PMC5943867_01
With lymphoma on the torus tubalis of the nasopharynx, the nasal endoscopy revealed a right hypertrophied mass on torus tubalis (A). The neck computed tomography image showed a homogenous mass on the nasopharynx (B). Positron emission tomography scanning showed enhanced mass which revealed a 3.8 x 2.4 cm sized hypermetabolic mass (C). No mass on the nasopharynx after chemotherapy for lymphoma.
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F1
Nasal endoscopy revealed right hypertrophy of the torus tubair (Fig. 1).
With carcinoma on the posterolateral wall of the nasopharynx, the nasal endoscopy revealed a protruded (A). The neck computed tomography image showed a mildly enhanced mass on posterolateral wall of the nasopharynx (B). Positron emission tomography scanning showed a hypermetabolic mass (C). No mass on the nasopharynx after chemoradiation therapy for carcinoma.
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F2
A follow-up PET-CT study at 18 months after chemotherapy for lymphoma (Fig. 2) revealed hypermetabolic thickening and an obliteration at the right Rosenmuller fossa.
(A) Initial biopsy: the large atypical cells shows diffuse growth pattern (H&E stain, x400), (B) Immunostaining for CD20: large tumor cells are positive for CD20, a B-cell lineage marker, (C) Follow-up biopsy: the tumor cells shows infiltrative growth pattern with cytologic atypia (H&E stain, x400), (D) Immunostaining for cytokeratin.
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F3
We reviewed an institutional review board approval from Chonbuk National University Hospital and obtained proper consent from a patient (Fig. 3).