Neupsy Key

Introduction Sarcoidosis is a chronic idiopathic, noninfectious, granulomatous disease characterized by the formation of noncaseating granulomas. It most commonly involves the lungs, skin, and lymph nodes, although any organ or…

Key WordsLumbar interbody fusion, Lumbar spine surgery, Spine fusion assessment   Introduction The ultimate goal of lumbar interbody fusion procedures is to relieve debilitating pain or prevent neurologic compromise. Fusion…

Introduction Ossification of the posterior longitudinal ligament (OPLL) is a slowly progressive disorder that can result in spinal stenosis and myelopathy. Myelopathy in patients with OPLL is related to both…

Introduction The diagnosis of spinal cord infarction (SCI) has changed significantly in the past decade, largely due to the contributions of neuroimaging. Historically SCI was considered to be rare, with…

Introduction Vertebral hemangiomas (VHs) are benign vascular tumors frequently encountered as incidental findings on computed tomography (CT) or magnetic resonance imaging (MRI). The vast majority are quiescent, with classic imaging…

Introduction Subacute progressive ascending myelopathy (SPAM) is an exceedingly rare and poorly understood complication of spinal cord injury. As the natural history of this process is quite peculiar, it is…

Key WordsKummel, Osteonecrosis, Vacuum Cleft, Osteoporosis, Vertebroplasty   Introduction Kummel disease was first described by Hermann Kummell in 1891 as delayed posttraumatic vertebral collapse occurring weeks or months after an…

Introduction The term syringomyelia was introduced by the French pathologist and clinician Charles-Prosper Ollivier d’Angers in 1827 to described cystic cavities in the spinal cord. More specifically, hydromyelia refers to…

Key WordsChordoma, Notochord, Ecchordosis physaliphora   Introduction Chordomas are unusual tumors with seemingly unconventional traits. Most notably, they are malignant primary bone tumors but not sarcomas. They derive from embryologic…

Introduction Infections of the spine are not uncommon in clinical practice. There are many terms used to describe essentially the same pathologic entity at different stages of evolution. In adults,…