ABSTRACT
Spinal vascular malformations (AVMs) are rare but important causes of treatable myelopathies. Recent advances in the interventional neuroradiology and neurosurgical techniques have improved the delineation and classification of these heterogeneous lesions. Because MR imaging usually is the first screening test for patients with myelopathy, the neuroradiologist must have a high level of knowledge of the common imaging characteristics of these lesions. This article reviews MR angiographic literature about spinal AVMs, Type I-IV AVMs and cervical Type I AVMs, describes their pathophysiology and common imaging characteristics, and elaborates on differences in cervical location from more typical positions.
Subject(s)
Arteriovenous Malformations/pathology , Magnetic Resonance Imaging , Spinal Cord/blood supply , Arteries/pathology , Arteriovenous Malformations/diagnosis , Cervical Vertebrae/pathology , Diagnosis, Differential , Humans , Magnetic Resonance Angiography , Spinal Cord/pathologyABSTRACT
Spinal vascular malformations (AVMs) are rare but important causes of treatable myelopathies. Recent advances in interventional neuroradiolgy and neurosurgical techniques have improved the delineation and classifcation of these heterogeneous lesions. Because MR imaging usually is the first screening test for patients with myelopathy, the neuroradiologist must have a high level of knowledge of the common imaging characteristics of these lesions. This article reviews MR angiographic literature about spinal AVMs, reviews Type I-IV AVMs and cervical Type I AVMs, and describes their pathophysiology and common imaging characteristics, and elaborates on differences in cervical location from more typical positions.
Subject(s)
Arteriovenous Malformations/diagnosis , Cervical Vertebrae , Magnetic Resonance Imaging/methods , Spinal Cord/blood supply , HumansABSTRACT
Primary Ewing's sarcoma (ES) of the spine is uncommon, exhibiting a variety of appearances on plain-film radiographs and cross-sectional images. We report the unusual CT imaging manifestations of a primary ES with a coarse trabecular pattern that mimicked an aggressive hemangioma of the cervical spine.
Subject(s)
Cervical Vertebrae/pathology , Hemangioma/diagnosis , Magnetic Resonance Imaging , Sarcoma, Ewing/diagnosis , Spinal Neoplasms/diagnosis , Tomography, X-Ray Computed , Angiography , Cervical Vertebrae/surgery , Child , Diagnosis, Differential , Hemangioma/pathology , Hemangioma/surgery , Humans , Male , Sarcoma, Ewing/pathology , Sarcoma, Ewing/surgery , Sensitivity and Specificity , Spinal Cord Compression/diagnosis , Spinal Cord Compression/pathology , Spinal Cord Compression/surgery , Spinal Neoplasms/pathology , Spinal Neoplasms/surgeryABSTRACT
Laparoscopic operations are becoming more common and replacing more traditional surgical procedures. As a result, radiologists should be aware of some of the unique complications that may occur from these types of procedures. We report two cases of incarcerated bowel hernias in lateral trocar sites.
Subject(s)
Intestinal Diseases/etiology , Laparoscopy/adverse effects , Female , Hernia/diagnostic imaging , Hernia/etiology , Humans , Hysterectomy, Vaginal/adverse effects , Intestinal Diseases/diagnostic imaging , Pregnancy , Pregnancy, Ectopic/surgery , Tomography, X-Ray ComputedABSTRACT
We report a case of pigmented villonodular synovitis involving the temporomandibular joint that presented as a rapidly growing tumor with extension through the skull base into the middle cranial fossa. The case is of interest not only because of the unusual extensive infiltration of this tumor but also because of the role modern diagnostic imaging and endovascular therapeutic techniques played in its diagnosis and management.
