case_images: PMC10637156_01
case_images: Axial (a&c) and sagittal (b&d) CT scan cuts showing the mass occupying the oropharynx and obturating the majority of airway lumen.
case_images: 10.1177_2050313X231209670-fig1.jpg
case_images: PMC10637156_01_10.1177_2050313X231209670-fig1.jpg
case_images: fig1-2050313X231209670
case_images: Computed tomography (CT) scan of the neck showed enlargement of the left tonsil (29 mm x 52 mm x 32 mm) with narrowing of airway and enlargement of left level IB lymph node (Figure 1).
case_images: Hyalinizing clear cell carcinoma of the palatine tonsil. Grossly, the tumour appeared as an exophytic mass that protruded from the surface of the tonsil (a). In cross sections the mass was tan/white in colour, well demarcated and centred within the submucosa. The deep margin was free of tumour (b). The tumour was composed primarily of monomorphic population of large clear cells arranged in nests (c). The stroma surrounding the tumour cells varied from hyalinized to myxoid, a typical finding for hyalinizing clear cell carcinoma (d).
case_images: 10.1177_2050313X231209670-fig2.jpg
case_images: PMC10637156_01_10.1177_2050313X231209670-fig2.jpg
case_images: fig2-2050313X231209670
case_images: Gross examination of the tissue resected demonstrated a 3.9-cm mass protruding from the surface of the oropharynx (Figure 2(a)). Upon sectioning the tissue, the mass appeared as a tan/white, well-circumscribed lesion that occupied most of the specimen (Figure 2(b)). Microscopic examination revealed an infiltrative tumour composed of large cells with ample clear to eosinophilic cytoplasm (Figure 2(c)). The tumour cells were arranged in nests, sheets and small cysts and were embedded in a variably hyalinized myxoid stroma (Figure 2(d)).