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  • New member:

    Mina Bebawy

    Radiologist Egypt, Cairo

    ...

  • Michele Foresti

    2019-07-06 13:42:11 Visible by anyone.
  • Antonella Smedile Abdominal Imaging 01/07/2018

    A 52 year old caucasian woman, with history of ovarian pelvic pain and without any systemic symptoms, underwent a transvaginal ultrasonography, in which was detected a right ovarian enlargement. Compu...

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  • Federico Marturano Neuroradiology 01/07/2015

    A 21-years-old man was brought to the Emergency Room with history of acute onset of tetraplegia after falling asleep and having spent the night on the chair with his elbows on his knees and his head i...

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  • New member:

    Balaji Jeevanandham

    Radiologist India, Tamilnadu

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  • Jeremy Lam

    2018-08-15 08:12:18 Visible by anyone.

    Case of persistent trigeminal artery associated with a cavernous carotid aneurysm. Join the debate- incidental or increased incidence? 

  • New member:

    Tafseer Ahmed

    ,

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  • Charles Li Neuroradiology 05/24/2017

    Case History: A two-year-old female with homocystinuria due to CBS deficiency was admitted to improve metabolic control after incidentally finding mild asymptomatic bilateral papilledema on routine o...

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  • yudell edelstein

    2019-02-09 21:57:24 Visible by anyone.

    Comment my case

    Ruptured Mucinous Adenocarcinoma of the Appendix
    The uploaded images are not showing up

  • Jeremy Lam

    2018-08-15 08:11:45 Visible by anyone.
  • Elie Najem

    2018-11-12 03:05:02 Visible by anyone.

    Questions and Answers:

     

    1.      The most common site of intracranial calcifications in the pediatric population is:

    a.       Cerebellum

    b.      Periventricular region

    c.       Pineal gland

    d.      Thalamus

    e.       Falx cerebri

     

    Answer: c. In the pediatric population, they are typically seen in the pineal gland and choroid plexus. Pineal calcifications <1cm, appear as dots and tend to be benign in 40% of individuals less than 20 years old. Whereas pineal calcifications >1cm in patients younger than 9 years should be regarded as pathologic and warrant further investigation.

       

    2.      A blush-like pattern calcifications in the bilateral basal ganglia in a child is typically seen in:

    a.       Tuberous sclerosis

    b.      Raine syndrome

    c.       Krabbe’s disease

    d.      Sturge-Weber  syndrome

    e.       Neurofibromatosis

     

    Answer: c. Krabbe’s disease is an autosomal recessive demyelinating disorder affecting infants due to galactocerebroside b-galactosidase deficiency leading to accumulation of abnormal lipids. A symmetrical blush-like pattern of calcifications in the bilateral basal ganglia is characteristic.

     

    3.      A 3 day-old boy was admitted to the neonatal intensive care unit after an episode of tonic-clonic seizure. His mother denied prenatal care. Non-contrast CT was showed both sub-ependymal and periventricular calcifications with cerebral volume loss. What is the most likely diagnosis?

    a.       Tuberous sclerosis

    b.      Congenital CMV

    c.       Congenital hypothyroidism

    d.      Neurofibromatois

    e.       Hypoglycemia-induced seizure

     

    Answer: b. Congenital Cytomegalovirus (CMV): Incidence is 0.2-2.4% of live births. Intracranial calcifications are seen in 77% of those with imaging abnormalities typically in the sub-ependymal and periventricular regions of the brain along with brain atrophy.

       

    4.      Among all the intra-axial brain tumors, which of the following is mostly associated with intracranial calcifications?

    a.       Oligodendroglioma

    b.      Pilocytic astrocytoma

    c.       Dysembryonic neuroectodermal tumors

    d.      Medulloblastoma

    e.       Metastasis

     

    Answer: a. Oligodendrogliomas exhibit the highest frequency of calcifications (up to 90%). Calcifications can be scattered dots or clumped together to form large nodules, located centrally or peripherally and frequently in the frontal lobes.

       

    5.      A 50-year-old female patient presented with dry coughfatigue, and shortness of breath. On physical exam she has tender reddish bumps on the skin. Review of the systems revealed seizures and depression. CXR showed enlarged hilar lymph nodes and CT scan of the brain showed small calcified masses in the leptomeninges and periventricular white matter. What is the most likely diagnosis?

    a.       Hypothyroidism

    b.      Hyperparathyroidism

    c.       Hemochromatosis

    d.      Chronic lead toxicity

    e.       Sarcoidosis

     

    Answer: e. Sarcoidosis affects many organs including the CNS, lungs and skin. On non-contrast CT scan of the brain, small calcified granulomas can be seen in the leptomeninges, periventricular white matter, pons, hypothalamus, pituitary stalk, and optic chiasm with varying degrees of edema.

     

  • New member:

    Rachel McNamara

    Technologist United States, Wisconsin

    ...

  • Other resident Indonesia, Jakarta

    Pediatric wanna be!...

  • UMESH MITTAL Chest & Cardiac Imaging 12/15/2014

    A coronary cameral fistula (CCF) is an abnormal communication between a coronary artery and any cardiac chamber . CCF is an uncommon disorder with an incidence of 0.1% in patients undergoing coronary ...

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  • New member:

    stefania ghinassi

    ,

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  • Technologist United States, FL

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  • New member:

    Holger Spittank

    Non-Radiologist physician Germany,

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  • New member:

    Konstantin Dmitriev

    Other resident Ukraine,

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  • New member:

    Jovana Gelic

    Radiology resident Serbia,

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  • New member:

    Sumit Sharma

    Radiology resident India, Pondicherry

    ...

  • New member:

    RANJAN KUMAR PATEL

    Radiologist India, SAMBALPUR

    ...

  • Matias Alet Neuroradiology 02/20/2017

    Good evening, The arterial dissection at the level of the posterior vascular system is a recognized cause of stroke. This can happen at the extra or intracranial level. The PICA has an intracranial...

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  • New member:

    Bryan len

    Technologist Australia, WA

    ...

  • New member:

    Aditya Mehta

    Non-Radiologist physician United States, KS

    ...

  • New member:

    Md Mozammel Hossen

    Technologist student Bangladesh, Bangladesh

    ...