case_images: PMC9744074_01
case_images: Computed tomography scan intraluminal polypoidal mass leading to near complete luminal obstruction that involving cervical and upper thoracic esophagus associated with invasion to the posterior aspect of the trachea, mediastinal lymphadenopathy
case_images: ABR-11-95-g001.jpg
case_images: PMC9744074_01_ABR-11-95-g001.jpg
case_images: F1
case_images: In computed tomography (CT) scan, increase in esophageal thickness reported in entire of its length [Figure 1].
case_images: Neoplastic cells infiltrated in the esophageal wall. (a) x100. (b) x400
case_images: ABR-11-95-g002.jpg
case_images: PMC9744074_01_ABR-11-95-g002.jpg
case_images: F2
case_images: Several biopsies undertaken and prepared slides revealed neoplastic proliferation of small tumoral cells with high N/C ratio, pleomorphism, and marked mitotic activity with necrosis [Figure 2].
case_images: Immunohistochemistry: (a) Cytokeratin. (b) neuron-specific enolase. (c) Chromogranin
case_images: ABR-11-95-g003.jpg
case_images: PMC9744074_01_ABR-11-95-g003.jpg
case_images: F3
case_images: Ki67 was positive in 50% of tumoral cells [Figure 3].