Photomicrograph of the tumor shows the chordoid meningioma with eosinophilic vacuolated tumor cells (large arrow) in a mucous-rich matrix (small arrow)

Slides:



Advertisements
Similar presentations
Lateral skull radiograph performed in our patient at age 4 years shows cystoperitoneal shunt connected to a VP shunt via a Y connector (dashed arrow, reservoir.
Advertisements

Precontrast coronal T1-weighted view shows metastatic nodules (long arrows) from breast cancer in the vicinity of the left BPL and another metastatic mass.
Bilateral asymmetrical rhinoscleroma.
Ossification in nonfungal sinusitis.
Patient 1. Patient 1. Axial T2 FLAIR (A) MR image demonstrates abnormal T2 FLAIR signal in the right lateral pons extending into the right trigeminal nerve.
Patient 4. Patient 4. A 39-year-old woman had a solid nonfunctioning pituitary adenoma without cyst or hematoma. She had no past or present headache. A,
Histology samples stained with Masson trichrome.
Intraosseous temporal bone meningioma in a 45-year-old woman who presented with left-sided hearing loss and tinnitus. Intraosseous temporal bone meningioma.
Calcification in aspergillosis.
A, Measurement of the angle between the TS-OP line and the hard palate in the lateral scout view of the brain CT (black arrow). A, Measurement of the angle.
A, MIP of 3 mm thickness of the 1.5T scan.
Postembolization CT image, demonstrating the presence of peritumoral hemorrhage at the anterior and inferior aspect of the embolized tumor, which is depicted.
The aortic arch branching pattern found in cattle has a single brachiocephalic trunk originating from the aortic arch and eventually splits into the bilateral.
Continued. Continued. E, Light microscopic image of the left hippocampus obtained by amygdalohippocampectomy reveals extensive neuronal loss and gliosis.
A 53-year-old male patient with temporal lobe epilepsy (case 31).
Photomicrograph showing a polypoidal mass that is lined by benign squamous epithelium (short arrow) with proliferation of granulation tissue in the underlying.
A 59-year-old womam with HPV− HNSCC (T2N0M0).
Results of histopathologic examinationA, Chondroid metaplastic foci in the connective tissue surrounding the lesion (hematoxylin-eosin stain ×100).B, Lamellar.
T2-weighted images of a patient with an infarction within the anterior MCA branch territory on day 5 (patient 15) show high SI changes within the ipsilateral.
A 13-year-old girl with fibrous dysplasia affecting the sphenoid bone.
Brain biopsies from different patients showing typical sarcoid granuloma (short arrows) with a Langerhans-type giant cell (long arrow) (H&E, original magnification.
Electron microscopic view shows one tumor cell with a round regular nucleus (N), peripherally clumped chromatin (short arrows), and surrounding small amount.
AP (A) and lateral (B) radiographs demonstrating a discontinuous segment of the catheter, with broken catheter ends in the subcutaneous tissue of the lower.
A 60-year-old man with HPV+ HNSCC (T3N2M0).
Pathology slide of the meningeal tissue from a left temporal craniotomy shows inflammatory cells with lymphoplasmacytic infiltration, foamy histiocytes,
Sagittal T1-weighted (A) and coronal T2-weighted (B) MR images show the frontoparietal intracalvarial mass lesion that was hypointense on T1-(A) and hyperintense.
Hematoxylin-eosin (A) and luxol fast blue (B) staining of the lesion seen in the cerebellum of case 2. Hematoxylin-eosin (A) and luxol fast blue (B) staining.
Intraoperative tumors with a firm consistency.
Calcification in aspergillosis.
Coronal (A) and axial (B) contrast-enhanced T1-weighted MR images and an axial DWI (C) and ADC map (D) in a patient with primary dural B-cell lymphoma.
Benign peripheral nerve sheath tumor of the sciatic nerve shows the typical split fat sign (arrow) on coronal T1 (A), target sign (short arrow) on coronal.
Axial T2-weighted MR imaging at the level of the internal auditory canals, demonstrating a large, homogeneous mass filling the right internal auditory.
Ill-defined margins as a sign of malignancy.
A 19-year-old woman with aneurysmal bone cyst.
Four more examples of missed additional aneurysms on DSA
Bar graph of ADC values (s/mm2) for tumor, contralateral normal tissue, ipsilateral normal tissue, and edema for the group of 15 patients with high-grade.
Microscopic images.A, Proliferation of spindle cells oriented in intersecting fascicles or haphazardly distributed, accompanied by numerous plasma cells.
Photomicrographs show cross sections of rabbit CCAs on day 2.
