Radiopaedia
@radiopaedia.org
Free online collaborative radiology resource. Articles, cases, courses, conference, podcast 🩻 #RadSky #MedSky
🎯 CXR: Rounded opacity partly obscuring the right heart border.
🎯 CT: Fat density mass at the right cardiophrenic angle extending through a right anterior
diaphragmatic defect.
🎯 Morgagni hernia.
👤 Craig Hacking, radiopaedia.org/cases/206397
🎯 CT: Fat density mass at the right cardiophrenic angle extending through a right anterior
diaphragmatic defect.
🎯 Morgagni hernia.
👤 Craig Hacking, radiopaedia.org/cases/206397
November 21, 2025 at 1:35 PM
🎯 CXR: Rounded opacity partly obscuring the right heart border.
🎯 CT: Fat density mass at the right cardiophrenic angle extending through a right anterior
diaphragmatic defect.
🎯 Morgagni hernia.
👤 Craig Hacking, radiopaedia.org/cases/206397
🎯 CT: Fat density mass at the right cardiophrenic angle extending through a right anterior
diaphragmatic defect.
🎯 Morgagni hernia.
👤 Craig Hacking, radiopaedia.org/cases/206397
❗️Quiz time! What can you see on this CXR? Drop your report into the comments and we'll share the answer tomorrow!
November 20, 2025 at 11:08 AM
❗️Quiz time! What can you see on this CXR? Drop your report into the comments and we'll share the answer tomorrow!
🎯 Retrosternal tearing chest pain
🩻 Dense pericardial effusion (yellow), crescentic high density sinotubular junction to arch [mural haematoma] (orange), ascending aortic dissection (green)
▶️ Acute aortic syndrome - emergency aortic root surgery
👤 Case: Craig Hacking radiopaedia.org/cases/206016
🩻 Dense pericardial effusion (yellow), crescentic high density sinotubular junction to arch [mural haematoma] (orange), ascending aortic dissection (green)
▶️ Acute aortic syndrome - emergency aortic root surgery
👤 Case: Craig Hacking radiopaedia.org/cases/206016
November 16, 2025 at 10:18 AM
🎯 Retrosternal tearing chest pain
🩻 Dense pericardial effusion (yellow), crescentic high density sinotubular junction to arch [mural haematoma] (orange), ascending aortic dissection (green)
▶️ Acute aortic syndrome - emergency aortic root surgery
👤 Case: Craig Hacking radiopaedia.org/cases/206016
🩻 Dense pericardial effusion (yellow), crescentic high density sinotubular junction to arch [mural haematoma] (orange), ascending aortic dissection (green)
▶️ Acute aortic syndrome - emergency aortic root surgery
👤 Case: Craig Hacking radiopaedia.org/cases/206016
🎯 Post liver tx; agitation, hypersalivation, dystonia & dysphagia
🧠 T2/FLAIR hyperintensity frontal lobes (orange), hippocampi (green), thalami, caudate (yellow), and pons
⚠️ Rapid deterioration. Rabies encephalitis confirmed on PCR & antibody testing
👤 Sara Alharbi, radiopaedia.org/cases/66201
🧠 T2/FLAIR hyperintensity frontal lobes (orange), hippocampi (green), thalami, caudate (yellow), and pons
⚠️ Rapid deterioration. Rabies encephalitis confirmed on PCR & antibody testing
👤 Sara Alharbi, radiopaedia.org/cases/66201
November 12, 2025 at 12:41 PM
🎯 Post liver tx; agitation, hypersalivation, dystonia & dysphagia
🧠 T2/FLAIR hyperintensity frontal lobes (orange), hippocampi (green), thalami, caudate (yellow), and pons
⚠️ Rapid deterioration. Rabies encephalitis confirmed on PCR & antibody testing
👤 Sara Alharbi, radiopaedia.org/cases/66201
🧠 T2/FLAIR hyperintensity frontal lobes (orange), hippocampi (green), thalami, caudate (yellow), and pons
⚠️ Rapid deterioration. Rabies encephalitis confirmed on PCR & antibody testing
👤 Sara Alharbi, radiopaedia.org/cases/66201
🎯 Painful abdo mass, undescended left testis
🩻 CT/MRI: Large mixed cystic-solid mass w/ enhancing solid parts, serpiginous vessels from left pelvis, absent left cord, enlarged para-aortic nodes
🧠 Histology: Seminoma from undescended testis
👤 Case via Magdi Mahsoub, radiopaedia.org/cases/207190
🩻 CT/MRI: Large mixed cystic-solid mass w/ enhancing solid parts, serpiginous vessels from left pelvis, absent left cord, enlarged para-aortic nodes
🧠 Histology: Seminoma from undescended testis
👤 Case via Magdi Mahsoub, radiopaedia.org/cases/207190
November 9, 2025 at 9:14 AM
🎯 Painful abdo mass, undescended left testis
🩻 CT/MRI: Large mixed cystic-solid mass w/ enhancing solid parts, serpiginous vessels from left pelvis, absent left cord, enlarged para-aortic nodes
🧠 Histology: Seminoma from undescended testis
👤 Case via Magdi Mahsoub, radiopaedia.org/cases/207190
🩻 CT/MRI: Large mixed cystic-solid mass w/ enhancing solid parts, serpiginous vessels from left pelvis, absent left cord, enlarged para-aortic nodes
🧠 Histology: Seminoma from undescended testis
👤 Case via Magdi Mahsoub, radiopaedia.org/cases/207190
🎧 🎙️ Episode 72 of The Reading Room is out!
