PMC6591652_01
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.
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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).
Gross intraoperative appearance of surgically excised right parapharyngeal
mass.
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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).
(A) Parapharyngeal lymph node (H&E, 20x). (B) Parapharyngeal lymph node
(H&E, 100x).
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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).