Carcinoma of the esophagus has a poor prognosis because:

1.	Carcinoma of the esophagus has a poor prognosis because:
A.	metastases to liver or lung are usually present before the diagnosis is made
B.	the lesion is not accessible to surgery
C.	local spread usually prevents complete removal
D.	the tumor is radioresistant
Answer» D. the tumor is radioresistant

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Carcinoma of the esophagus has a poor prognosis because:

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