PMC9577071_01
Nasopharyngeal mass seen on nasal endoscopy.
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We performed nasal endoscopy, which showed a nasopharyngeal mass almost obliterating the fossa of Rosenmuller on both sides (Figure 1).
Computed tomography scan showing nasopharyngeal mass (arrow).
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The CT scan showed a heterogeneously enhancing soft tissue mass measuring 2 x 1.4 x 3.9 cm in the nasopharynx, obliterating the bilateral fossa of Rosenmuller and extending inferiorly to the upper part of the oropharynx (Figure 2).
Epithelioid granuloma with Langhans giant cells. (a) Hematoxylin & eosin
stain x100. (b) Hematoxylin & eosin stain x400. (c) Ziehl-Neelsen stain:
x1000. Acid Fast Bacilli (arrow).
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The repeat biopsy showed caseating granuloma with dense chronic inflammatory cells forming lymphoid follicles and the ZN stain demonstrated a few AFB (Figure 3(a)-(c)).