Solitary fibrous tumour presenting with a single bone metastasis: report of six cases and literature review

Table 1 Patient clinical characteristics and tumour histopathological and immunohistochemical features

Case no	Age/sex	Primary tumour					Bone metastasis					Further relapse		Status at last follow-up	OS (months)
Case no	Age/sex	Site	Diagnosis	STAT6 (IHC)	Surgery	RT	Fist distant relapse	Path diagnosis	IHC STAT6	Time from primary and bone relapse (month)	Treatment	Site of relapse	Time to relapse from bone met	Status at last follow-up	OS (months)
1	38/M	Meninges	Malignant SFT	Pos	Yes	No	7° left rib	Malignant SFT	Pos	50	Complete surgery	Bone	84	AWD	88
2	40/M	Meninges	Malignant SFT	Pos*	Yes	Yes	S3–S4 vertebra	Malignant SFT	Pos	27	palliative RT	Bone and lung	30	AWD	35
3	24/M	Meninges	Malignant SFT	Pos*	Yes	Yes	Hipbone	Malignant SFT	Pos	58	Complete surgery and RT	Bone	78	AWD	79
4	26/F	Meninges	Malignant SFT	Pos	Yes	Yes	C4–C5 vertebrae	Malignant SFT	Pos	48	Complete surgery and RT	NA	NA	NED	51
5	71/F	Deep soft tissue of left thigh	Malignant SFT	Pos	Yes	No	Left acetabulum	Malignant SFT	Pos	54	Definitive RT	NA	NA	NED	56
6	66/M	Deep soft tissue of left gluteus	Classic SFT	Pos	Yes	No	4° right rib	Malignant SFT	Pos*	0	Complete surgery	Lung	12	DOD	23

ISSN: 2045-3329