Agostinho Lisa, Horta Mariana, Salvador João Cunha, Cunha Teresa Margarida
Hospital Beatriz Angelo - Radiologia, Loures, Portugal.
Instituto Português de Oncologia de Lisboa Francisco Gentil - Radiologia, Lisboa, Portugal.
Radiol Bras. 2019 Mar-Apr;52(2):106-111. doi: 10.1590/0100-3984.2018.0078.
Developments in magnetic resonance imaging have expanded its role in the assessment of the female pelvis, including the diagnosis of ovarian lesions. In this setting, diffusion-weighted imaging has proven its diagnostic value, which is particularly important in differentiating between benign and malignant ovarian tumors. In general, the latter show restricted diffusion, whereas the former do not. Exceptions include teratomas, endometriomas, hemorrhagic cysts, ovarian abscesses, ovarian infarction, and some benign stromal tumors. The aim of this review is to draw attention to benign ovarian lesions with restricted diffusion, with a special focus on diffusion-weighted imaging pearls and pitfalls.
磁共振成像的发展扩大了其在女性盆腔评估中的作用，包括卵巢病变的诊断。在这种情况下，扩散加权成像已证明其诊断价值，这在鉴别卵巢良恶性肿瘤方面尤为重要。一般来说，恶性肿瘤表现为扩散受限，而良性肿瘤则不然。例外情况包括畸胎瘤、子宫内膜瘤、出血性囊肿、卵巢脓肿、卵巢梗死以及一些良性间质瘤。本综述的目的是提请关注具有扩散受限的良性卵巢病变，特别关注扩散加权成像的要点和陷阱。
