Spotters 4
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LARGE SEGMENT, INCLUDING END OF BONE
TRIANGULAR OR "FLAME-SHAPED" OR "BLADE OF GRASS" TERMINATION
CORTEX THICK BUT VERY POROUS
PAGET DISEASE
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SYNOVITIS
NODULES
DARK SIGNAL (HEMOSIDERIN)
BONE INVASION
PIGMENTED VILLONODULAR SYNOVITIS (PVNS) : A benign proliferative disorder of uncertain etiology that affects synovial joints, bursae, and tendon sheaths. Patients aged 20-50 years. Monoarticular Knee (about 80% of patients)
NODULES
DARK SIGNAL (HEMOSIDERIN)
BONE INVASION
PIGMENTED VILLONODULAR SYNOVITIS (PVNS) : A benign proliferative disorder of uncertain etiology that affects synovial joints, bursae, and tendon sheaths. Patients aged 20-50 years. Monoarticular Knee (about 80% of patients)
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EWINGS SARCOMA
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HIE
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PANCAKE KIDNEY
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HYPERDENSE BASILAR ARTERY THROMBUS
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CAROLI DISEASE WTH INTRADUCTAL CALCULI
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SPLENIC ARTERY PSEUDOANEURYSM
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D/D: ABC/GCT before fusion epiphysis
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SCHWANNOMA
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UB DIVERT WITH CALCULUS
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J J INTUSSUCEPTION
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Lipoma of the corpus callosum. Extremely low-density mass (open arrows) involving much of the corpus callosum. Note the peripheral calcifications (closed arrows).
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Gout-large calcified tophi in olecranon bursa.
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GB ADENOMYOMATOSIS
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B12 Deficiency- Cord & Brain Involvement
There is associated white matter involvement along with posterior column involvement which is relatively less commonly reported in B12 deficiency. This is 51 year old male who is non alcoholic, with possibly dietary deficiency.
There is associated white matter involvement along with posterior column involvement which is relatively less commonly reported in B12 deficiency. This is 51 year old male who is non alcoholic, with possibly dietary deficiency.
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Sarcoidosis. (A) Coronal postcontrast T1-weighted image shows abnormal pial enhancement. There is also abnormal enhancement along the perivascular spaces for the lenticulostriate arteries and in the pituitary stalk. (B) Midsagittal postcontrast T1-weighted image (different patient) shows sarcoid deposits (s) in the posterior interhemispheric fissure and in the sella. (C) Axial postcontrast T1-weighted image of a different patient shows dural and masslike (s) sarcoid deposits simulating meningiomas (avascular at angiography).
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Oligodendroglioma. (A) Nonenhanced scan showing a hypodense mass containing amorphous areas of calcification. (B) After the intravenous injection of contrast material, there is marked contrast enhancement
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Teratoma. Axial T2-weighted MR image shows a pineal mass that is markedly hypointense because of high fat content and extensive calcification
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Cholangiogram & MRCP CDC II
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The ribs are widened and display coarse trabeculation consistent with extramedullary hematopoesis (red arrow). Hyperemia of the pulmonary circulation is present
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1.Sarcoidosis:Great mimicker leptomeningeal,dural & parenchymal lesions. Isointense on T1W images, hypointense on T2W image
2.Leptomeningeal lesions enhance
2.Leptomeningeal lesions enhance
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Posterior shoulder dislocation: Axial CT image of the shoulder
shows the humeral head locked behind the posterior glenoid rim,
and adjacent deformity of the anteromedial humeral head indicating
a Reverse Hill-Sachs impaction fracture (Trough sign).
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SOFT TISSUE EXTENSION THROUGH
INTACT CORTEX (PERMEATION)
DENSITY ? CORTEX
CLOUD-LIKE AND LINEAR
MINERALIZATION MULTIFOCAL
PROSTATE METASTASES Most skeletal metastases do NOT produce a soft tissue mass
INTACT CORTEX (PERMEATION)
DENSITY ? CORTEX
CLOUD-LIKE AND LINEAR
MINERALIZATION MULTIFOCAL
PROSTATE METASTASES Most skeletal metastases do NOT produce a soft tissue mass
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LCH :Thickened stalk ..T2 hyperintense..Intense enhancement
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Parotid sialogram showing globular sialectasis.
Collections of contrast medium 1-2 mm in diameter are evenly
distributed throughout the gland (one has been identified with an
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Sub-ungual Exostosis
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Facial nerve Schwannomas
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Hemangioma
Retained internal trabeculae
Low attenuation
Mildly expansile
Multifocal
Retained internal trabeculae
Low attenuation
Mildly expansile
Multifocal
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Candida oesophagitis. (A) Mucosal plaques. (B) Extensive mucosal nodularity
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Gastric volvulus: supine. Gas-filled, grossly dilated stomach, spherical in outline. Note also the linear gas within the wall of the stomach and visualization of both sides of the stomach wall indicating free gas. At laparotomy a perforated gangrenous stomach had undergone volvulus around its transverse axis.
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LISSENCEPHALY
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RE SYNAPSIS
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TS
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KIENBOCK
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Findings: The left hippocamal formation is smaller than the right side (primarily the body, but also the head and tail somewhat). There is also increased T2 signal intensity of the left hippocampus compared to the right. Incidental note made of changes compatible with small vessel ischemic disease.
Mesial temporal sclerosis (this case is pathognomonic with these findings).
Mesial temporal sclerosis (this case is pathognomonic with these findings).
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LT ILIAC ARTERY ANEURYSM
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Angiomyolipoma with both well-defined focal and diffuse infiltrating characteristics in a 17-year-old girl with tuberous sclerosis
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CT image shows randomly arranged cysts in both lungs IN TS
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SPINAL HEMANGIOBLASTOMA