Graph of neurologic scores (mean ± SD) for the moderate-severe VSPdelayed group, mild VSPdelayed group, and sham group. Graph of neurologic scores (mean.
Resected arteriovenous malformations with (A) glue admixed with birefringent cotton fibers (arrowheads, Elastic Masson Trichrome, ×200) or (B) within medial.
Case 3. Case 3. Chordoma in the nasopharynx in a 13-year-old boy misdiagnosed with nasopharyngeal angiofibroma by nasal endoscopy. In the nasopharynx and.
A, Sagittal fast spin-echo (FSE) T2-weighted image of the cervical and upper thoracic spine shows a mass of very low signal intensity (arrows) within the.
Examples of tumor classifications are as follows: circumscribed, with sharp smooth borders (A); circumscribed, with sharp borders, but not smooth due to.
Differentiation of common pediatric brain tumors by quantitative 1H-MR spectroscopy. Differentiation of common pediatric brain tumors by quantitative 1H-MR.
A, Coronal enhanced MR image of an IAC meningioma demonstrates intense enhancement of the intralabyrinthine structures (curved white arrow). A, Coronal.
Histopathologic examination of a specimen obtained from left lentiform nucleus by stereotactic biopsy. Histopathologic examination of a specimen obtained.
Bone algorithm CT images from the same case, demonstrating focal enlargement of the right tympanic segment, in the axial (left) and coronal (right) planes.
Two autopsy cases.A, Axial FLAIR (10,000/156/1) image obtained in a 63-year-old man shows grade 1 signal intensity abnormality in the anterior subependymal.
External carotid angiogram, lateral view, with midarterial (A) and capillary (B) phase, shows the rich vascularity of the tumor. External carotid angiogram,
Tumor histopathology.A, The solid and cellular neoplasm is composed of rounded-to-spindled cells growing in a storiform pattern. Tumor histopathology.A,
MR images of the brain (axial sections, fluid-attenuated reversion recovery sequences) show the symmetric hyperintensities (arrows) involving the pyramidal.
A 43-year-old male patient with headaches (case 33).
Typical histopathologic features of CAPNON
Neurothekeoma of tongue in a 15-year-old girl.
A, GFAP highlights intensely positive glial fibrils in perivascular rosettes. A, GFAP highlights intensely positive glial fibrils in perivascular rosettes.
Case 1. Case 1. A 6-year-old girl with an ill-defined lesion of the left pyriform sinus.A, Contrast-enhanced axial CT scan shows a moderately enhancing.
A 55-year-old woman presented with headache and vomiting with left lateral ventricular mass.A, Axial nonenhanced CT image of the brain at the level of.
Axial T2-weighted MR image shows normal flow void in the right internal jugular vein (arrows), whereas flow-related enhancement can be seen in the left.
Photomicrographs show metastatic lymph nodes from poorly (A) and highly (B) differentiated squamous cell carcinomas.A, Poorly differentiated cancer cells.
A 69-year-old man with small-cell carcinoma from the lung
Pseudoaneurysms demonstrated by femoral arteriography and sonography.
This nasal inflammatory myofibroblastic tumor is composed of a storiform array of plump spindle cells with a background of chronic inflammatory infiltrate.
Axial images from the brain of a 59-year-old woman with mixed features of response, including areas of treatment-related changes and TP. Contrast-enhanced.
Metastatic adenocarcinoma.
A, Recurrent neoplasm in patient 6.
Abnormal pedicle marrow signal in a malignant VCF
Photomicrograph of the midbrain shows the white matter between the red nucleus and substantia nigra, where the nerve fibers (arrow) extend in the obliquely.
A 73-year-old woman with well-differentiated SCCA of the lacrimal sac and nasolacrimal duct. A 73-year-old woman with well-differentiated SCCA of the lacrimal.
A 77-year-old woman (patient 4) with multiple myeloma initially treated with pamidronate and subsequently zoledronate.A, The initial orthopantogram demonstrates.
Photomicrograph of lobulation of the cyst wall with piling up of the squamous epithelium (asterisk), characteristic of a proliferating trichilemmal cyst.
Presentation transcript:

Photomicrograph of the tumor shows the chordoid meningioma with eosinophilic vacuolated tumor cells (large arrow) in a mucous-rich matrix (small arrow) (hematoxylin and eosin, original magnification ×200). Photomicrograph of the tumor shows the chordoid meningioma with eosinophilic vacuolated tumor cells (large arrow) in a mucous-rich matrix (small arrow) (hematoxylin and eosin, original magnification ×200). Nil Tokgoz et al. AJNR Am J Neuroradiol 2005;26:2053-2056 ©2005 by American Society of Neuroradiology