Posted by : Selva
Saturday, May 27, 2023
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 . 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 daughte Renal hydatid infection
Renal hydatid infection is extremely rare and is seen in less than 5% of patients with hydatid disease1. Infection is caused by a parasitic zoonosis with the Echinococcus tape worm. The kidneys are the most commonly affected urinary organs, but bladder, prostate, seminal vesicles and testis can also be involved
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