Bone and soft tissue tumors presenting as sciatic notch dumbbell masses: A critical differential diagnosis of sciatica

Table 1 Clinical features of 8 patients with sciatic notch dumbbell tumors

Case	Age/sex	McCormick scale	Histology	Patient delay (mo)	Physician delay (mo)
1	41/F	II	Solitary fibrous tumor	26	7
2	12/F	I	UPS	12	4
3	27/F	III	Neurinoma	20	3
4	36/F	II	Carcinosarcoma	2	1
5	81/M	IV	Osteosarcoma	5	2
6	15/F	IV	UPS	2	1
7	35/F	II	Ewing's sarcoma	15	2
8	38/M	III	MPNST	12	1

UPS: Undifferentiated pleomorphic sarcoma; MPNST: Malignant peripheral nerve sheath tumor; M: Male; F: Female.