Table 1.

Differential diagnosis of spindle cell tumors

IHC	Differential diagnosis of spindle cell tumors
	LMS	Monophasic synovial sarcoma	MPNST	Spindle cell rhabdomyosarcoma	Spindle cell melanoma
h-caldesmon	Positive
TLE-1		Positive
SOX10			Positive		Positive
SS18		Positive
desmin	Positive			Positive
S-100					Positive
MYOD1				Positive

MPNST: Malignant peripheral nerve sheath tumor, TLE-1: Transducin-like enhancer of split 1, SS18: Synovial sarcoma 18, Myo D1: Myogenin D1, LMS: Leiomyosarcoma, IHC: Immunohistochemistry