Dermoid mesh: a sonographic sign of ovarian teratoma.

Malde, H M; Kedar, R P; Chadha, D; Nayak, Sunita

doi:10.2214/ajr.159.6.1442421

Cited by 29 publications

(16 citation statements)

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“…12 Another specific sign is "dermoid mesh," i.e., multiple linear hyperechoic interfaces produced by the floating hair fibers within the cyst. 13 However, our case did not have any of these classic features; instead, there were multiple round, floating, echogenic fat balls seen within the large anechoic cyst. Also, there was no calcification or toothlike structure shown on sonography and CT. On review of literature, we found only a small number of cases of cystic teratomas with multiple mobile spherical masses.…”

Section: Discussioncontrasting

confidence: 52%

Ovarian Cystic Teratoma

Rao

Shah

Patwardhan

et al. 2002

Journal of Ultrasound in Medicine

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Section: Discussioncontrasting

confidence: 52%

Ovarian Cystic Teratoma

Rao

Shah

Patwardhan

et al. 2002

Journal of Ultrasound in Medicine

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“…This sonographic feature refers to hyperechoic lines and dots arising from hairs in different orientations within the imaging plane, which is also called the “dermoid mesh” sign (Fig. 6) [27]. These lines and dots metaphorically resemble the diagrammatic representation of International Morse Code characters, with “dots” representing echoes generated by hairs perpendicular to the scan plane and “dashes” representing echoes from hairs parallel to the scan plane [28].…”

Section: Imaging Featuresmentioning

confidence: 99%

Mature cystic teratoma of the ovary: a cutting edge overview on imaging features

2017

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Mature cystic teratoma (MCT) is the most common neoplasm of the ovary and includes at least two well- differentiated germ cell layers. Different combinations of mature tissue derivatives with varying arrangements in the tumour cause a wide spectrum of radiological presentation ranging from a purely cystic mass to a complex cystic mass with a considerable solid component. In different imaging modalities, each radiological feature reflects a specific pathologic equivalent that forms because of diverse compositions of histological components. Understanding uncommon findings as well as the classic signs with basic knowledge of pathological equivalents permits a more accurate diagnosis and guides adequate treatment. In this review, radiological features of MCT in different imaging modalities (US, CT, MR imaging) including specific signs and useful radiological artefacts with brief emphasis on pathological basics are discussed. Teaching points • Ovarian mature cystic teratomas (MCTs) have a wide spectrum of radiological presentation.• Each radiological feature of MCT reflects a specific pathologic equivalent.• Understanding radiological signs with basic knowledge of pathology can permit a more accurate diagnosis.

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“…Çalışmamızda bu oranlara benzer şekilde sensitivite %81,8 ve spesifite %93,1 olarak saptanmıştır. Yayınlanan çalışmalarda akustik gölgelenmenin %90 [6], fokal ya da diffuz hiperekojen odakların %60, kılların oluşturduğu hiperekojen çizgilenmenin %60 [22] oranında görülebileceği belirtilmiştir. Çalışmamızda hiperekojen solid komponenti %89,5 olguda, hiperekojenik ince çizgilenmeye bağlı karışık ekojeniteyi %77,4 olguda saptamış olmamıza rağmen akustik gölgelenme sadece olguların %12,5'inde tespit edilmiştir.…”

Section: Discussionunclassified

The parameters affecting accuracy of e ultrasonographic diagnosis in dermoid cysts

Tekın¹,

Altınbaş²,

Dede³

et al. 2014

Diclemedj

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Objective: To determine the adequacy of ultrasound in diagnosis of dermoid cysts and to demonstrate the causes of ultrasonographic failure in histopathologically misdiagnosed cases. Methods: Of 245 consecutive patients, whom an adnexal mass is determined and the preliminary ultrasonographic diagnosis of the cyst was a dermoid csyt, were included in the study. Preoperative ultrasonographic findings and postoperative pathology results were evaluated and the correlation with pre-operative ultrasound imaging and final pathologic results were analyzed. Results: The diagnosis of a dermoid cyst with ultrasonography was detected with the following rates of sensitivity 81.8%, specifity 93.1%, positive predictive value 67.5%, negative predictive value 96.7%. A wall thickness greater than 3 mm (p=0.029), inner wall irregularity (p=0.001), mixed echogenity according to hyperechogenic lines p=0.003), solid component (p=0.001), acoustic shadowing (p=0.001), calcification (p=0.001), echogenic mural nodule (p=0.001), were found to be statistically significant (p<0.001) in ultrasonographic diagnosis of dermoid cysts. Determination of vascularity in Doppler sonography was not found statistically significant in diagnosis of dermoid cysts (p=0.52). Conclusion: Pattern recognition method is a method that evaluates and diagnoses adnexal masses by ultrasonography subjectively. It was shown to be more reliable with high accuracy rates in specific diagnosis of adnexial masses when compared to that of other methods. Even though hyperechogenic lines and hyperechogenic solid masses were characteristic findings for dermoid cysts, these parameters were found to be the most frequent causes of misdiagnosis.

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Dermoid mesh: a sonographic sign of ovarian teratoma.

Cited by 29 publications

References 0 publications

Ovarian Cystic Teratoma

Ovarian Cystic Teratoma

Mature cystic teratoma of the ovary: a cutting edge overview on imaging features

The parameters affecting accuracy of e ultrasonographic diagnosis in dermoid cysts

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