Parto Teb Azma

Patient ID: 88012592 87125220
HX: Headache . female 9y
DX: Venous angioma (developmental venous anomally = DVA)
Findings:
Linear signal void structure just below the left middle cerebellar peduncle extending between the left CPA cistern and the 4th ventricle width shows enhancement on post-Gd images and show multiple branches.
Discussion:
These are usually located in periventricular region or at subcortical area. One important aspect is the venous angioma is a compensatory drainage route for normal brain and sacrifice of this pathway can produce venous infarction of brain tissue being drained, so these are not surgical lesion unless misdiagnosis

Patient ID: 8801765
HX: Pain and paresthesia of the right hand .male 38y
DX: Neurofibroma
Findings:
Intradural and extramedullary mass at right side of spinal canal at C2-C3 level with extension into the right neural foramina with smooth pressure erosion upon the right side of adjacent vertebral body and widening of the right neural foramina.

Patient ID: 8711879                                                                                               
HX: Head trauma (2 months ago) and post-traumatic seizure. Male 49y
DX: Fusiform aneurysm at bifurcation of left MCA
Findings:
There is a relatively large lobulated signal void structure at left sylvian fissure (on both T1W and T2WI) with enhancement on post-Gd images.
MIP demonstrate an aneurysm at bifurcation of left MCA

Patient ID: 87095177
HX: Headache-nausea- vomiting- vertigo male 31y
DX: Ependymoma, anaplastic cellular type (proved)
Findings:
Large mass in the 4th ventricle with scattered hyperintense foci on pre-contrast T1WI consistent with intratumoral hemorrhage and heterogeneous enhancement on post-Gd images and obstructive hydrocephalus.
Discussion:
Third most common posterior fossa tumor in children
(after pilocytic astrocytoma and PNET – MB)

Patient ID: 88013725
HX: Headache-blurred vision .male 31
DX: AVM (Arterovenous malformation) Medium size
Findings:
Curvilinear signal void structures in left parietal lobe with draining veins into the straight and superior sagital sinus and feeding arteries possibly arising from right PCA and right MCA
Discussion:
MRA is useful for mapping the AVM. The definitive study is cerebral angiography. The diagnosis is made by demonstrating an enlarged feeding artery, the core or nidus and the enlarged draining veins.

Patient ID: 87125323
HX: Left hemiparesis for 2 days .male78y
DX: Acute right middle cerebral artery infarct involving the precentral gyrus
Findings:
Abnormal signal in right MCA territory high signal on DWI and low on ADC map
Discussion:
DWI is very sensitive and specific technique for cerebral ischemia in the first 3 hours after the onset of ischemia. The duration of restricted diffusion (low ADC, bright on DWI) is about 10 to 14 days.
The ADC then normalizes (pseudonormalization) following that it becomes elevated (encephalomalacia)

Patient ID: 87125272
HX: Left hemiparesis for 2 days.male 87y
DX: Acute pontine infarct
Findings:
Small lesion in right side of pons high signal on DWI and low on ADC map which is hardly visible on T2WI / FLAIR
Discussion:
DWI can detect cerebral ischemia within about 30 minutes of its onset but conventional MR is positive within a few hours, after cerebral infarction

Patient ID: 88013675
HX: Right sided headache .male 53y
DX: Acoustic neurinoma
Findings:
Enhancing mass in right CPA cistern with extension into the right IAC

Patient ID: 88012026
HX: Pain and palpable bony prominence .male 29y
DX: Osteoid osteoma
Findings:
A small well-defined lesion within the cortex of distal humeral diaphysis with surrounding cortical hyperostosis, a small central nidus, bone marrow edema and perilesional soft tissue edema.
Discussion:
Benign tumor consisting of osteoblastic mass (nidus) surrounded by zone of reactive sclerosis

Patient ID: 88012768
HX: Palpable mass at right upper thigh .female 28yDX: Low grade fibrosarcoma (proved)

Findings:
Relatively large well-defined mass at right upper thigh and right inguinal region high signal on T2WI and isosignal to muscles on T1WI