Mature cystic ovarian teratoma | Radiology Reference Article ...
2024年9月2日 · Ultrasound is the preferred imaging modality. Typically an ovarian dermoid is seen as a cystic adnexal mass with some mural components. Most lesions are unilocular. The spectrum of sonographic features includes: diffusely or partially echogenic mass with posterior sound attenuation owing to sebaceous material and hair within the cyst cavity
Ovarian Masses and O-RADS: A Systematic Approach to …
2021年5月4日 · Ultrasound and CT features of dermoids include cystic components, fatty elements, hair, and/or calcifications (Figure 2). Thus, a hyperechoic component with acoustic shadowing in a predominantly cystic mass on ultrasound is highly predictive of a dermoid cyst.
Ultrasound Evaluation of the Ovaries - Radiology Key
2019年2月16日 · Ovarian lesions with classic features of simple cysts, hemorrhagic cysts, endometriomas, or dermoids are highly likely to be benign. It is important to recognize the characteristic sonographic features that, when seen, are highly predictive of these benign entities.
Ultrasonography of ovarian masses using a pattern recognition approach ...
Mature cystic teratoma, often referred to as dermoid or dermoid cyst, typically shows focal high echogenic nodules, heterogeneous internal echoes in the cyst with acoustic shadows, and multiple hyperechoic fine lines and dots, which are due to reflection by clumps of hair, sebum, or fat component within the mass [20-22].
Roadmap to evaluate ovarian cysts - The Radiology Assistant
2011年5月15日 · Shown are transvaginal ultrasound images of two patients that demonstrate the 'tip-of-the-iceberg' sign: acoustic shadowing from the hyperechoic part of the dermoid cyst (arrow). When misinterpreted as bowel gas, the lesion may be overlooked.
Ovarian cystic lesions - The Radiology Assistant
In another case the transvaginal ultrasound shows the 'tip-of-the-iceberg' sign: acoustic shadowing from the hyperechoic part of the dermoid cyst. This may be misinterpreted as bowel gas and the lesion may be overlooked. A fat-fluid level may be present, caused by fat floating on more aqueous fluid.
Ultrasound of ovarian dermoids – sonographic findings of a dermoid cyst …
2015年12月31日 · Transvaginal ultrasound demonstrated a unilocular cystic lesion on the right ovary with dermoid mesh, the tip-of-the-iceberg sign and a dermoid plug (Figs. 1, 2). The endometrium measured 15 mm. Sonographic image demonstrating fat fluid level (A) and tip of the iceberg sign (B).
Expectant management of ultrasonically diagnosed ovarian dermoid cysts ...
2010年7月28日 · Bilateral ovarian dermoid cysts increased the odds of an operation by 18.39 (95% CI, 1.75–193.38) times relative to a unilateral left ovarian dermoid cyst. When bilateral cysts were compared against unilateral right cysts there was a similar trend, which was not statistically significant (Wald χ 2 (1) = 3.63, P = 0.057).
The characteristic ultrasound features of specific types of ovarian ...
In the hands of experienced examiners pattern recognition has a high sensitivity (77–86%) and specificity (94–100%) to diagnose teratomas/dermoid cysts, endometriomas, hydrosalpinges and peritoneal pseudocysts (13).
Imaging in gynecological disease (24): clinical and ultrasound ...
2022年3月22日 · We identified four new ultrasound features characteristic of MCT: ‘cotton wool tufts’, ‘mushroom cap sign’, ‘completely hyperechogenic lesion’ and ‘starry sky sign’. At least one classical or novel ultrasound feature was present in 315/334 (94.3%) MCTs.