Radiology Lectures | Radquarters

In this radiology lecture, we review the ultrasound appearance of pleomorphic adenoma of the parotid gland! Key teaching points include: Pleomorphic adenoma AKA benign mixed tumor. Most common salivary gland tumor, most common benign salivary gland tumor, and most common in the parotid gland. Most common in patients aged 40-50, slightly more common in females. For salivary gland masses in adults,...

In this radiology lecture, we review the ultrasound appearance of epidermal inclusion cyst! Key teaching points include: Epidermal inclusion cyst is the most common cutaneous cyst. Can occur anywhere: Head, neck, trunk, extremities. Benign, keratin-containing cyst lined by a wall of stratified squamous epithelium. On ultrasound, appears as a well-circumscribed, round to oval mass with broad (50%)...

In this radiology lecture, we review the ultrasound appearance of torsion of the appendix testis and appendix epididymis! Key teaching points include: Appendix testis is a vestigial appendage usually located between upper pole of testis and head of epididymis. AKA hydatid of Morgagni, the appendix testis is commonly present as a normal finding. Appendix epididymis typically arises from epididymal...

In this radiology lecture, we review the ultrasound appearance of Hashimoto’s thyroiditis with three unique cases! Key teaching points include: Normal thyroid gland isthmus measures less than 0.4 cm, transverse and AP lobe diameters measure less than 2 cm.  Hashimoto’s thyroiditis is an autoimmune thyroiditis caused by antibodies to thyroid proteins. Most common in middle-aged females. May co...

In this radiology lecture, we review the ultrasound appearance of acute appendicitis with three unique cases! Key teaching points include: Ultrasound is the first-line imaging modality in pediatric and pregnant patients due to lack of ionizing radiation: Sensitivity/specificity approximately 80%. Technique: Linear transducer with graded compression at site of maximal tenderness using gradual incre...

In this radiology lecture, we review the ultrasound appearance of thyroglossal duct cyst with two unique cases Key teaching points include: Thyroglossal duct cyst is the most common congenital neck cyst. Most present before age 18 as a midline, fluctuant neck mass near hyoid bone. Often asymptomatic unless superinfected = Abscess, draining sinus. Epithelial-lined cysts caused by failure of normal...

In this radiology lecture, we review the ultrasound appearance of scrotal varicocele with three unique cases. Key teaching points include: Varicocele is abnormal dilatation of pampiniform venous plexus = Peritesticular veins. Seen in up to 15% of adult and adolescent males. Caused by incompetent or absent testicular vein valves. Upper limit of normal for scrotal vein caliber = 2 mm, varicocele whe...

In this radiology lecture, we review the ultrasound appearance of Achilles tendinosis, partial thickness tears and full thickness tears through four unique cases. Key teaching points include: Achilles tendon is strongest in body. Originates from soleus and gastrocnemius muscles, inserts onto posterior calcaneal tuberosity. Achilles tendon tears = Most common ankle tendon injury. Tendon enlargement...

Join us in this interactive video lecture as we present a total of 5 unknown thoracic imaging cases followed by a diagnosis reveal and key teaching points after each case, all in about 5(ish) minutes! Click the YouTube Community tab or follow on social media for bonus teaching material posted throughout the week! Website: https://radiologisthq.com/ Instagram: https://www.instagram.com/radiologistH...

In this video lecture, we review the appearance of the liver on multiphase CT & MRI. A basic approach to image interpretation is presented with pitfalls to avoid. Key points include: The three major liver postcontrast phases include the late hepatic arterial phase, portal venous phase, and delayed/equilibrium phases. The hepatic artery enhances first, followed by the portal veins, then the hep...

In this video lecture, we discuss the ultrasound and computed tomography appearance of pelvic inflammatory disease (PID). Topics include: 1) Early findings of PID, including haziness of pelvic fat, salpingitis, oophoritis, and endometritis. 2) Importance of identifying dilated fallopian tubes by the characteristic “C” or “S” shape that they exhibit, as well as the presence of the “cogwheel” sign....