37 results
Central retinal artery occlusion (CRAO). Positive "spot sign" on Ocular Ultrasound

78 yo M with sudden onset
Positive "spot sign ... " on Ocular Ultrasound ... Embolus #Clinical #POCUS ... #Ocular #Ultrasound
Maculopapular - Diagnostic Algorithm
Pathophysiology:
- Catch-all term with a wide range of potential pathophysiologic mechanisms and causative
Diagnostic Algorithm Pathophysiology ... range of potential pathophysiologic ... - Pathophysiology ... Ill-appearing, vital sign ... Mucocutaneous or ocular
Proximal aorta transverse view caudal to Figure 3. Note inferior vena cava (ivc), aorta (ao), anterior
transverse view caudal ... “clock mantle” sign ... Clinical #Radiology #POCUS ... #ClockMantle #Sign
Spondylolysis & Spondylolisthesis: Pathogenesis and Clinical Findings

Pars interarticularis stress fracture (spondylolysis) - most frequently in the
XR — scotty dog sign ... vertebrae • CT - collar ... MSK #diagnosis #pathophysiology ... #signs #symptoms
Growth Hormone Excess - Pathogenesis and clinical findings
 • Acromegaly and gigantism share the same pathophysiology
share the same pathophysiology ... overgrowth: • Carpal ... Overproduction #diagnosis #signs ... endocrinology #pathophysiology
Feedback Loop: Growth Hormone (GH)
Growth Hormone:
 • Liver -> GHR activates JAK-STAT pathway -> Incr IGF1
activates lipolysis Signs ... expansion (e.g. carpal ... endocrinology #pathophysiology
Selective Serotonin Reuptake Inhibitors: Mechanisms and Side Effects
 • Serotonin Syndrome:
   - Autonomic Hyperactivity:
Abnormalities: Ocular ... Serotonin #Inhibitors #Pathophysiology ... Psychiatry #Diagnosis #Signs
Trachoma: Pathogenesis and clinical findings

 • Environmental Factors -> Bacterial infection is encouraged by poor hygiene
from nasal or ocular ... in the superior tarsal ... Extensive upper tarsal ... Trachoma #Chlamydia #pathophysiology
Serotonin-Norepinephrine Reuptake Inhibitors(SNRIs): Mechanisms and Side Effects

Withdrawal: Dizziness, Diarrhea, Insomnia, Nausea, Vomiting
Serotonin Syndrome - Potentially Life
Abnormalities: Ocular ... SerotoninNorepinephrine #Inhibitors #Pathophysiology ... Psychiatry #Diagnosis #Signs
Total Anomalous Pulmonary Venous Return (TAPVR)
 • Introduction
 • Classification
 • Pathophysiology of TAPVR
 • Presentation
Classification • Pathophysiology ... Classic “snowman sign ... Outcomes by Cara