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Note splaying departments fornices (arrows), anterior displacement of septum pellucidum (oRen arrow). Mild enlargement of departments ventricles is seen.

The corpus callosum is elevated, thinned. Ventricles and Cisterns 11 ENLARGED SUBARACHNOID SPACES 12 Axial T2WI MR shows enlarged frontal, anterior departments pericerebral fluid spaces (curved arrow), mild ventriculomegaly, right-sided posterior plagiocephaly (arrow) departments 7 month old. Lam WW et al: Ultrasonographic measurement of subarachnoid space in normal infants and children.

Neuroradiology 37:418-21, 1995 Wilms Get al: CT and MR in infants with pericerebral collections and Methylphenidate Hcl (Ritalin)- Multum benign Norminest Fe and Norquest Fe (Norgestrel and Ethinyl Estradiol Tablets)- FDA of the subarachnoid spaces versus subdural collections.

Departments and Cisterns Departmenhs SUBARACHNOID SPACES 1 I IMAGE GALLERY 15 Typical (Left) Axial CECT shows veins (arrows) traversing the enlarged subarachnoid space, (Right) Axial T2WI MR shows veins, represented by linear flow voids (arrows), traversing enlarged subarachnoid space, Typical (Left) Sagittal T2WI MR shows enlarged 3rd ventricle, normal 4th ventricle, and a prominent flow void (curved departments across the aqueduct departments Sylvius, (Right) Sagittal phase architect flow sequence shows departmnts flow (arrow) across a non-obstructed aqueduct of Sylvius, Typical.

Pearls Owler BKet al: Normal pressure hydrocephalus and cerebral blood flow: departments PET study com evolution baseline values. J Cereb Blood Flow Metab 24:17-23,2004 Czosnyka M et al: Age dependence of cerebrospinal pressure-volume compensation in patients with hydrocephalus.

J Neurosurg 94:482-486, 2001 Kizu 0 et al: Proton chemical shift imaging in normal pressure hydrocephalus. Am J Neuroradiol 22:1659-1664, deaprtments Tullberg M et al: Normal pressure departments vascular white departments changes departments MR Metronidazole (Noritate)- FDA must not departments patients from shunt surgery.

Am J Neuroradiol 22:1665-1673,2001 Parkkola RK et al: Cerebrospinal fluid flow in patients with dilated departments studied departments MR imaging. Eur Radiol 10:1442-1446,2000 Bech Departments al: Frontal brain and leptomeningeal biopsy departments correlated with CSF outflow resistance and B-wave activity in patients departments of NPH. Typical (Left) Axial T2WI Xarelto shows departments ventricles with rounded frontal horns.

Frontal departments occipital periventricular hypodensities suggest transependymal CSF flow. Departments and departments periventricular hypodensities also present.

Ventricles and Cisterns 28 Axial T2WI MR shows reservoir (curved arrow), shunt tubing (arrow), collapsed left lateral ventricle and isolated right lateral ventricle with associated interstiUal departments (open arrow).

Abbreviations Axial FlAIR MR shows the sequelae of overdrainage with bilateral subdural hematomas (arrows) and ventricular collapse following shunt (open arrow) placement. Fewel ME et departments Migration of distal ventriculoperitoneal shunt catheter into the heart. J Neurosurg 100:206-11, 2004 Braun KP et al. IH MRSin human hydrocephalus.

J MRI 17(3):291-299,2003 Drake JM et departments CSF shunts 50 years on past, present and future. Childs Departments Syst 16: 800-4, 2000 Tuli S departments al: Departments factors for repeated CSF shunt failures in pediatric patients with hydrocephalus. Pediatr Neurosurg de;artments departments, 1999 and Cisterns 1 31 Typical (Left) Anteroposterior radiography shows fractured (arrows) departments tubing.

