James Smirniotopoulos
James Smirniotopoulos
  • 32
  • 78 315
MedPix Video - Supratentorial Lesions
The three most important rules of Neuroradiology & Neurology:
Location, Location, Location
A brief review of classic supratentorial lesion locations, differential diagnosis, and Radiologic-Clinicopathologic correlations.
มุมมอง: 872

วีดีโอ

Posterior Fossa Masses
มุมมอง 1.8K3 ปีที่แล้ว
This is review of the localization and differential diagnosis of posterior fossa (infratentorial) masses identified onMRI and CT, emphasizing Radiologic-Clinicopathologic correlation.
CNS Infections: Radiologic-Pathologic Correlation
มุมมอง 3.9K3 ปีที่แล้ว
Learning Objectives: Describe host vs. pathogen interactions Distinguish Meningitis from Subdural Empyema Describe Complications of Abscess Distinguish Inflammatory Encephalitis from Stroke Explain fungal vasculitis
Spinal Neoplasms: Radiologic-Pathologic Correlation
มุมมอง 3284 ปีที่แล้ว
The differential diagnosis of spinal neoplasms begins with localizing the lesion: Intramedullary; Intra-dural Extramedullary (subarachnoid or extraaxial); and, Extradural.
MedPix Video - Extraaxial Tumors: Meningioma
มุมมอง 7704 ปีที่แล้ว
Meningioma is the most common non-glial primary tumor Meningioma is the most common extraaxial neoplasm Most meningiomas have “typical imaging” Hemispheric, homogeneous, broad based on the dura, with hyperostosis, hormonally sensitive (2F:M) Some meningiomas have “atypical imaging” Hemangiopericytoma is NOT a meningioma Differential Diagnosis: Dural Lymphoma & Metastases (Breast, Prostate); Mye...
MedPix Video - Pineal Region Masses
มุมมอง 2.9K4 ปีที่แล้ว
Most common pineal abnormality is cyst Most common “pineal” neoplasm is GCT (germ cell tumor) Germinoma - homogeneous engulf Ca Teratoma - heterogeneous w/lipid Pineocytoma/Pineoblastoma may decrease ADC Parinaud/Tectal Syndrome vertical gaze dysfunction Hydrocephalus & Growth Vector push masses into the posterior fossa Other lesions: VOG malformations (flow void), meningioma (attached to dura)...
MedPix Video - The Phakomatoses: von Recklinghausen Neurofibromatosis (NF1)
มุมมอง 1.5K4 ปีที่แล้ว
NF1 is the 3rd most common autosomal disorder, caused by loss of a tumor suppressor gene on 17q. Cafe-au-lait macules, cutaneous and PNS neurofibromas, optic pathway gliomas, and many other lesions are common.
MedPix Video - Diffuse Gliomas
มุมมอง 4.2K4 ปีที่แล้ว
The majority of adult primary intraaxial brain tumors diffusely infiltrate the brain, making resection difficult. Most Diffuse Gliomas Gr 2-3 have IDH mutations (70-100%) Astrocytoma adds ATRX & p53 mutation, they don’t enhance Oligodendroglioma adds 1p19q; best prognosis of diffuse glioma; chunky calcification; may enhance Glioblastoma Gr 4, 90% are 1º w/o IDH mutations; have worst prognosis; ...
MedPix Video - Circumscribed Gliomas
มุมมอง 1984 ปีที่แล้ว
Circumscribed Gliomas are well-demarcated and amenable to surgical resection. Most circumscribed glioma are Gr 1; BRAF mutations Most circumscribed glioma enhance; often with “cyst” Most circumscribed glioma do not progress from Gr 1
MedPix Video - Non-glial Tumors: Chordoma Radiology
มุมมอง 2984 ปีที่แล้ว
Chordoma Location Midline Clivus May extend lateral, dorsal, ventral Midline Sacrum Lobulated Heterogeneous Bulky Mass Bone destruction NO repair or remodeling of bone Variable Attenuation & Signal - often “watery” (Gray T1; Bright T2) Bone sequestra and Dystrophic calcifications
MedPix Video - Cysts of the CNS Radiology
มุมมอง 2514 ปีที่แล้ว
Epithelial Cysts of the CNS Arachnoid (middle fossa) Epidermoid (CPA, suprasellar, etc) Dermoid (midline dorsal/ventral) Colloid (3rd ventricle) Craniopharyngioma (suprasellar) Rathke Cleft (intrasellar) Choroid & Ependymal Endodermal (usually posterior fossa)
MedPix Video - Phakomatoses: von Hippel-Lindau Syndrome
มุมมอง 3524 ปีที่แล้ว
von Hippel-Lindau Syndrome: 1 per 36,000 live births No racial/gender predilection Autosomal Dominant Chromosome 3 mutation 3p26-p25 Missense/Truncation disrupt folding of VHL protein Almost all with “pathogenic mutation” have Sx by 65 yrs VHL mutation alters ubiquitin ligase that normally degrades hypoxia-inducible factors HIF-1α and HIF-2α, altered protein causes elevated levels of HIF Manife...
MedPix Video - Phakomatoses - Neurofibromatosis Type 2 (Wishart Disease)
มุมมอง 1974 ปีที่แล้ว
Demographics: Birth Incidence: 1/25-50,000 Prevalence of NF2 is 1:60,000 Inheritance: Autosomal Dominant Age at Presentation: Birth to 40's (peak in 20’s) Sx at Presentation: Hearing loss from VS Diagnostic Criteria: VIII masses Chromosome Abnl.: 22q12.2 Cutaneous Findings: minimal (skin tags) CNS Findings: Multiple Lesions; Inherited Mutation;Schwannoma; Meningioma; Ependymoma (intramedullary ...
MedPix Video - Phakomatoses: Tuberous Sclerosis Radiologic-Pathologic Correlation
มุมมอง 2764 ปีที่แล้ว
MedPix Video - Phakomatoses: Tuberous Sclerosis Radiologic-Pathologic Correlation
Banggood ATTiny85 Failure
มุมมอง 2335 ปีที่แล้ว
Banggood ATTiny85 Failure
Nootropic Lumazoid Visualizer
มุมมอง 1K6 ปีที่แล้ว
Nootropic Lumazoid Visualizer
Developmental Venous Anomaly (Venous Angioma)
มุมมอง 2.2K8 ปีที่แล้ว
Developmental Venous Anomaly (Venous Angioma)
ICU Chest Radiography
มุมมอง 7758 ปีที่แล้ว
ICU Chest Radiography
Hypertensive Hemorrhage
มุมมอง 5K8 ปีที่แล้ว
Hypertensive Hemorrhage
Primary CNS (Brain) Lymphoma
มุมมอง 10K8 ปีที่แล้ว
Primary CNS (Brain) Lymphoma
Neurofibromatosis: NF2 and the MISME Syndrome
มุมมอง 1.4K8 ปีที่แล้ว
Neurofibromatosis: NF2 and the MISME Syndrome
Pancoast Tumor & Horner Syndrome
มุมมอง 14K8 ปีที่แล้ว
Pancoast Tumor & Horner Syndrome
Black & White and Red All Over - Blood Imaging on MR
มุมมอง 5498 ปีที่แล้ว
Black & White and Red All Over - Blood Imaging on MR
MedPix COW 687 - Kallmann Syndrome
มุมมอง 3228 ปีที่แล้ว
MedPix COW 687 - Kallmann Syndrome
Brain Imaging - Ring Enhancing Lesions
มุมมอง 6378 ปีที่แล้ว
Brain Imaging - Ring Enhancing Lesions
Brain Physiology - Autoregulation of Blood Flow
มุมมอง 2K8 ปีที่แล้ว
Brain Physiology - Autoregulation of Blood Flow
MedPixCOW#13891 Carbon Monoxide Intoxication
มุมมอง 1178 ปีที่แล้ว
MedPixCOW#13891 Carbon Monoxide Intoxication

