Solution to Unknown Case # 7 – Focal Orchitis with Pyocele
History: Adolescent male with scrotal pain. This is a case of focal orchitis with pyocele, which characteristically appears as an ill-defined hypoechoic heterogenous lesion in the testicle on grayscale ultrasound, with increased flow on color Doppler ultrasound. This is distinguished from an intratesticular abscess by having internal flow on Doppler ultrasound. Intratesticular abscess would be […]
Solution to Unknown Case # 6 – Subclavian Steal Syndrome
History: 60 year old female with arm pain. This is a case of subclavian steal syndrome. Subclavian steal syndrome occurs when there is an occluded subclavian artery and collateral blood flow to the distal subclavian artery and arm is provided by reversed flow in the ipsilateral vertebral artery. As seen in the MR angiogram image […]
Solution to Unknown Case #5 – Calyceal Diverticulum
History: 16 year old female with recurrent flank pain. This is the appearance of a calyceal diverticulum, which is a small outpouching or eventration of a calyx into the renal parenchyma. They are usually connected by a narrow channel to the renal pelvis, as seen in the IVP image above. A calyceal diverticulum can be […]
Solution to Unknown Case #2 – Bronchogenic Cyst
History: 40 year old male with cough. This is a case of a bronchogenic cyst, which is a congenital lesion thought to arise from abnormal budding of the foregut during development, and it is classified as a foregut duplication cyst along with enteric and neurenteric cysts. Many bronchogenic cysts are asymptomatic and not discovered until […]
Solution to Unknown Case 1 – Indirect Sign of Deep Vein Thrombosis
History: 50 year old male with lower extremity swelling. This is an indirect sign of a deep vein thrombosis. Normally, flow within the deep venous system is low resistance with variation during inspiration and expiration as central venous pressure changes with the respiratory cycle and cardiac cycle (as is seen in the first image above […]