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  • Title: HDLive ultrasound images of ovarian dermoid cysts: diagnostic accuracy.
    Author: Bonilla-Musoles F, Cadete C, Raga F, Bonilla F, Osborne NG, Caballero O.
    Journal: Clin Exp Obstet Gynecol; 2016; 43(1):16-24. PubMed ID: 27048012.
    Abstract:
    OBJECTIVE: To demonstrate that the use of 3D/4D HDLive increases the image quality in the diagnosis of benign cystic ovarian teratomas. MATERIALS AND METHODS: 3D/HDLive ultrasound (US) was used in 31 cases of suspected ovarian cystic teratoma using vaginal 2D US. The following pathognomonic images of mature cystic teratomas were considered for diagnosis: 1) a cystic, unilocular lesion with a densely echogenic tubercle (Rokitansky nodule); 2) a diffuse or partially echogenic mass usually demonstrating sound attenuation; 3) fluid-fluid/fat-fluid levels; 4) dermoid mesh with hyperechogenic calcifications indicating the presence of bone, teeth, or other ectodermally-derived structure; 5) multiple mobile spherical structures (fat globules). RESULTS: Dermoids present a wide spectrum of images depending on the predominant tissue type. In the vast majority of cases there are dense echogenic structures that correspond to complex masses of fatty tissue, sebum, hair, epithelial remnants, along with cartilage or bone. If we catalogue all the images together, the pathognomonic of dermoid are: 1) cystic or solid cystic lesions with a Rokitansky nodule, with bone, teeth or cartilage (six cases, 22.2%); 2) a solid mass with or without attenuation that corresponds with pure sebum (five cases, 18.5%); 3) a diffuse mass with fine bands that correspond with hair inside sebum (four cases, 12.9%) and that may form meshes or plugs corresponding with a mixture of fat, sebum, and hair (three cases, 11.5%). CONCLUSIONS: HDLive U.S. provides some images of exceptional quality that enhance the definition of the structures of these tumors (fat, hair, cartilage, bone, etc.) compared to 2D/3D/4D.
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