Question

Which of the following is true regarding fallopian tube tuberculosis?

• A. Most common type of genital TB
• B. Size of the tubes is unchanged
• C. Is asymptomatic
• D. Primary focus of infection is always in the fallopian tubes

Hint:

Think about which pelvic structure TB bacilli reach first via the bloodstream.

Answer 1

The Correct Option is A

Step 1: Recall the spread pattern of pelvic TB. The bacilli reach the pelvis from a distant primary lesion, classically the lung, and travel through the bloodstream. The structure they reach first is the fallopian tube, which is why tubal disease dominates the picture of genital tuberculosis.

Step 2: Since the tube is involved in roughly $90$ to $100$ percent of all genital TB cases, it ranks as the commonest site, ahead of the endometrium, ovary and cervix. This directly supports option (a).

Step 3: Eliminate the wrong choices one by one. The tubal wall does not stay normal in calibre; granulomatous disease thickens and distorts it, ruling out option (b). The condition can be clinically quiet but is not invariably symptomless, since many women present with subfertility, so option (c) overstates the case. The seed of infection lies outside the genital tract, usually in the chest, so option (d) which claims the tube is always the primary focus is incorrect.

Step 4: The only statement that holds true across the board is that the fallopian tube is the most commonly affected, that is, the most common form of genital TB.

\[\boxed{\text{Most common type of genital TB}}\]