Clinicopathological findings in a case series of extrathoracic solitary fibrous tumors of soft tissues

BMC Surgery

Table 3 Histological results

patient	CD34 reactivity	CD99 reactivity	BCL2 reactivity	Vimentin (V9) reactivity	actin HHF35	smooth muscle actin	desmin	S100	keratin	MNF116	EMA	MiB1	necrosis	average mitoses/10 HPF	malignant component	additional tests
1	focal positive	focal positive	positive	positive	-	-	-	-	-	-	-	-	absent	<4	absent
2	focal positive	-	-	positive	-	focal positive	-	negative	negative	-	-	1%	absent	<4	absent
3	positive	positive	-	positive	focal positive	focal positive	focal positive	negative	negative	-	-	5%	absent	<4		loss on chromosome 13q
4	focal positive	focal positive	focal positive	focal positive	-	focal positive	focal positive	-	negative	negative	-	1–2%	absent	<1	absent
5	positive	positive	-	positive	-	-	-	negative	negative	-	negative	5–10%	present	10	present	HMB 45 negative
6	focal positive	positive	positive	positive	negative	negative	negative	negative	negative	negative	focal positive	<5%	absent	<4	absent	Keratin AE1/AE3 negative
7	positive	positive	positive	positive	-	-	-	-	-	-	focal positive	<1%	absent	<4	absent
8	positive	positive	positive	positive	-	-	negative	negative	negative	negative	negative	5%	present	3	present	HMB 45 negative Keratin AE1/AE3 focal
9	positive	positive	positive	focal positive	negative	negative	-	-	-	-	-	5–10%	absent	<4	absent

ISSN: 1471-2482