11 results
Giant Cell (Temporal) Arteritis: Pathogenesis and investigations
Risk Factors:
 - Unclear environmental triggers (may be viral, not
yrs old; F>M Signs ... Anemia - Giant cells ... Temporal #Arteritis #Pathophysiology ... #Diagnosis #Signs ... #Symptoms #Vasculitis
Nephron Remodeling as a Mechanism of Diuretic Resistance. When high doses of loop diuretics are used
used on a long-term ... , principal cells ... and intercalated cells ... #Pathophysiology ... NephronRemodeling #NEJM
IgA Vasculitis – Henoch Scholein Purpura: Pathogenesis and Clinical Findings

 - Infectious Agents - 50% have
IgA Vasculitis – ... various inflammatory cells ... histopathologic term ... HenochScholeinPurpura #Pathophysiology ... #Diagnosis #Signs
Tinea Capitis in a Newborn- A 3-week-old male newborn was brought to the pediatrician with three
Tinea Capitis in ... Tinea capitis, a ... #clinical #photo ... #NEJM #tinea #capitis ... #ringworm #derm
Acute Rheumatic Fever: Pathogenesis and Clinical Findings

Delayed autoimmune reaction
-> Molecular mimicry
-> GAS antigen cross-reacts with host
->
B and CD-4+ T cells ... Prolonged PR Interval, Carditis ... RheumaticFever #pathophysiology ... #diagnosis #signs
Polyarteritis Nodosa (PAN): Pathogenesis and Clinical Findings

Medical Comorbidities Malignancies (most commonly hairy-cell leukemia)
Immunogenetic Predisposition: patient is
vascular endothelial cells ... PolyarteritisNodosa #Pathophysiology ... #Diagnosis #Signs ... #Symptoms #Vasculitis
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
Vasculitis - Differential ... When to Consider Vasculitis ... purpura: Strong sign ... Multinucleated giant cells ... pulmonary infiltrates/cavities
Lupus (SLE): Mucocutaneous Manifestations

 • Langerhan cells and keratinocytes release cytokines -> localized inflammatory response ->
• Langerhan cells ... removal of these cells ... Livedo Reticularis, Vasculitis ... Manifestations #pathophysiology ... #diagnosis #signs
Mastoiditis: Pathogenesis and clinical findings

Acute or Chronic Otitis Media -> 
Stage 1: Hyperemeia of the mastoid
the mastoid air cells ... and mastoid air cells ... larger & irregular cavities ... #Mastoiditis #pathophysiology ... #signs #symptoms
Pyoderma Gangrenosum in Ulcerative Colitis- ...left chest (Panel A) and leg (Panel B). The physical examination
in Ulcerative Colitis ... leukocytoclastic vasculitis ... #clinical #photo ... #NEJM #pyoderma ... #derm