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Pathology Clinical Aspects of Neoplasia 5eda62f8

Which of the following carcinoma most frequently metastasizes to brain -

A
Small cell carcinoma lung
B
Prostate cancer
C
Rectal carcinoma
D
Endometrial cancer
High-Yield Explanation
Ans. is 'a' i.e., Small cell carcinoma of lung Frequency of Nervous system metastasis by common primary tumour. Site of primary tumourBrain %MetastasesLeptomeningeal % MetastasisSpinal cord % CompressionLung402418Breast194124Melanoma10124Gastrointestinal tract7136Genitourinary tract7-18Others171030

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