Michael Nel joins us for a CT physics deep dive; iterative reconstruction, dual energy CT, photon-counting CT & more.
Plus: Frank’s edamame story, clear ice chaos & why “gullible” got cancelled.
🎧 radiopaedia.org/podcast
Michael Nel joins us for a CT physics deep dive; iterative reconstruction, dual energy CT, photon-counting CT & more.
Plus: Frank’s edamame story, clear ice chaos & why “gullible” got cancelled.
🎧 radiopaedia.org/podcast
November 6, 2025 at 12:20 PM
🎧 🎙️ Episode 72 of The Reading Room is out!
Michael Nel joins us for a CT physics deep dive; iterative reconstruction, dual energy CT, photon-counting CT & more.
Plus: Frank’s edamame story, clear ice chaos & why “gullible” got cancelled.
🎧 radiopaedia.org/podcast
Michael Nel joins us for a CT physics deep dive; iterative reconstruction, dual energy CT, photon-counting CT & more.
Plus: Frank’s edamame story, clear ice chaos & why “gullible” got cancelled.
🎧 radiopaedia.org/podcast
🎯 Longstanding diarrhoea, weight loss, and iron deficiency anaemia. CT shows jejunoileal fold reversal with mild ileal dilatation and mesenteric nodes. Biopsy confirmed coeliac disease. Specific sign seen on CT, MRI, or small bowel studies.
👤 Mohammad Taghi Niknejad, radiopaedia.org/cases/201964
👤 Mohammad Taghi Niknejad, radiopaedia.org/cases/201964
November 4, 2025 at 1:23 PM
🎯 Longstanding diarrhoea, weight loss, and iron deficiency anaemia. CT shows jejunoileal fold reversal with mild ileal dilatation and mesenteric nodes. Biopsy confirmed coeliac disease. Specific sign seen on CT, MRI, or small bowel studies.
👤 Mohammad Taghi Niknejad, radiopaedia.org/cases/201964
👤 Mohammad Taghi Niknejad, radiopaedia.org/cases/201964
🩺 Clinical: Painful swelling anteromedial distal thigh with limited knee movement.
🦴 X-ray: Sclerotic lesion with wide transition zone and Codman triangle in distal femur.
🧲 MRI: Soft tissue mass with periosteal reaction.
🧬 Dx: High-grade osteosarcoma.
👤 Lam Van Le, radiopaedia.org/cases/204898
🦴 X-ray: Sclerotic lesion with wide transition zone and Codman triangle in distal femur.
🧲 MRI: Soft tissue mass with periosteal reaction.
🧬 Dx: High-grade osteosarcoma.
👤 Lam Van Le, radiopaedia.org/cases/204898
October 27, 2025 at 11:40 AM
🩺 Clinical: Painful swelling anteromedial distal thigh with limited knee movement.
🦴 X-ray: Sclerotic lesion with wide transition zone and Codman triangle in distal femur.
🧲 MRI: Soft tissue mass with periosteal reaction.
🧬 Dx: High-grade osteosarcoma.
👤 Lam Van Le, radiopaedia.org/cases/204898
🦴 X-ray: Sclerotic lesion with wide transition zone and Codman triangle in distal femur.
🧲 MRI: Soft tissue mass with periosteal reaction.
🧬 Dx: High-grade osteosarcoma.
👤 Lam Van Le, radiopaedia.org/cases/204898
🎯 History: Abdominal pain.
🎯 CT: Bilateral rectus sheath haematomas with increased muscle density. No definite bleeding point (no arterial phase). No intra-abdominal extension.
🎯 Usually unilateral, most often spontaneous in patients on anticoagulation.
