By Eugene C. Lin, Edward Escott, Kavita Garg, Andrew G Bleicher, David Alan Alexander
Practical Differential prognosis in CT and MRI is a one-stop source for the differential prognosis of universal and infrequent radiologic findings and prerequisites in all areas of the physique. for every discovering and analysis, the booklet offers a whole record of differential diagnoses in addition to the positive aspects that would support the clinician differentiate ailments with related findings.
- Concise descriptions reduction the id of key radiologic symptoms
- Easy-to-use tables and bullet-point lists facilitate swift overview of significant information regarding findings, differentiating positive aspects, and affliction entities
This pocket-sized publication is perfect for citizens getting ready for board examinations in addition to for radiologists in practice.
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Additional resources for Practical Differential Diagnosis for CT and MRI
They are usually intrasellar and rarely calcified. They arise in the pars intermedia, and therefore the stalk is displaced anteriorly. They may contain serous or mucoid material and there may be mild enhancement of the wall. Their imaging appearance (computed tomography [CT] and MR) depends on the composition of the cyst contents. Fluid characteristics are • Serous CT: hypoattenuating; MR: hypointense T1W, hyperintense T2W • Mucoid/proteinaceous CT: high attenuation; MR: hyperintense on T1W, hypointense on T2W They may also contain concretions, which appear as low signal, small intracystic nodules on T2WI and may be hyperintense on T1WI.
4 to 1% of intracranial tumors. However, in children, pineal region tumors represent 3 to 8% of intracranial tumors. Assuming that the lesion can be localized to the pineal gland, the differential diagnosis includes pineal cysts, tumors of pineal cell origin, germ cell tumors, and rarely metastases and astrocytomas arising from pineal stromal cells. Germ cell tumors are the most common; they are predominately germinomas followed by teratomas. Germinomas account for ϳ40% of pineal region tumors.
Rarely, lipomas may be located off midline in the cortical sulci, where they may be associated with cortical dysplasias or abnormal vasculature. Although not formally evaluated in the literature, tiny lipomas along the falx are not uncommonly seen and are considered incidental findings. Dermoid cysts are associated with skeletal dysraphisms and fibrous bands or dermal sinus tracts to the skin. Differential Diagnosis Not many lesions are similar in appearance and location to these lesions. qxd 5/7/08 2:03 PM Page 35 11 Dermoid Cysts and Lipomas Additional Readings 1.