A Revealing Abdominal Radiograph

Perforation of a viscus
A patient presents with abdominal pain. Can you interpret the plain-film radiograph showing free intraperitoneal gas and identify the underlying diagnosis?
Read more

A Puzzling Gaze Deviation

Right sixth cranial nerve palsy
A patient presents with an inability to move their right eye outward. Explore the clinical signs and diagnosis of this specific horizontal gaze palsy.
Read more

Mysterious Air Around the Kidney

Duodenal perforation
A CT scan reveals air around the right kidney and retroperitoneum. What could be the cause? Explore the diagnosis of this surprising radiological finding.
Read more

What’s Below the Foramen Magnum?

Chiari I malformation
Explore a case of tonsillar herniation on a T1-weighted MRI. Learn about the diagnosis and management of this common posterior fossa abnormality.
Read more

Decoding a ‘Miliary’ Pattern on Chest CT

Tuberculosis
A 20-year-old man presents with fever. Chest CT reveals innumerable tiny lung nodules. Explore the diagnosis and management of a miliary pattern.
Read more

A Worm From a Mosquito Bite?

Dirofilaria repens
Learn about a zoonotic filarial nematode transmitted by mosquitoes, causing subcutaneous nodules and sometimes migrating to the eye. What is this parasite?
Read more

Hypertension & an Adrenal Mass

Pheochromocytoma
Explore the diagnostic workup for a patient with hypertension who is found to have a 4.5 cm contrast-enhancing right adrenal mass on imaging.
Read more

Puzzling Dots on a Blood Smear

Lead poisoning
Explore a case of basophilic stippling on a blood smear. Learn about the underlying systemic toxicity, its diagnosis, and management with chelation therapy.
Read more

A Fatal Rash and New-Onset Diabetes

Necrolytic migratory erythema
Explore the case of a patient with new-onset hyperglycemia presenting with distinct purplish skin lesions. Learn about this rare but serious dermatosis.
Read more

A Fiery Hand Mystery

Erythromelalgia
A patient experiences severe right hand pain, redness, and swelling triggered by movement, bathing, and exercise. Explore the differential diagnosis.
Read more