Contrast Enhancing Mediastinal Mass Mnemonic – CAPT CAPT
This mnemonic is commonly used to recall the differential diagnosis for contrast enhancing mediastinal masses: CAPT CAPT C – Carcinoid tumor A – Aneurysm P – Paraganglioma T – Thyroid C – Castleman A – Anuerysm (I know, its mentioned twice because you definitely don’t want to miss this one) P – Parathyroid T – […]
Lipohemarthrosis
History: middle aged male with knee pain. This is a case of lipohemarthrosis beautifully demonstrated on MRI. Lipohemarthrosis is simply the presence of fat and blood in a joint effusion (see a large knee joint effusion here), and it typically is caused by a fracture at the articular surface of a joint that extends into […]
Subtrochanteric Femur Fracture
History: middle aged male with trauma. This is a subtrochanteric fracture of the femur. The above image is a 3D reconstruction from the raw data of a CT of the abdomen and pelvis, such that the patient did not have to undergo additional scanning and radiation exposure to get this image of the femur. See […]
Pars Defects – Spondylolysis
History: young adult male with back pain. This is a case of a pars interartcularis defect with anterolisthesis, also called spondylolysis with spondylolisthesis. These injuries are thought to be due to chronic repetitive stress at the pars interarticularis, and most commonly occur at the L5-S1 level. It is best demonstrated on oblique radiographs of the […]
Nails Driven Into Head by Nail Gun
History: Construction worker accident. This happened in 2005 to a construction worker in Southern California. He had fallen off the roof of a home onto another worker operating the nail gun. At that point, the nail gun discharge six nails into his face, head and neck. Some of the nails penetrated his brain and came […]
Eel Chewed Through Colon
This is not one of my personal cases, but I found this at the link below the images and had to share it. History: China‘s southeastern Guangdong province admitted himself to a local hospital after he reportedly got a live eel stuck inside him. http://www.huffingtonpost.com/2013/04/09/eel-removed-from-man-stuck-colon-photo_n_3046785.html
Pediatric Ankle Anatomy
The following images are from WikiRadiography (WetPaint) here.
Pediatric Hand Anatomy
The following images are from WikiRadiography (Wet Paint) here.
Bone Infarcts
History: 55 year old male with knee pain. This is a classic example of bone infarcts, here called osteonecrosis of the knee, which on radiographs is represented as a well defined sclerotic lesion with serpentine margins. In our example, the articular surfaces are mildly distorted, more so on the tibial plateau, causing collapse. On MRI, […]
Pediatric Elbow Anatomy
The following images are from WikiRadiography (WetPaint) here. See a lateral epicondyle avulstion fracture here.