ความคิดเห็น

  • @greensage395
    @greensage395 5 หลายเดือนก่อน

    I figure that it is not so much that I extend my life, only that I eliminate Pain up until that Time should come when I get that Knock upon the Door! I will see my Oncologist tomorrow Morning...I know I don't have Horner Syndrome as I sweat every night!

  • @zahiralmoqbali7662
    @zahiralmoqbali7662 9 หลายเดือนก่อน

    What a great talk 👌

  • @chinmoy11091987
    @chinmoy11091987 ปีที่แล้ว

    Utmost respect 🙏. U r like guru dronacharya to ekalavya..❤

  • @stellavasileiadou3450
    @stellavasileiadou3450 ปีที่แล้ว

    Hi , Dr. I’m Greek as well. I’m really worried . I had a chest X-ray in January and it was completely clear . I’m having nerve shoulder pain and armpit pain , sometimes lower back pain too. Could I have a Pancoast Tumor ?

    • @KDONeal1
      @KDONeal1 11 หลายเดือนก่อน

      How did the test go?

  • @jaxondakota7080
    @jaxondakota7080 2 ปีที่แล้ว

    Can this be fixed?

  • @emmapoole1828
    @emmapoole1828 2 ปีที่แล้ว

    Can lung cancer be missed on ct scan

  • @elizabethsmith3416
    @elizabethsmith3416 2 ปีที่แล้ว

    Thank you so much this is very informative.

  • @godwinogbole8834
    @godwinogbole8834 2 ปีที่แล้ว

    Thanks for this education

  • @The-Seeker-
    @The-Seeker- 3 ปีที่แล้ว

    Very informative! I am confused why dislikes for such an awesome presentation!

  • @BadDoc86
    @BadDoc86 3 ปีที่แล้ว

    Perfect.

  • @rumeysaeed1
    @rumeysaeed1 4 ปีที่แล้ว

    Thanks Sir, it helped so much.

  • @jaquelinemanuel5716
    @jaquelinemanuel5716 4 ปีที่แล้ว

    Thank you doctor. I like the way you present the case and the way you explain it.

  • @lufmm21
    @lufmm21 5 ปีที่แล้ว

    thank you.

  • @sujanthapa7657
    @sujanthapa7657 6 ปีที่แล้ว

    very very informative....thank you sir

  • @abdullahalhindi2805
    @abdullahalhindi2805 6 ปีที่แล้ว

    Thank you . It was very informative presentation

  • @plymouthlad38
    @plymouthlad38 7 ปีที่แล้ว

    I can appreciate the thought of being calm if you had low testosterone but it is certainly no fun being a 20 year old still being told you are a "late bloomer" and "wait and see" while studying at University. Early diagnosis and treatment makes so much difference with this condition. I feel strongly that delayed puberty should be taken more seriously if present after the age of 15 in girls and 16 in boys, especially if there are other warning signs present such as lack of sense of smell, hearing problems, cleft lip or palate, mirror movements of the hands or scoliosis.

  • @plymouthlad38
    @plymouthlad38 7 ปีที่แล้ว

    I have Kallmann syndrome. I was diagnosed at the age of 23 having been dismissed as a "late bloomer" or "late starter" all through all my teenage years. Until I was diagnosed no doctor asked about my sense of smell, on the other hand I never thought to mention it either. I also have problems with my hearing which is also linked to Kallmann syndrome.

  • @tecmedimagen
    @tecmedimagen 7 ปีที่แล้ว

    THANKS

  • @tecmedimagen
    @tecmedimagen 7 ปีที่แล้ว

    Thanks!!