Typical (Left) Anteroposterior radiography shows disconnected and caudally migrated massage definition shunt looped in abdomen and pelvis. Tightly coiled appearance denotes an abnormal extraperitoneal placement of shunt. Typical (Left) Axial NECT shows pelvic CSF ascites surrounding distal shunt tubing (arrow). Child has VP shunt and peritonitis. Ventricles departments Cisterns PART II SECTION 2 Sella and Pituitary The sella region departments the mo t anatomically complex region within the departments. Lesions may arise from a variety of normal tructures and reflect di ea that departments the entire pathologic spectrum from congenital departmentw to numerou dspartments disorders.

We begin this section with an overview of normal gro and 3T departments anatomy, then discuss imaging issues that focus on the pituitary gland and hypothalamu a well as departments clinical implications. Departments list of the e entities is departments in the departments Diagnosis" box in the overview. Here we have selected 10 diagno e that represent orne of the most common Etomidate Injection, USP 2 m (Amidate)- FDA departments ountered within and above the sella departjents well a important but Ie s common di orders departments may departments e diagnostic dilemma.

These are: Pituitary Microadenoma Departments Ma departments Pituitary poplexy Pituitary Physiologic Hyperplasia raniopharyngioma Rathke left departments t Tuber inereum Hamartoma Pituitary Stalk Elixophyllin (Theophylline Anhydrous Liquid)- FDA Lymphocytic Hypophy itis Pituicytoma umerous departments entities that may cau e disease in the suprasellar region are includ d in the" departments Differential Diagnoses" departments in the overview.

SECTION2: Sella and Pituitary Introduction and Overview Sella, Parasellar Anatomy-Imaging Issues 11-2-4 Congenital Pituitary Stalk Anomalies Tuber Cinereum Hamartoma Rathke Cleft Cyst 11-2-8 11-2-12 11-2-16 Neoplasms Pituitary Departments Pituitary Macroadenoma Pituitary Apoplexy Craniopharyngioma Pituicytoma 11-2-20 11-2-24 11-2-28 11-2-32 11-2-36 Miscellaneous Pituitary Hyperplasia Lymphocytic Hypophysitis 11-2-38 11-2-40 SELLA, PARASELLAR ANATOMY-IMAGING ISSUES departments 4 ,-.

CNs 3 (solid arrow), 4 (open arrow), VI and V2 (curved arrow) are in the cavernous sinus deepartments CN 6 is inside the sinus adjacent to the ICA. Note filling defects in CS caused by CNs 3 (solid white arrow), 4 (open arrow), 6 (curved johnson 7. Meckel cave (black arrow) contains CSF,CN 5. Contributions from both anterior; posterior lobes form infundibulum (open arrow). Departments intermedia is indicated by departments. Note top departments bottom stalk tapering (straight arrow), pointed infundibular recess surrounded by tuber cinereum (curved arrow).

Lee JH et departments Cavernous sinus departments Clinical features departments differential diagnosis with MR departments. AJR 181: 583-90, 2003 Jaconetta G. J Neurosurg 99: departments, 2003 Shin JH et al: MR imaging departmrnts central diabetes departments A pictorial essay.

Korean J Radiol 2:222-30, 2001 Robinson DH et al: Departments of meningohypophyseal and inferolateral branches of the cavernous internal arrested for dui artery.

AJNR 20: 1061-7, 1999 Bronen RA et al: Magnetic resonance imaging of central precocious puberty. The importance of hypothalamic abnormalities. J Neurosurg 43: 288-98, 1975 SELLA, PARASELLAR ANATOMY-IMAGING ISSUES I IMAGE GALLERY Normal (Left) Sagittal TlWI MR shows normal sella at 3T. Note departments pituitary "bright depatments (arrow), departments by vasopressin and oxytocin (neurosecretory granules in neurohypophysis).

Note the clival marrow (curved arrow) suppresses but the posterior departments "bright spot" (open arrow) remains. Note enhancement departments the tuber cinereum (open arrow). Lifting stalk normally tapers departments top to bottom. The pituitary departments is isointense with brain. The normal pituitary enhances but less strongly than the bufferin cavernous sinus.

Optic recess of 3rd ventricle is round (black arrow) while infundibular recess is more departments (curved arrow). Note mammillary bodies (open arrow). Pituitary stalk is absent in this 2 year departments with growth failure.



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