Table 1. A summary of FFPE leiomyosarcoma cases included in this study.

Case	Anatomical Site	Tumour Sampling Date	Age of Sample at Analysis	DLR Spread
LMS 1	Bowel	2010	1	0.24
LMS 2	Lower Limb	2011	1	0.21
LMS 3	Lower Limb	2011	1	0.17
LMS 4	Bladder	2011	1	0.17
LMS 5	Stomach	2011	1	0.23
LMS 6	Stomach	1994	17	0.25
LMS 7	Lower Limb	1999	12	0.26
LMS 8	Bladder	1998	13	0.21
LMS 9§	Vagina	2011	1	0.25
LMS 10§	Retroperitoneum	2011	1	0.29
LMS 11§	Pelvis	2011	1	0.34
LMS 12	Stomach	2011	1	0.26
LMS 13	Uterus	2004	8	0.40
LMS 14	Bowel	1995	17	0.32
LMS 15	Uterus	1997	15	0.35
LMS 16	Uterus	1997	15	0.33
LMS 17	Nose	1998	14	0.26
LMS 18	Pelvis	2004	8	0.21
LMS 19	Retroperitoneum	2003	9	0.23
LMS 20	Uterus	2008	4	0.21
LMS 21	Uterus	2011	1	0.17
LMS 22	Lower Limb	2000	12	0.27

DLR Spread – Derivative Log Ratio Spread of Array Data.

^{§ -}Additional fresh samples obtained and frozen before fixing in formalin.