Intraventricular mass lesions at magnetic resonance imaging: iconographic essay - part 2*
نویسندگان
چکیده
The present essay is illustrated with magnetic resonance images obtained at the authors' institution over the past 15 years and discusses the main imaging findings of intraventricular tumor-like lesions (colloid cyst, oligodendroglioma, astroblastoma, lipoma, cavernoma) and of inflammatory/infectious lesions (neurocysticercosis and an atypical presentation of neurohistoplasmosis). Such lesions represent a subgroup of intracranial lesions with unique characteristics and some imaging patterns that may facilitate the differential diagnosis.
منابع مشابه
Intraventricular mass lesions at magnetic resonance imaging: iconographic essay - part 1*
The present essay is illustrated with magnetic resonance images obtained at the authors' institution over the past 15 years and discusses the main imaging findings of intraventricular tumor-like lesions (ependymoma, pilocytic astrocytoma, central neurocytoma, ganglioglioma, choroid plexus papilloma, primitive neuroectodermal tumors, meningioma, epidermoid tumor). Such lesions represent a subgro...
متن کاملUncommon hepatic tumors: iconographic essay – Part 2
In cases where typical aspects are shown, the diagnosis of most frequent hepatic lesions can be made with some safety by means of several imaging methods; on the other hand, uncommon lesions generally represent a diagnostic challenge for the radiologist. In the present second part of the study, the authors describe four rare hepatic lesions, as follows: primary hepatic lymphoma, myofibroblastic...
متن کاملUncommon hepatic tumors: iconographic essay - Part 1*
Most malignant liver tumors are represented by hepatocellular carcinoma and cholangiocarcinoma; however a variety of other uncommon hepatic lesions might also be found. Common lesions such as hemangioma, focal nodular hyperplasia and metastases are well known and have already been extensively documented in the literature. The diagnosis of typical hepatic lesions may be done with some reliabilit...
متن کاملMagnetic resonance imaging evaluation of perianal fistulas: iconographic essay* Avaliação por ressonância magnética das fístulas perianais: ensaio iconográfico
Previous preparation was not required for the study that was performed with an abdominal surface coil, in a Magnetom Avanto 1.5 T equipment (Siemens Medical System; Erlangen, Germany) with, respectively, T2-weighted sequences in the sagittal plane (FOV: 180 mm; thickness: 3.0 mm; GAP: 10%; matrix: 320 × 70; NEX: 3; TA: 2:34 min; TR: 2970; TE: 114), axial plane (FOV: 180 mm; thickness: 3.0 mm; G...
متن کاملFat-containing lesions of the liver: a pictorial essay.
The presence of fat within a hepatic lesion is unusual and can help to direct the radiologist's diagnosis. The aim of this iconographic review is to specify the various hepatic lesions that may contain fat and their appearance particularly on MRI. A histological correlation is also suggested for the most commonly found tumors. The identification of fat within a hepatic tumor, along with other r...
متن کامل