👤 Ian Bickle, radiopaedia.org/cases/206404
🎯 CT: Bilateral rectus sheath haematomas with increased muscle density. No definite bleeding point (no arterial phase). No intra-abdominal extension.
🎯 Usually unilateral, most often spontaneous in patients on anticoagulation.
👤 Ian Bickle, radiopaedia.org/cases/206404
October 24, 2025 at 5:32 AM
🎯 History: Abdominal pain.
🎯 CT: Bilateral rectus sheath haematomas with increased muscle density. No definite bleeding point (no arterial phase). No intra-abdominal extension.
🎯 Usually unilateral, most often spontaneous in patients on anticoagulation.
👤 Ian Bickle, radiopaedia.org/cases/206404
🎯 CT: Bilateral rectus sheath haematomas with increased muscle density. No definite bleeding point (no arterial phase). No intra-abdominal extension.
🎯 Usually unilateral, most often spontaneous in patients on anticoagulation.
👤 Ian Bickle, radiopaedia.org/cases/206404
🎯 Lowered GCS
🩻 MRI: Bilateral thalamic high T2 signal indicating acute infarcts
🧠 Likely artery of Percheron infarction due to thromboembolism
🔍 Vessel usually not visualised; diagnosis inferred from pattern & exclusion of other causes
👤 Frank Gaillard radiopaedia.org/cases/80587
🩻 MRI: Bilateral thalamic high T2 signal indicating acute infarcts
🧠 Likely artery of Percheron infarction due to thromboembolism
🔍 Vessel usually not visualised; diagnosis inferred from pattern & exclusion of other causes
👤 Frank Gaillard radiopaedia.org/cases/80587
October 21, 2025 at 1:27 PM
🎯 Lowered GCS
🩻 MRI: Bilateral thalamic high T2 signal indicating acute infarcts
🧠 Likely artery of Percheron infarction due to thromboembolism
🔍 Vessel usually not visualised; diagnosis inferred from pattern & exclusion of other causes
👤 Frank Gaillard radiopaedia.org/cases/80587
🩻 MRI: Bilateral thalamic high T2 signal indicating acute infarcts
🧠 Likely artery of Percheron infarction due to thromboembolism
🔍 Vessel usually not visualised; diagnosis inferred from pattern & exclusion of other causes
👤 Frank Gaillard radiopaedia.org/cases/80587
🎧 🎙️ Ep 70 of The Reading Room is out! Andrew is joined by Christine (& a bonus guest) to discuss the imaging investigation of primary hyperparathyroidism. Ultrasound, 4D-CT and nuclear medicine. Plus, Frank reviews a gory MRI scene from the latest Final Destination movie!
🎧 radiopaedia.org/podcast
🎧 radiopaedia.org/podcast
October 19, 2025 at 9:34 AM
🎧 🎙️ Ep 70 of The Reading Room is out! Andrew is joined by Christine (& a bonus guest) to discuss the imaging investigation of primary hyperparathyroidism. Ultrasound, 4D-CT and nuclear medicine. Plus, Frank reviews a gory MRI scene from the latest Final Destination movie!
🎧 radiopaedia.org/podcast
🎧 radiopaedia.org/podcast
🎯 Child with port-wine stain → MRI: R hemisphere atrophy, tram-track calcification, abnormal venous drainage, thickened calvarium.
➡️ Sturge-Weber syndrome
👤 Courtesy Dr Magdi Mahsoub radiopaedia.org/cases/204465
#radsky
➡️ Sturge-Weber syndrome
👤 Courtesy Dr Magdi Mahsoub radiopaedia.org/cases/204465
#radsky
October 3, 2025 at 12:37 PM
🎯 Child with port-wine stain → MRI: R hemisphere atrophy, tram-track calcification, abnormal venous drainage, thickened calvarium.
➡️ Sturge-Weber syndrome
👤 Courtesy Dr Magdi Mahsoub radiopaedia.org/cases/204465
#radsky
➡️ Sturge-Weber syndrome
👤 Courtesy Dr Magdi Mahsoub radiopaedia.org/cases/204465
#radsky
🎯 Pelvic pain, ↑ ALP, normal Ca/PO4
🎯 X-ray/CT: sacral expansion, coarse trabeculae, thickened ileopectineal line
➡️ Paget disease
👤 Case courtesy Mohammad Taghi Niknejad
🔗 radiopaedia.org/cases/203678
🎯 X-ray/CT: sacral expansion, coarse trabeculae, thickened ileopectineal line
➡️ Paget disease
👤 Case courtesy Mohammad Taghi Niknejad
🔗 radiopaedia.org/cases/203678
September 17, 2025 at 4:25 PM
🎯 Pelvic pain, ↑ ALP, normal Ca/PO4
🎯 X-ray/CT: sacral expansion, coarse trabeculae, thickened ileopectineal line
➡️ Paget disease
👤 Case courtesy Mohammad Taghi Niknejad
🔗 radiopaedia.org/cases/203678
🎯 X-ray/CT: sacral expansion, coarse trabeculae, thickened ileopectineal line
➡️ Paget disease
👤 Case courtesy Mohammad Taghi Niknejad
🔗 radiopaedia.org/cases/203678
🎧 🎙️ New ep: thoracic radiologists Jeffrey Kanne, Miranda Siemienowicz & Jonathan Chung on the global state of lung cancer screening, plus tips for reading the studies. Andrew & Frank cover everything but nodules: journal travesties, TB sniffer rats & ketamine epiphanies.
