Question:medium
Most common malignancy of fallopian tube
Most common malignancy of fallopian tube
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The tube is lined by Mullerian epithelium, so its commonest cancer mirrors ovarian serous type.
Updated On: Jun 24, 2026
- Squamous cell carcinoma
- Serous carcinoma
- Teratoma
- Choriocarcinoma
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The Correct Option is B
Solution and Explanation
Step 1: Begin from the epithelium that lines the tube. The fallopian tube has Mullerian ciliated columnar epithelium, the same lineage that gives rise to serous tumours in the female genital tract. So a malignancy here is most likely to follow that lineage.
Step 2: Confirm with epidemiology. Among the rare primary tubal cancers, serous carcinoma overwhelmingly predominates, reported in about half to four-fifths of series. It even appears to be the seed for many pelvic high-grade serous cancers via the fimbrial end.
Step 3: Reject the mismatched histologies. Squamous cell carcinoma is a stratified squamous epithelial cancer of the lower tract, teratoma comes from germ cells, and choriocarcinoma comes from trophoblast. The tube has none of these as its usual primary tumour.
Step 4: The leading fallopian tube malignancy is therefore serous carcinoma.
\[\boxed{\text{Serous carcinoma}}\]
Step 2: Confirm with epidemiology. Among the rare primary tubal cancers, serous carcinoma overwhelmingly predominates, reported in about half to four-fifths of series. It even appears to be the seed for many pelvic high-grade serous cancers via the fimbrial end.
Step 3: Reject the mismatched histologies. Squamous cell carcinoma is a stratified squamous epithelial cancer of the lower tract, teratoma comes from germ cells, and choriocarcinoma comes from trophoblast. The tube has none of these as its usual primary tumour.
Step 4: The leading fallopian tube malignancy is therefore serous carcinoma.
\[\boxed{\text{Serous carcinoma}}\]
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