A 71-year-old male presents with dysphagia and is found to have a 5-cm mass that is located in the middle third of the esophagus and extends into adjacent lung tissue. A biopsy from this mass would most likely reveal

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Accepted Answer

A mass composed of benign cailage

Answer

A mass composed of benign smooth-muscle cells

Answer

Infiltrating groups of cells forming glandular structures

Answer

Infiltrating sheets of cells forming keratin

A 71-year-old male presents with dysphagia and is found to have a 5-cm mass that is located in the middle third of the esophagus and extends into adjacent lung tissue. A biopsy from this mass would most likely reveal

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