ABSTRACT
OBJECTIVE: The aim of this article is to review the embryology of the choroid plexus and the spectrum of disorders involving the choroid plexus in children and to illustrate their radiologic features. CONCLUSION: The choroid plexus is an important part of the CNS that can be the primary or secondary location for many congenital abnormalities or pathologic conditions such as neoplasms, infections, inflammatory processes, cysts, and vascular malformations.
Subject(s)
Brain Diseases/diagnostic imaging , Brain Diseases/pathology , Choroid Plexus/diagnostic imaging , Choroid Plexus/pathology , Magnetic Resonance Imaging/methods , Tomography, X-Ray Computed/methods , Brain Diseases/embryology , Child , Child, Preschool , Choroid Plexus/embryology , Female , Humans , Infant , Infant, Newborn , MaleABSTRACT
Intracerebral paragangliomas are rare because of the lack of paraganglial cells in the cerebral tissue. We report a rare case of melanotic paraganglioma arising from the temporal horn of the lateral ventricle in a patient with prior Langerhans cell histiocytosis (LCH) treated with chemotherapy and radiation.
Subject(s)
Brain Neoplasms/diagnosis , Histiocytosis, Langerhans-Cell/complications , Melanins/metabolism , Paraganglioma/diagnosis , Adult , Brain Neoplasms/metabolism , Brain Neoplasms/surgery , Contrast Media/administration & dosage , Diagnosis, Differential , Female , Headache/etiology , Histiocytosis, Langerhans-Cell/pathology , Histiocytosis, Langerhans-Cell/therapy , Humans , Image Enhancement/methods , Magnetic Resonance Imaging , Paraganglioma/metabolism , Paraganglioma/surgery , Rare Diseases , Temporal Lobe/diagnostic imaging , Temporal Lobe/pathology , Temporal Lobe/surgery , Tomography, X-Ray ComputedABSTRACT
We present a case of infantile myofibromatosis manifest as a choroid plexus mass followed by spontaneous regression. Infantile myofibromatosis is a common juvenile fibrous disorder occurring in infancy and early childhood. Intracranial involvement in infantile myofibromatosis is rare. It generally occurs in the dura with calvarial invasion and secondary brain compression.
Subject(s)
Choroid Plexus/pathology , Myofibromatosis/diagnosis , Biopsy , Diagnosis, Differential , Female , Humans , Infant, Newborn , Magnetic Resonance Imaging , Remission, Spontaneous , Tomography, X-Ray ComputedABSTRACT
Haemangioblastomas occur sporadically or in association with Von Hippel-Lindau (VHL) disease. Occasionally, they are associated with intrathecal cauda equina nerve roots and rarely with spinal nerve roots. The occurrence of a completely extrathecal, thoracic spinal nerve haemangioblastoma is exceptional, with only one case previously described in the English-language literature. We report an extradural thoracic spinal nerve haemangioblastoma in a patient with VHL disease causing a progressive thoracic radiculopathy. The advantages of three-dimensional digital angiography will be discussed. Three-dimensional reconstruction of the images acquired by rotational digital subtraction angiography is one of the most promising developments to improve surgical planning for complex vascular lesions.
Subject(s)
Hemangioblastoma/diagnostic imaging , Hemangioblastoma/pathology , Radiculopathy/etiology , Spinal Neoplasms/diagnostic imaging , Spinal Neoplasms/pathology , Spinal Nerves/pathology , Adult , Angiography, Digital Subtraction/methods , Arteries/pathology , Arteries/physiopathology , Female , Hemangioblastoma/physiopathology , Humans , Image Processing, Computer-Assisted/methods , Laminectomy , Neurosurgical Procedures , Radiculopathy/physiopathology , Spinal Canal/pathology , Spinal Neoplasms/physiopathology , Spinal Nerves/blood supply , Thoracic Vertebrae , Treatment OutcomeABSTRACT
We evaluated the feasibility of angiographic CT (ACT) for visualizing metallic stents in three patients who underwent intracranial (n = 2) or extracranial (n = 1) stent placement to treat atherosclerotic lesions. ACT is a new technique that provides cross-sectional CT-like images based on rotational radiography performed with a rotating C-arm-mounted flat-panel detector. ACT allowed for the clear visualization of stents in both intracranial and extracranial arteries and was superior to conventional digital subtraction angiography and digital radiography in visualizing both the stent struts and their relationships to the arterial walls and aneurysmal lumen.
