Oesophageal carcinoma mimicking a submucosal lesion: A case report

Figure 1 Upper gastrointestinal endoscopy. A large, hemispherical lesion measuring about 4 cm × 5 cm in size, with a normal-appearing overlying mucosa extending from 30-34 cm from the incisors.

Figure 2 Endoscopic ultrasound images. Endoscopic ultrasound showing a hyperechoic mass lesion measuring 4 cm × 5 cm arising from the third layer of the oesophagus.

Figure 3 Photomicrography of oesophageal mucosal. A-C: Photomicrography of oesophageal mucosa showing round-to-polygonal neoplastic cells with moderate amounts of eosinophilic cytoplasm, with moderate nuclear atypia and abundant keratin pearl formation. This is consistent with well-differentiated esophageal squamous cell carcinoma (Hematoxylin-eosin staining).

Figure 4 Computed tomography images. A and B: Computed tomography chest with oral and IV contrast, showing a cavitatory metastatic nodule measuring 26 mm × 18 mm × 33 mm in the posterior basal segment of the left lower lobe.