case_images: PMC5684558_01
case_images: Grossly, the tumor had a pearly-white appearance and was well circumscribed, focally calcified with hemorrhagic alterations.
case_images: CRIOT2017-7121485.001.jpg
case_images: PMC5684558_01_CRIOT2017-7121485.001.jpg
case_images: fig1
case_images: Grossly, the submandibular lesion, 3 x 2 x 1 cm in size, was well circumscribed, firm, and focally calcified and had a pearly-white appearance with multifocal hemorrhagic areas on the cut surface (Figure 1).
case_images: Fusocellular proliferation encapsulated by a thick fibrous capsule compressing the nodal tissue (HE, 100x).
case_images: CRIOT2017-7121485.002.jpg
case_images: PMC5684558_01_CRIOT2017-7121485.002.jpg
case_images: fig2
case_images: Microscopic examination revealed a fusocellular proliferation encapsulated by a thick fibrous capsule (Figure 2).
case_images: The lesion contains hemosiderin pigments (HE, 400x).
case_images: CRIOT2017-7121485.003.jpg
case_images: PMC5684558_01_CRIOT2017-7121485.003.jpg
case_images: fig3
case_images: Otherwise, hemorrhagic alterations and hemosiderin pigment were present (Figure 3).
case_images: Acellular material accumulation with homogeneous eosinophilic appearance called "amianthoid fibers" (HE, 100x).
case_images: CRIOT2017-7121485.004.jpg
case_images: PMC5684558_01_CRIOT2017-7121485.004.jpg
case_images: fig4
case_images: A striking feature was the presence of satellite areas of homogeneous and eosinophilic deposits identical to those previously described as "amianthoid fibers" (Figure 4).
case_images: The spindle cells were diffusely immunoreactive for SMA.
case_images: CRIOT2017-7121485.005.jpg
case_images: PMC5684558_01_CRIOT2017-7121485.005.jpg
case_images: fig5
case_images: Immunohistochemical stains showed a strong immunoreactivity for vimentin and Smooth Muscle Actin (SMA) (Figure 5).