🎧 radiopaedia.org/podcast
🎧 radiopaedia.org/podcast
September 2, 2025 at 7:25 AM
🎧 🎙️ New ep: thoracic radiologists Jeffrey Kanne, Miranda Siemienowicz & Jonathan Chung on the global state of lung cancer screening, plus tips for reading the studies. Andrew & Frank cover everything but nodules: journal travesties, TB sniffer rats & ketamine epiphanies.
🎧 radiopaedia.org/podcast
🎧 radiopaedia.org/podcast
👨🚀🚀 It’s day 5 of Radiopaedia 2025! A day packed with important clinical-adjacent insights.
Last chance register at radiopaedia.org/courses/radi...
Last chance register at radiopaedia.org/courses/radi...
July 25, 2025 at 1:35 AM
👨🚀🚀 It’s day 5 of Radiopaedia 2025! A day packed with important clinical-adjacent insights.
Last chance register at radiopaedia.org/courses/radi...
Last chance register at radiopaedia.org/courses/radi...
July 23, 2025 at 3:48 AM
July 22, 2025 at 11:44 PM
👩🚀🚀 Day 2 of Radiopaedia 2025 is in full swing! Lectures, panel discussions, and cases where you can scroll alongside the speaker!
Sign up at radiopaedia.org/courses/radi...
Sign up at radiopaedia.org/courses/radi...
July 22, 2025 at 5:19 AM
👩🚀🚀 Day 2 of Radiopaedia 2025 is in full swing! Lectures, panel discussions, and cases where you can scroll alongside the speaker!
Sign up at radiopaedia.org/courses/radi...
Sign up at radiopaedia.org/courses/radi...
On the Radiopaedia 2025 live page: neuroradiology workshop.
Checkiut the full schedule at radiopaedia.org/courses/radi...
Checkiut the full schedule at radiopaedia.org/courses/radi...
July 21, 2025 at 4:50 AM
On the Radiopaedia 2025 live page: neuroradiology workshop.
Checkiut the full schedule at radiopaedia.org/courses/radi...
Checkiut the full schedule at radiopaedia.org/courses/radi...
July 21, 2025 at 12:45 AM
🚀 3 days until #Radiopaedia2025!
MSK 🦴 case: 50M MVC, unresponsive.
CT: C1–C2 fusion, C1 fractures, severe atlanto-occipital dissociation (basion-dens 2.7 cm) + extensive cervical spinal haemorrhage.
👤 Ryan Thibodeau, radiopaedia.org/cases/204990
Conference: radiopaedia.org/courses/radi...
MSK 🦴 case: 50M MVC, unresponsive.
CT: C1–C2 fusion, C1 fractures, severe atlanto-occipital dissociation (basion-dens 2.7 cm) + extensive cervical spinal haemorrhage.
👤 Ryan Thibodeau, radiopaedia.org/cases/204990
Conference: radiopaedia.org/courses/radi...
July 18, 2025 at 1:23 PM
🚀 3 days until #Radiopaedia2025!
MSK 🦴 case: 50M MVC, unresponsive.
CT: C1–C2 fusion, C1 fractures, severe atlanto-occipital dissociation (basion-dens 2.7 cm) + extensive cervical spinal haemorrhage.
👤 Ryan Thibodeau, radiopaedia.org/cases/204990
Conference: radiopaedia.org/courses/radi...
MSK 🦴 case: 50M MVC, unresponsive.
CT: C1–C2 fusion, C1 fractures, severe atlanto-occipital dissociation (basion-dens 2.7 cm) + extensive cervical spinal haemorrhage.
👤 Ryan Thibodeau, radiopaedia.org/cases/204990
Conference: radiopaedia.org/courses/radi...
🎧 🎙️ Episode 67 of The Reading Room is out!
