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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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  • praveen reddy Musculoskeletal Imaging 08/18/2015

    Evidence of lytic expansile SOL with thin internal bony septations&thinning of cortex withmultiple focal breaches seen involving the neck, ramus & body of right side of mandible extending caudally i...

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  • Eslam Youssef

    2018-07-13 23:01:37 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:

    Marshall Rutherford

    Medical student United States, MI

    about me...

  • New member:

    Ferhan Bulca

    Industry representative Canada, Ontario

    I am a co-founder and the CEO of Acumyn Inc., specializing in device quality control in radiotherapy and radiology. AQUA Radiotherapy is being marketed exclusively by Elekta and is commercially availa...

  • Michele Foresti

    2019-04-23 12:03:20 Visible by anyone.
  • Roland Talanow

    2019-07-12 17:23:50 Visible by anyone.

    Take a vote! Help us enhance the interpretability of A.I. systems in Radiology:

     

    Artificial Intelligence (A.I.) systems are achieving remarkable performances in radiology, but at the cost of increased complexity. Hence, they become less interpretable.


    As these systems are pervasively being introduced to radiology, we believe it becomes imperative to develop dedicated methodologies to enhance the interpretability of A.I. technologies.


    Interpretability methods could help physicians to decide whether they should follow/trust a prediction from an A.I. system. Ultimately, interpretability of A.I. systems is closely linked to safety in healthcare.


    The following poll is meant to collect radiologists’ opinions about methods to enhance the interpretability of A.I. systems developed to assist radiologists.


    https://www.surveymonkey.com/r/interpretableAI


    We thank you in advance for taking 5 minutes to answer this poll. The results of the poll are going to be made publicly available and part of a related publication where this topic will be discussed.


    On behalf of the organisers and supporters of iMIMIC Workshop (Interpretability of Machine Intelligence in Medical Image Computing) 

  • New member:

    Md ziaul Haque

    Radiologist United Arab Emirates,

    ...

  • New member:

    Balaji Jeevanandham

    Radiologist India, Tamilnadu

    ...

  • Peter Sadeghi Neuroradiology 08/14/2017

    This is the first case report of an incidental ipsilateral acoustic neuroma detected during MRI following cholesteatoma surgery. Figure 1: Preoperative high-resolution CT (HRCT; contrast-enhanced ...

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  • Joshua Ellis

    2019-07-09 16:38:32 Visible by anyone.
  • shumyla jabeen Abdominal Imaging 08/14/2015

    70 year old male presented with abdominal pain and persistent bilious vomiting one month following Billroth II subtotal gastrectomy for gastric cancer. Ultrasound showed evidence of intussusception wh...

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  • New member:

    Hristo Hristov

    Radiologist Bulgaria,

    ...

  • New member:

    Timmy Hosein

    Radiology resident Trinidad And Tobago,

    ...

  • Andre Azevedo Interventional Radiology 09/17/2015

    Radiofrequency ablation (RFA) is considered a simple and safe modality for treatment of hepatic lesions. The benefits related to RFA include low morbidity, performance on an outpatient basis and the p...

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  • New member:

    santosh kumar

    Technologist student India, Telangana

    ...

  • Benjamin Abels Chest & Cardiac Imaging 02/28/2017

    Case Presentation: We present an educational case of an 85 y/o woman who repeatedly presented to peripheral hospitals and our tertiary care center with dyspnea on exertion and atypical chest pain, ra...

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  • New member:

    Andrew Lowe

    Radiologist United Kingdom, W Yorkshire

    ...

  • Jeffrey Gnerre Abdominal Imaging 11/12/2014

    Gallbladder varices are a rare form of collateralization that develops in patients with portal hypertension. We present here a case of gallbladder varices accurately diagnosed by contrast enhanced CT ...

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  • Amin Hoseinzadeh Abdominal Imaging 09/19/2017

    Of the reported cases of hepatic artery aneurysm so far, vascular pancreatitis related complications occur following sever pancreatitis e.g. necrotizing pancreatitis. We present an unusual patient who...

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  • New member:

    Neli Ilieva

    Radiology resident Bulgaria,

    ...

  • Rui Gil User Cases 05/15/2016

    We describe a case of a mature cystic teratoma of the ovary with high proportion of solid thyroid tissue (but less than 50%) in a childbearing woman. The patient presented with non-specific symptom of...

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  • KANIMOZHI DAMODARASAMY Chest & Cardiac Imaging 04/05/2015

    COMPUTED TOMOGRAPHIC IMAGES a, b - axial; c- multiplanar reconstructed images showing: ► - aneurysm component in the groove between aorta and left atrium, « - component of aneurysm dissecting int...

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  • Alaa Mahmoud Pediatric radiology 10/06/2017

    A 26 week-gestational age female with poor maternal prenatal care was emergently delivered via cesarean section due to poor waveform on umbilical artery Doppler. A fetal ultrasound prior to delivery d...

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  • New member:

    Ramy Abdelnaby

    Radiology resident Germany, NRW

    ...

  • New member:

    Elizabeth Lacey

    ,

    ...

  • Nicole Lamparello Interventional Radiology 01/27/2016

    A 41 year-old man presented to our institution for treatment of T7 and T8 compression fractures sustained during an epileptic seizure 3 months prior. Kyphoplasty under general anesthesia was complicat...

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  • Blair Lowery Interesting radiology cases. 01/16/2018

    Patient is a 39-year old female with a past medical history of Acute Myelogenous Leukemia in remission (1.5 years) who presented to the emergency department with AKI. Workup in ED included KUB which s...

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  • New member:

    Aakanksha Agarwal

    Radiology resident India, Rajasthan

    Resident, radiology, India...

  • New member:

    dilipan sankaran

    Radiology practitioner assistant India, tamil nadu

    ...