Representative sonographic images of the 4 diagnostic categories for PCTNs. A, Benign: transverse US image of a right isthmic thyroid nodule (1.1 × 1.7.

Slides:

Advertisements

Similar presentations

Ultrasonographic criteria for fine needle aspiration of nonpalpable thyroid nodules 1– 2cm in diameter Ji Yang Kim, Soo Young Kim, Ki Ra Yang European.

Advertisements

Benign Lesions That Mimic Thyroid Malignancy on Ultrasound

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

Precontrast coronal T1-weighted view shows metastatic nodules (long arrows) from breast cancer in the vicinity of the left BPL and another metastatic mass.

Corresponding midsagittal CT (left), MR (middle), and registered (right) images of the cervical spine show proper alignment and the relationship between.

The 4 categories of thyroid sonography for the classification of PCTNs

A 21-year-old man with recurrent left S1 sciatica and radiculopathy by electromyography. A 21-year-old man with recurrent left S1 sciatica and radiculopathy.

The SOVs (arrows) are located under the superior rectus muscles.

A 50-year-old man with MD. Axial thin-section CT image shows decreased distance between the vertical limb of the posterior semicircular canal and the posterior.

A 76-year-old man with a carcinoma ex pleomorphic adenoma (case 2).

Radiation neuropathy. Radiation neuropathy. A 69-year-old woman with a history of breast carcinoma and external beam radiation therapy 2 years before imaging.

Intraosseous temporal bone meningioma in a 45-year-old woman who presented with left-sided hearing loss and tinnitus. Intraosseous temporal bone meningioma.

Image shows appearance of septum within dural sinus in a 68-year-old woman with normal results of an MR imaging examination. Image shows appearance of.

Acutely ruptured PICA aneurysm in a 46-year-old woman.

Contrast-enhanced T1WI (A and C) and CBF maps derived from ASL imaging (B and D) for 2 representative cases. Contrast-enhanced T1WI (A and C) and CBF maps.

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.

Multiple acute nerve root avulsions.

A, 22-week old fetus with several nodular areas of low signal intensity along the margin of the left lateral ventricle (arrows) on axial SS-FSE T2-weighted.

Fig. 4. Korean Thyroid Imaging Reporting and Data System 3 (low suspicion). None of nodules have any suspicious US features such as microcalcification,

Continued. Continued. E, Light microscopic image of the left hippocampus obtained by amygdalohippocampectomy reveals extensive neuronal loss and gliosis.

Types I and II LTS. Axial contrast-enhanced T1-weighted MR image obtained in a 55-year-old man with a type I LTS on the left and a type II LTS on the right.

Intramuscular course and entrapment of the C5 nerve root.

Coronal (A, B) and sagittal (D) sections of MIP reformations of a MDCTA performed on a 4-row-detector system in a 54-year old woman (patient 10) with an.

Venous diverticulum in a 69-year-old man with long-standing right-sided pulsatile tinnitus. Venous diverticulum in a 69-year-old man with long-standing.

A 48-year-old man with a cerebral metastasis from a hepatocellular carcinoma. A 48-year-old man with a cerebral metastasis from a hepatocellular carcinoma.

16-year-old boy with a purely cystic thyroid nodule (group A)

A, Coronal CT scan of the paranasal sinuses in a 45-year-old women with difficulty breathing shows the typical appearance of crista galli pneumatization.

Intracranial hypertension in a 30-year-old woman presenting with headaches and tinnitus. Intracranial hypertension in a 30-year-old woman presenting with.

Patient 9. Patient 9. A 31-year-old man with mental status changes and seizure activity.A, T2-weighted axial MR image shows bilateral frontal and right.

Images obtained in a 57-year-old-man with small-cell lung cancer reveal multiple, enhancing, solid and cystic parenchymal metastases. Images obtained in.

Normal apical ligament (arrow) and normal anterior atlantoaxial ligament (arrowhead) in the diagram (A) and the midsagittal T2-weighted MR image (B) in.

A and B, Axial and coronal high-resolution CT images of the larynx in a 73-year-old patient with papillary thyroid cancer and left vocal cord paralysis.

Fig. 3. Korean Thyroid Imaging Reporting and Data System 4 (intermediate suspicion). A. Solid hypoechoic nodule without suspicious US features. Diagnosis:

Undifferentiated carcinoma with perineural spread in a 43-year-old male patient. Undifferentiated carcinoma with perineural spread in a 43-year-old male.

46-year-old woman with a cystic thyroid nodule (group B)

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.

3D TOF MR angiograms.A, Angiogram of the circle of Willis with the complete anterior configuration shows the AcoA (arrow).B, Angiogram of the circle of.

Coronal T1-weighted postcontrast MR image in a 71-year-old man, 11 years after radiation therapy, with a contrast enhancing polyp (arrow) with less enhancing.

Category of no evidence of DTD in a 28-year-old woman.

Diagnostic performance of 2015 American Thyroid Association guidelines and inter- observer variability in assigning risk category Zhiyu Pang, Myles Margolis,

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.

