Small cell carcinomas are radiosensitive.

Prepare for your CVP and GI Pathology Exam. Study using flashcards and multiple choice questions with hints and explanations to excel in your test.

Multiple Choice

Small cell carcinomas are radiosensitive.

Explanation:
Small cell carcinomas are highly radiosensitive because they have a very high growth fraction and often defective DNA damage response pathways. Ionizing radiation causes DNA breaks, and rapidly dividing cells with impaired repair mechanisms die more readily when damaged. This makes small cell carcinomas particularly responsive to radiotherapy, which is why they are commonly treated with concurrent chemoradiation for limited-stage disease and palliatively in advanced disease. Their aggressive biology and early tendency to spread explain why surgery is rarely curative, not because radiation wouldn’t work.

Small cell carcinomas are highly radiosensitive because they have a very high growth fraction and often defective DNA damage response pathways. Ionizing radiation causes DNA breaks, and rapidly dividing cells with impaired repair mechanisms die more readily when damaged. This makes small cell carcinomas particularly responsive to radiotherapy, which is why they are commonly treated with concurrent chemoradiation for limited-stage disease and palliatively in advanced disease. Their aggressive biology and early tendency to spread explain why surgery is rarely curative, not because radiation wouldn’t work.

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