PMC5031836_01
MRI revealing a mass in the deep lobe of the parotid gland abutting the posterior aspect of the lateral pterygoid muscle, likely extending towards the stylomastoid foramen exhibiting low T1 signal intensity in (a) coronal and (b) axial planes as well as low STIR signal intensity in (c) axial plane.
CRIOT2016-9795785.001.jpg
PMC5031836_01_CRIOT2016-9795785.001.jpg
fig1
100x magnification of (a) calcifications around benign glandular tissue, (b) spindle cells infiltrating periparotid adipose tissue, and (c) smooth muscle stain of parotid lesion being positive. 200x magnification of (d) spindle cell lesion.
CRIOT2016-9795785.002.jpg
PMC5031836_01_CRIOT2016-9795785.002.jpg
fig2
The parotid specimen was prepared on H&E and immunohistochemical stained slides, shown in Figure 2.