Matt Skalski chats with Erin Alaia about new MRI terms in MSK infection: discordant marrow, penumbra sign, devitalised tissue & more.
Plus: mushrooms, huntsman spiders, personality types & a Lyme disease rant from Frank.
🎧 radiopaedia.org/podcast
Matt Skalski chats with Erin Alaia about new MRI terms in MSK infection: discordant marrow, penumbra sign, devitalised tissue & more.
Plus: mushrooms, huntsman spiders, personality types & a Lyme disease rant from Frank.
🎧 radiopaedia.org/podcast
July 17, 2025 at 7:50 AM
🎧 🎙️ Episode 67 of The Reading Room is out!
Matt Skalski chats with Erin Alaia about new MRI terms in MSK infection: discordant marrow, penumbra sign, devitalised tissue & more.
Plus: mushrooms, huntsman spiders, personality types & a Lyme disease rant from Frank.
🎧 radiopaedia.org/podcast
Matt Skalski chats with Erin Alaia about new MRI terms in MSK infection: discordant marrow, penumbra sign, devitalised tissue & more.
Plus: mushrooms, huntsman spiders, personality types & a Lyme disease rant from Frank.
🎧 radiopaedia.org/podcast
🚀 5 days until #Radiopaedia2025! Check out this abdomen case from speaker Ed Godfrey.
25 yo with epigastric pain → CT day 1 acute pancreatitis; CT day 9 shows necrosis and splenic vein thrombosis.
Case: radiopaedia.org/cases/206201
Register: radiopaedia.org/courses/radi...
25 yo with epigastric pain → CT day 1 acute pancreatitis; CT day 9 shows necrosis and splenic vein thrombosis.
Case: radiopaedia.org/cases/206201
Register: radiopaedia.org/courses/radi...
July 16, 2025 at 1:53 PM
🚀 5 days until #Radiopaedia2025! Check out this abdomen case from speaker Ed Godfrey.
25 yo with epigastric pain → CT day 1 acute pancreatitis; CT day 9 shows necrosis and splenic vein thrombosis.
Case: radiopaedia.org/cases/206201
Register: radiopaedia.org/courses/radi...
25 yo with epigastric pain → CT day 1 acute pancreatitis; CT day 9 shows necrosis and splenic vein thrombosis.
Case: radiopaedia.org/cases/206201
Register: radiopaedia.org/courses/radi...
🚀 6 days until #Radiopaedia2025!
Check out this chest 🫁 case: 75M with TB develops sudden dyspnoea → pneumothorax + bronchopleural fistula.
👤 Vivian Hooi radiopaedia.org/cases/197243
📅 Conference July 21–25 → radiopaedia.org/courses/radi...
Check out this chest 🫁 case: 75M with TB develops sudden dyspnoea → pneumothorax + bronchopleural fistula.
👤 Vivian Hooi radiopaedia.org/cases/197243
📅 Conference July 21–25 → radiopaedia.org/courses/radi...
July 15, 2025 at 2:08 PM
🚀 6 days until #Radiopaedia2025!
Check out this chest 🫁 case: 75M with TB develops sudden dyspnoea → pneumothorax + bronchopleural fistula.
👤 Vivian Hooi radiopaedia.org/cases/197243
📅 Conference July 21–25 → radiopaedia.org/courses/radi...
Check out this chest 🫁 case: 75M with TB develops sudden dyspnoea → pneumothorax + bronchopleural fistula.
👤 Vivian Hooi radiopaedia.org/cases/197243
📅 Conference July 21–25 → radiopaedia.org/courses/radi...
🚀 7 days to #Radiopaedia2025!
Check out this neuro case 🧠
20 y/o with proptosis + pulsatile tinnitus → carotid-cavernous fistula (Barrow A).
More like this, July 21–25.
👤 Lam Van Le, radiopaedia.org/cases/199093
Check out this neuro case 🧠
20 y/o with proptosis + pulsatile tinnitus → carotid-cavernous fistula (Barrow A).
More like this, July 21–25.
👤 Lam Van Le, radiopaedia.org/cases/199093
July 14, 2025 at 5:42 PM
🚀 7 days to #Radiopaedia2025!
Check out this neuro case 🧠
20 y/o with proptosis + pulsatile tinnitus → carotid-cavernous fistula (Barrow A).
More like this, July 21–25.
👤 Lam Van Le, radiopaedia.org/cases/199093
Check out this neuro case 🧠
20 y/o with proptosis + pulsatile tinnitus → carotid-cavernous fistula (Barrow A).
More like this, July 21–25.
👤 Lam Van Le, radiopaedia.org/cases/199093