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Fig. 2B 48-year-old woman with right ovarian endometrioma. Axial
fat-suppressed T1-weighted gradient-echo image (TR/TE, 190/1.8; flip angle,
70°) (B) shows that right ovarian mass (arrow) has
homogeneous high signal intensity and (C) relative loss of signal
intensity on axial T2-weighted image (5,300/96) from hemorrhagic content of
endometrioma with intracellular methemoglobin causing typical T2 shading
(arrow). Contrast-enhanced imaging (not shown) confirmed absence of
enhancement.