Cystic changes within the endplates adjacent to the implants.

Images from the case of a 4-year-old child with a cystic hygroma.

A, A 44-year-old woman with CP

Three patients with incidental thyroid nodules that were similar in size but were reported differently. Three patients with incidental thyroid nodules.

High-resolution MR imaging, CTA, and sonography of the left carotid artery of a 77-year-old man. High-resolution MR imaging, CTA, and sonography of the.

T2-weighted MR imaging appearance of a healthy 60-year-old woman (A), a 66-year-old woman with idiopathic Parkinson disease (B), and a 16-year-old female.

A 55-year-old woman presenting with left hemiparesis and normal findings on head CT. A, CTP source image shows poor contrast opacification within the right.

Coronal postcontrast T1-weighted image of the orbits in patient 1 demonstrates a heterogeneously enhancing ovoid lesion involving the right medial rectus.

A 47-year-old woman with a history of alcohol abuse presented with ataxia, changes in consciousness, and ocular abnormalities. A 47-year-old woman with.

Bone algorithm CT images from the same case, demonstrating focal enlargement of the right tympanic segment, in the axial (left) and coronal (right) planes.

A 67-year-old man with intraorbital, infraorbital nerve, and frontal nerve lesions. A 67-year-old man with intraorbital, infraorbital nerve, and frontal.

Axial images of a 45-year-old woman (A and C) from the STD group (DLP, 1100 mGy×cm) and a 37-year-old man (B and D) from the LD group (DLP, 713 mGy×cm)

Comparison between angle-corrected and uncorrected flow velocities and angiographic findings in a 54-year-old woman with MCA stenosis. Comparison between.

Case 7, 75-year-old man with history of squamous cell carcinoma of the larynx status postradiation found to have an enlarging mass in the left parotid.

The classic CT and MR imaging appearance of an astroblastoma in a 5-year-old female patient (patient 4).A, Axial non-contrast-enhanced CT scan shows the.

Magnified view of the axial images of the cervical spine at a comparable level (CT scan, left; MR image, center; registered image, right). Magnified view.

A 43-year-old male patient with headaches (case 33).

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.

Two different cases of medulloblastoma with extensive nodularity are illustrated. Two different cases of medulloblastoma with extensive nodularity are.

A 59-year-old woman with bilateral descending thoracic vertebral arteries. A 59-year-old woman with bilateral descending thoracic vertebral arteries. A,

A 75-year-old woman with compression fractures at T12 and L1, which were treated with vertebroplasty. A 75-year-old woman with compression fractures at.

A left centrum semiovale lesion in a 30-year-old woman with relapsing-remitting MS; the time lapse between 3T and 7T scans was 6 months. A left centrum.

Coronal early phase postcontrast (A), axial early phase postcontrast (B), and axial delayed phase postcontrast (C) images showing an early enhancing 1.3-cm.

A 75-year-old man with a left brachial zoster-associated plexopathy.

A 48-year-old woman with a carcinoma ex pleomorphic adenoma (case 1).

Tumor with surrounding FCD in an 18-year-old woman.

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.

Imaging of a 65-year-old man who presented with intractable epistaxis and whose history included right nephrectomy for renal cell carcinoma 5 years earlier.

Presentation transcript:

Representative sonographic images of the 4 diagnostic categories for PCTNs. A, Benign: transverse US image of a right isthmic thyroid nodule (1.1 × 1.7 × 1.8 cm) showing an ovoid shape, isoechogenic and smooth-margined solid component, and a centrally and e... Representative sonographic images of the 4 diagnostic categories for PCTNs. A, Benign: transverse US image of a right isthmic thyroid nodule (1.1 × 1.7 × 1.8 cm) showing an ovoid shape, isoechogenic and smooth-margined solid component, and a centrally and eccentrically located cystic component in a 30-year-old woman. The nodule was surgically resected because of coexisting thyroid malignancy (nodular hyperplasia by pathology). B, Probably benign: transverse US image of a right thyroid nodule (1.9 × 2.4 × 2.5 cm) showing an eccentric configuration with a blunt angle between the solid and cystic components (arrows) and an isoechoic solid component with a smooth margin in a 36-year-old woman. The nodule was surgically resected because of coexisting thyroid malignancy (nodular hyperplasia by pathology). C, Possibly malignant: transverse US image of a right thyroid nodule (1.9 × 2.1 × 2.2 cm) showing an eccentric configuration with an acute angle between the solid and cystic components (arrows) and an isoechoic solid component with a microlobulated margin in a 41-year-old man (nodular hyperplasia by pathology). D, Malignant: longitudinal US image of a left thyroid nodule (0.9 × 1.0 × 1.1 cm) showing an eccentric configuration with an acute angle between the solid and cystic components (arrows) and some microcalcifications in the solid component in a 36-year-old woman (classic type of papillary thyroid carcinoma by pathology). D.W. Kim et al. AJNR Am J Neuroradiol 2012;33:1144-1149 ©2012 by American Society of Neuroradiology