/5  Lung  10 y  2 y  3 y  2 y 

Bjornsson et al. 1984 [2]  47  32%/86%  Range 0.2 y–5 y  52%/16%  4 y (2 y–6 y)  Range 2 y–12 y  7/47  Lung Bone  13 y  6 y  6 y  12 y 
 Ayoub et al. 1999 [6]  6  50%/66%  3.9 y (2.8 y–5 y)  50%/33%  19 y      4.2 y  19 y  1 y 
 Itälä et al. 2005 [1]  16  44%/71%  1.7 y (0.1 y–1.9 y)  56%/none  —  8.1 y (4–16.4 y)  1/16  Lung Bone  5year survival 50%  8.4 y  1.9 y  16.4 y 
 Corradi et al. 2006 [42]  6  33%/100%  1.2 y (0.3 y–2 y)  67%/none  —  2.5 y (0.6 y–5 y)  0/6  Bone  5.4 y  4.8 y  7.5 y  9.7 y 
 Donati et al. 2008 [41]  18  28%/40%  4.4 y (1.0 y–11 y)  72%/17%  Range 2.2 y–10 y  Range 1 y–11 y  0/18  Bone Soft tissue   5 y  11 y  10 y 

