USS in diagnosing cysts Flashcards Preview

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Flashcards in USS in diagnosing cysts Deck (4)
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1

USS parameters of simple cyst

- Round or oval shape
- Thin or imperceptible wall
- Posterior acoustic enhancement
- Anechoic fluid
- Absence of septations or nodules

2

USS features of complex cyst

- Complete septation (i.e. multilocular cyst)
- Solid nodules
- Papillary projections
- Malignant masses have neo vascularity

3

% risk of malignancy with complex features

- 8% for multilocular
- 36–39% for lesions with solid elements

4

TV USS and specificity for malignancy

- Sensitivity of 89%
- Specificity of 73%