Multinodular goitre. A. Transverse dual ultrasound image shows enlargament of thyroid lobes and isthmus and multiple hyperechoic solid nodules with uniform thin halo (arrows). Mixed solid and cystic thyroid nodule in the left lobe. Tr: tracheal gas shadow. B. Transverse sonogram and color-doppler mode scan show a well-defined isoechoic thyroid nodule with thin complete hypoechoic halo, intranodular cystic/colloid space and peripheral vascularity, findings indicative of a hyperplastic nodule.
Acute cholecystitis refers to the acute inflammation of the gallbladder. It is the primary complication of cholelithiasis and the most common cause of acute pain in the right upper quadrant (RUQ). Clinical presentation Constant right upper quad.