case_images: PMC6591652_01
case_images: Magnetic resonance imaging of the patient demonstrating a right
  parpapharyngeal mass with posterolateral displacement of the internal
  carotid artery. Mass demonstrating (A) T1-weighted isointensity and (B)
  T2-weighted hyperintensity to surrounding musculature.
case_images: 10.1177_1179547619853799-fig1.jpg
case_images: PMC6591652_01_10.1177_1179547619853799-fig1.jpg
case_images: fig1-1179547619853799
case_images: Magnetic resonance imaging (MRI) was negative for intracerebral pathology, but revealed a 4.3 x 3.1 x 1.9 cm left poststyloid parapharyngeal mass (Figure 1).
case_images: Gross intraoperative appearance of surgically excised right parapharyngeal
  mass.
case_images: 10.1177_1179547619853799-fig2.jpg
case_images: PMC6591652_01_10.1177_1179547619853799-fig2.jpg
case_images: fig2-1179547619853799
case_images: The stylohyoid and posterior belly of the digastric muscle were inferiorly retracted to identify the mass, and it was bluntly dissected free from surrounding tissues (Figure 2).
case_images: (A) Parapharyngeal lymph node (H&E, 20x). (B) Parapharyngeal lymph node
  (H&E, 100x).
case_images: 10.1177_1179547619853799-fig3.jpg
case_images: PMC6591652_01_10.1177_1179547619853799-fig3.jpg
case_images: fig3-1179547619853799
case_images: Pathologic review of the mass revealed a parapharyngeal lymph node with features consistent with the hyaline-vascular subtype of CD, as shown by atretic follicles with "onion-skinning" of mantle zone lymphocytes, sclerotic blood vessels radially penetrating follicles, and marked interfollicular proliferation of sclerotic blood vessels (Figure 3).