Figure 8b. Tubo-ovarian abscess. Axial T2-weighted (a) and contrast-enhanced fat-suppressed T1-weighted (b) images show a tortuous mass of the right adnexa. The mass consists of an ovarian abscess (short arrow) and hydrosalpinx (arrowheads), which demonstrate marked perilesion enhancement. Adenomyosis is incidentally seen in the posterior myometrium (long arrow).