Article Figures & Data
Figures
- Fig 1.
A longitudinal PD sonographic image reveals a well-circumscribed heterogeneous markedly hypoechoic solid mass in the right posterior cervical space. The mass is hypoechoic compared with the sternocleidomastoid muscle, with prominent vascularity.
- Fig 2.
Axial contrast-enhanced CT (A) and sagittal contrast-enhanced reformatted (B) images reveal a well-defined ovoid mass with homogeneous intense enhancement. The degree of enhancement is as intense as that of vascular structures. The mass is located posterolateral to the internal and common carotid arteries (arrow) and the compressed internal jugular vein (open arrow). These structures are displaced anteromedially by the mass.
- Fig 3.
Photomicrograph of the cytologic examination of the specimen obtained by fine-needle aspiration biopsy of the mass demonstrates cellular nests, which comprise oval-to-spindle cells (papanicolaou stain, original magnification ×1000).
- Fig 4.
A, Photomicrograph of the histologic examination of the mass at low-power field reveals numerous gaping and branching thin-walled vessels surrounded by oval-to-spindle myoid cells (arrows) (hematoxylin-eosin [HE], original magnification, ×40). B, At high-power field, most plump tumor cells, having oval-to-spindle nuclei, arrange around vessels (arrows). Some tumor cells show mild cytologic atypia (HE, original magnification ×400).
- Fig 5.
Photomicrographs show that most tumor cells demonstrate diffuse positivity for smooth muscle actin (SMA) (A, immunohistochemical stain for SMA, original magnification ×400) and CD34 (B, immunohistochemical stain for CD34, original magnification ×400) consistent with a pericytic/myoid differentiation, which are needed for the diagnosis of myopericytoma.
In this issue
Jump to section
Related Articles
Cited By...
- No citing articles found.