Daily Challenge

What is the double-barrel shotgun sign?

What is the taller-than-wide criterion in thyroid nodule assessment?

What is the normal endometrial thickness in the secretory phase?

What is the normal gestational age range for 1st trimester anatomy survey?

A 34-week pregnant patient with a history of gestational diabetes presents for a growth ultrasound. Fetal biometry shows an estimated fetal weight (EFW) at the 97th percentile, with an abdominal circumference (AC) measuring significantly larger than expected for gestational age. The head circumference (HC) is appropriate. What is the most likely diagnosis?

A 22-week fetal echocardiogram is performed due to a family history of congenital heart disease. The four-chamber view appears normal, and the great arteries show normal crossover. However, on evaluation of the aortic arch, the ductus arteriosus is noted to arise from the descending aorta, but the left subclavian artery originates directly from the ductus arteriosus, rather than the aortic arch. What is the most likely diagnosis?

During a breast ultrasound, a sonographer identifies a 1.2 cm hypoechoic mass with irregular margins, posterior acoustic shadowing, and microcalcifications. Color Doppler shows internal vascularity. What is the most appropriate management recommendation based on these findings?

What is the vertebral artery steal syndrome?

What is the De Quervain tenosynovitis on MSK ultrasound?

During an eFAST examination of a trauma patient, you identify an anechoic stripe between the liver and the right kidney in Morison's pouch. What is the most appropriate next step in management?

What is the comet-tail artifact?