Ball of wool sign (hydatid cyst)

Ball of wool

sign (hydatid cyst) • Hepatic hydatid cyst - Ganzer Fall bei Radiopaedia

Qureshi, P. Hepatic hydatid cyst. Case study, Radiopaedia.org. (accessed on 02 Nov 2022) https://doi.org/10.53347/rID-68473 • CC by-nc-sa 3.0 (modified)

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The ball of wool sign, also referred to as the yarn sign or congealed water lily sign, is an ultrasound appearance, representing degeneration of hydatid cysts (WHO class CE 4). The inner side of the cyst detaches from the cyst wall and folds on itself, causing a change from anechoic (fluid) to a solid, hyperechoic appearance without internal septations or daughter cysts .

Siehe auch:

Wasserlilien-Zeichen

Assoziationen und Differentialdiagnosen zu Ball of wool sign (hydatid cyst):

Wasserlilien-Zeichen

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