case_images: PMC10795900_01
case_images: (A-D) Infiltration of the gastric mucosa by a solid neoplasm, organized in nests and composed by large, eosinophilic cells with moderate to marked nuclear pleomorphism (A:HE, 40X); foci of dyskeratosis may be seen (B:HE, 400X). Histochemical stains for mucin show a lack of staining in viable squamous cells (C:PAS, 100X; D:Mucicarmim).
case_images: rjad736f1.jpg
case_images: PMC10795900_01_rjad736f1.jpg
case_images: f1
case_images: The tumor exhibited infiltration of the gastric mucosa by a solid neoplasm, organized in nests, composed of large, eosinophilic cells with moderate to marked nuclear pleomorphism (Fig. 1A). Foci of dyskeratosis were also observed (Fig. 1B). Histochemical stains for mucin showed a lack of staining in viable squamous cells (Fig. 1C- D).
case_images: (A-B) Immunohistochemical study reveal tumor cells positive for P40 (A, 40X) and diffuse positivity for EBER in situ hybridization (B, 40X).
case_images: rjad736f2.jpg
case_images: PMC10795900_01_rjad736f2.jpg
case_images: f2
case_images: Immunohistochemical study revealed tumor cells positive for P40 (Fig. 2A) and diffuse positivity for EBER in situ hybridization (Fig. 2B).