14 results
Appearance of Liver Lesions on Various Imaging Modalities
 • Computed Tomography (CT) - Arterial Phase, Portal
Appearance of Liver Lesions ... hepatobiliary phase • Contrast ... Congenital hemangioma, Focal ... Metastasis #Liver #Lesions ... differential #diagnosis #comparison
Appearance of Liver Lesions on Contrast Enhanced Ultrasound - Early arterial, Grayscale phase, Late arterial phase,
Appearance of Liver Lesions ... on Contrast Enhanced ... Congenital hemangioma, Focal ... Metastasis #Liver #Lesions ... differential #diagnosis #comparison
Appearance of Liver Lesions on Computed Tomography (CT) - Arterial Phase, Portal Venous Phase and Delayed
Appearance of Liver Lesions ... Congenital hemangioma, Focal ... Metastasis #Liver #Lesions ... differential #diagnosis #comparison
Neurological Manifestations of Tuberculosis
Spinal Arachnoiditis & Polyradiculopathy:
 • Subacute onset of limb weakness, bladder/bowel dysfunction, muscle
ring-enhanced lesion ... Headache, fever, focal ... multiloculated, contrast ... headache, seizures, focal ... ring-enhancement lesion
Allopecia - Differential Diagnosis Framework for Hair Loss

Localized / Focal Hair Loss Pattern:
 • Scarring Alopecia:
Localized / Focal ... Tinea Capitis, Trichotillomania ... or erythema and local ... Consider HIV) • Contact
Cold Urticaria
Prevalence - 0.05% in the population
Disease onset - Mostly 2nd to 4th decades of life
Causes
- Direct skin contact ... patients Skin lesions ... #rheumatology #comparison
Summary table of types of hypersensitivity reactions. 
Type 1
 - Mediators: lgE
 - Antigen Form: Soluble
chain causing local ... ) - Examples: Contact ... classification #comparison
Clinical Characteristics of Simple vs Complex Cutaneous Leishmaniasis 
Simple CL
 - Caused by a Leishmania species
or a few skin lesions ... - Small lesion ... and Brazil - Local ... individual skin lesion ... Leishmaniasis #diagnosis #comparison
Perirenal Extramedullary Hematopoiesis - Magnetic resonance imaging of the abdomen, performed without the administration of contrast
administration of contrast ... ascites, and rimlike lesions ... left perirenal lesion ... yellow arrow), with focal
Childhood Immunization Schedule: Why we immunize
 • Diphtheria Toxin -> URT inflammation causes pseudomembrane with hardened
Polio Virus -> Fecal-oral ... persists as skin lesions ... Transmitted by direct contact