This nasal inflammatory myofibroblastic tumor is composed of a storiform array of plump spindle cells with a background of chronic inflammatory infiltrate.

Slides:

Advertisements

Similar presentations

Low SI on axial T2-weighted images as a sign of malignancy.

Advertisements

Bilateral asymmetrical rhinoscleroma.

A, CT scan showing disk herniation in the posterolateral part of the L4-L5 disk.B, Transforaminal periradicular infiltration at the L5–S1 level, demonstrating.

Ossification in nonfungal sinusitis.

Patient 5. Patient 5. Initial diagnosis: nonhealing midline granuloma (Stewart's syndrome); final diagnosis: non-Hodgkin's T-cell lymphoma. A, CT scan.

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.

A, MIP of 3 mm thickness of the 1.5T scan.

Pathologic features of interstitial nephritis associated with inflammatory bowel disease. Pathologic features of interstitial nephritis associated with.

The aortic arch branching pattern found in cattle has a single brachiocephalic trunk originating from the aortic arch and eventually splits into the bilateral.

Coronal CT scan of the paranasal sinuses shows a moderate-sized left concha bullosa with moderate deviation of the nasal septum convexity to the right.

Case 3. Case 3. A–C, Axial contrast-enhanced CT scans show an enhancing soft-tissue mass (arrows, A) lying against the enlarged and enhancing right submandibular.

Contrast-enhanced CT scans show increased enhancement at the right cavernous sinus.A, Contrast-enhanced CT scan obtained in 1994 shows that the right tentorium.

A 53-year-old male patient with temporal lobe epilepsy (case 31).

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.

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.

Histopathology of the dural mass

Pathology slide of the meningeal tissue from a left temporal craniotomy shows inflammatory cells with lymphoplasmacytic infiltration, foamy histiocytes,

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.

Calcification in aspergillosis.

Postmyelography CTs showing (A) bilateral cervicothoracic CSF leaks without an associated meningeal diverticulum; B, Left thoracic meningeal diverticulum.

Series of axial CT scans

An oligodendroglioma in the right frontoinsular region.

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

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.

Fig 1. Unenhanced axial T1-weighted MR image (728/15/2 [TR/TE/excitations]; matrix, 256 × 512; section thickness, 4 mm) shows an abnormally thickened second.

Ill-defined margins as a sign of malignancy.

A 19-year-old woman with aneurysmal bone cyst.

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.

Representative multislice MIP projections of EPVS in the subcortical brain structures and the basal ganglia of a control and a subject with aMCI. Representative.

Graph of neurologic scores (mean ± SD) for the moderate-severe VSPdelayed group, mild VSPdelayed group, and sham group. Graph of neurologic scores (mean.

CT scan of the neck shows multiple cervical lymph nodes with ring enhancement, central necrosis, and an abscess with diffuse strong edematous infiltration.

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.

Histopathologic examination of a specimen obtained from left lentiform nucleus by stereotactic biopsy. Histopathologic examination of a specimen obtained.

Axial contrast-enhanced CT scan shows bilateral facial soft-tissue tumor infiltration, bilateral enlarged middle cranial fossae (arrowheads), bilateral.

CT images of a patient with inverted papilloma

Histopathologic specimens of a well-differentiated and malignant astroblastoma.A, Well-differentiated astroblastomas are composed of astroblastic pseudorosettes,

Linear regression analysis to test for correlation of the OsR and NR with FD parameters, MCR (%) (A and C) and pore density (1/mm2) (B and D). Linear regression.

A schematic diagram demonstrating the measurement of the degree of circumferential contact between ICA and the tumor. A schematic diagram demonstrating.

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.

Tumor histopathology.A, The solid and cellular neoplasm is composed of rounded-to-spindled cells growing in a storiform pattern. Tumor histopathology.A,

Images of a 52-year-old man who developed acute left hemiparesis, ataxia, and agitation (case 1). Images of a 52-year-old man who developed acute left.

Typical histopathologic features of CAPNON

Neurothekeoma of tongue in a 15-year-old girl.

Automatic exposure control in the head of a pediatric patient.

Scatter and box plot of midpoint measurement compared with age of subject. Scatter and box plot of midpoint measurement compared with age of subject. The.

Photomicrographs show metastatic lymph nodes from poorly (A) and highly (B) differentiated squamous cell carcinomas.A, Poorly differentiated cancer cells.

37-year-old woman with right upper lid lesion of 1 year's duration, located mainly in its medial aspect. 37-year-old woman with right upper lid lesion.

Bar graph illustrating the rate of leak detection by CTM and MRM

Number of white streaks for the cobalt-containing alloy (upper, black lines) and titanium clips (lower, white lines) scanned in high mode (H) (open symbols,

A 69-year-old man with small-cell carcinoma from the lung

A, T2-weighted coronal image shows a soft-tissue mass of intermediate signal intensity in the left posterior nasal cavity.B, Postcontrast T1-weighted axial.

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–C, Axial T2-weighted images 7 days after the ictus, demonstrating punctate hyperintensities throughout the white matter, on a background of slightly.

A, Recurrent neoplasm in patient 6.

An 11-year-old girl with positive genetic testing and other connective tissue manifestations demonstrates spine instability at both C1 and C2 (note atlantoaxial.

Abnormal pedicle marrow signal in a malignant VCF

Orbital infiltration. Orbital infiltration. A, Soft tissue is seen in the posterior left orbit in this patient with metastatic disease to the bone. The.

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:

This nasal inflammatory myofibroblastic tumor is composed of a storiform array of plump spindle cells with a background of chronic inflammatory infiltrate (hematoxylin-eosin, original magnification × 200). This nasal inflammatory myofibroblastic tumor is composed of a storiform array of plump spindle cells with a background of chronic inflammatory infiltrate (hematoxylin-eosin, original magnification × 200). V. Lai et al. AJNR Am J Neuroradiol 2007;28:135-137 ©2007 by American Society of Neuroradiology