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  • New member:

    Girish Dongarwar

    Other (see other profession) India, Maharashtra

    ...

  • 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:

    Shamaita Majumdar

    Medical student United States, Missouri

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  • Jacob Miller

    2019-08-14 04:15:00 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.

     

  • aliza decruz

    2019-07-08 02:43:17 Visible by anyone.

    We are a dedicated, hard working and professional SEO company In USA, serving thousands of clients of various categories. We have the capability, rich experience and complete knowledge of understanding your business environment and apply the right solutions and professional SEO services to bring your business website in the top positions in the search engine results.

  • New member:

    Muhammad Asghar

    Other (see other profession) Pakistan, Kpk

    ...

  • Malvika Gulati

    2019-07-11 10:24:59 Visible by anyone.
  • New member:

    NUWAN HERATH

    ,

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  • New member:

    Joshua Strange

    Medical student United Kingdom,

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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? 

  • Sneha Harish C

    2019-09-01 05:20:47 Visible by anyone.

  • New member:

    Shweta Kataria

    Radiology resident India,

    ...

  • New member:

    Roshni. Anand

    Radiology resident Moldova, Karnataka

    ...

  • New member:

    meisam izadi

    Radiologist Iran, Islamic Republic Of,

    ...

  • New member:

    Yagut Huseyn

    Radiologist Azerbaijan,

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  • Armando Cavallo Musculoskeletal Imaging 10/25/2016

    A 70-year-old man presented to our Institution complaining swelling on the left flank and progressive pain rapidly increased over a period of six weeks. No injury or trauma were reported in the recent...

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  • New member:

    Rengin TÜRKGÜLER

    Radiologist Turkey,

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  • New member:

    Elena Piazza

    Radiologist Italy, italy

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  • New member:

    Olutunde Oluwole

    Non-Radiologist physician Nigeria, Oyo

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  • New member:

    Bryce Beutler

    Other resident United States, CA

    Internal medicine resident...

  • New member:

    Andrew Lowe

    Radiologist United Kingdom, W Yorkshire

    ...

  • Arvinder Singh Harbaksh Singh Musculoskeletal Imaging 04/03/2018

    A 31 year-old Malay gentleman, with no underlying co-morbidities except for being an active smoker, initially presented to us in the year 2008 with complaints of pain and swelling at the right mandibu...

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  • New member:

    WALIF CHBEIR

    Radiologist Canada, Quebec

    ...

  • New member:

    Bo Liu

    Radiology resident United States, Florida

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  • Radiologist India, ANDHRAPRADESH

    ...