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Correct Answer » B
Explanation
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Ans:B. Adenocarcinoma.
Image shows:Esophageal adenocarcinoma. A, Adenocarcinoma usually occurs distally and, as in this case, often involves the gastric cardia. B, Esophageal adenocarcinoma growing as back-to-back glands.
ESOPHAGEAL ADENOCARCINOMA
- Esophageal adenocarcinoma typically arises in a background of Barrett esophagus and long-standing GERD.
- Esophageal adenocarcinoma occurs most frequently in whites and shows a strong gender bias, being seven times more common in men than in women.
MORPHOLOGY
- Esophageal adenocarcinoma usually occurs in the distal third of the esophagus and may invade the adjacent gastric cardia .
- While early lesions may appear as flat or raised patches in otherwise intact mucosa, tumors may form large exophytic masses, infiltrate diffusely, or ulcerate and invade deeply.
- On microscopic examination, Barrett esophagus frequently is present adjacent to the tumor. Tumors typically produce mucin and form glands
