"Chronic inflammation and fibrosis of the involved salpinx results in fimbrial or ostial occlusion; lack of outflow results in fluid accumulation, leading to tubal distension and progressive mural distension and effacement. The endosalpingeal folds are also involved, flattening and eventually fibrosing. These fibrotic, irregular structures appear as 2-3 mm mural nodules protruding into the tubal lumen 1."
"Chronic inflammation and fibrosis of the involved salpinx results in fimbrial or ostial occlusion; lack of outflow results in fluid accumulation, leading to tubal distension and progressive mural distension and effacement. The endosalpingeal folds are also involved, flattening and eventually fibrosing. These fibrotic, irregular structures appear as 2-3 mm mural nodules protruding into the tubal lumen 1."