Table 2.

Differential table for Desmoplastic Small Round Cell Tumor (DSRCT).

	Ultrasound	CT	PET/CT	MRI	Enhancement Pattern
Desmoplastic Small Round Cell Tumor	Heterogeneous, lobular mass	Heterogeneous, lobular masses, tumor calcification occurs in 55%	Multiple nodular foci of metabolic activity in masses	Heterogeneous of variable signal intensity	Heterogeneous
Neuroblastoma	Heterogeneous, hypoechoic mass	Low attenuation, heterogeneously enhancing mass, causes displacement	FDG avid mass	Heterogeneous, variably enhancing with low T1 and high T2 signal intensity	Heterogeneous, depending on degree of hemorrhage/necrosis
Rhabdomyosarcoma	Heterogeneous mass	Heterogeneous, lobulated mass	FDG avid mass	T1 intermediate with T2 intermediate to high signal intensity	Heterogeneous, depending on degree of hemorrhage/necrosis
Primitive Neuroectodermal Tumor	Heterogeneous, lobular mass	Heterogeneous, lobular masses, tumor, calcification is rare	Multiple nodular foci of metabolic activity in masses	Heterogeneous of variable signal intensity	Significant enhancement which can be homogeneous or heterogeneous
Peritoneal Leiomyo-sarcomatosis	Multiple, well defined masses	Multiple, well defined masses	Multiple nodular foci of metabolic activity in masses	Multiple, well defined masses.	Heterogeneous enhancement, lower in attenuation than normal myometrium.