30 results
Proptosis - Differential Diagnosis - Unilateral vs Bilateral
Unilateral:
 • Infections (can become bilateral with cavernous sinus
Diagnosis - Unilateral ... breast, prostate, lung ... Fevers • Eye pain ... #Diagnosis #Unilateral ... #Bilateral #Causes
Tinnitus - Subjective (heard only by patient) - 90% - Differential Diagnosis Algorithm
Unilateral On Audiogram -
patient) - 90% - Differential ... Diagnosis Algorithm ... Audiogram - Perform MRI ... Whiplash • Skull Fracture ... #Causes
Bilateral B-Lines in case of Pneumonia on Lung POCUS

Young healthy pt with fever/dyspnea. POCUS lung exam
on Lung POCUS ... POCUS lung exam ... Differential Bilat ... Lung POCUS shows ... NOT definitively diagnose
Pulmonary Pathology and Associated Lung Ultrasound Findings
Pneumothorax:
 - No lung sliding/barcode sign
 - Lung point (hard
pleura in severe cases ... submassive PE) POCUS ... #pulmonary #differential ... #diagnosis #signs ... #Lung #POCUS #ultrasound
Causes of Back Pain - Differential Diagnosis Algorithm
Always assess for red flags. If no red flags,
Causes of Back Pain ... - Differential ... Diagnosis Algorithm ... of neoplasm • Fracture ... #Causes
Back Pain - Differential Diagnosis
Primary Back Pathology:
 • Musculoligamentous injury (a.k.a. lumbosacral strain)
 • Spondylosis (i.e.
Back Pain - Differential ... Diagnosis Primary ... (most common: lung ... #Differential # ... Diagnosis #causes
Vascular Joint Pain - Differential Diagnosis Algorithm 
 - Constant Pain (Ischemia)
 - Acute Onset
 -
- Differential ... Diagnosis Algorithm ... Embolism (e.g. fractured ... long bone) • ... #Orthopedics #Causes
Cauda Equina Syndrome Overview

Cauda Equina Syndrome:
 • Prevalence: 1:33,000-100,000 ppl/yr
 • Incidence: 1.5-3.4 million ppl/yr
 •
• S - Saddle anesthesia ... - Emergency Causes ... Diagnosis: • ... Imaging studies: • MRI ... #diagnosis #causes
Lower Extremity Dermatomes and Myotomes
Reflexes: 
 • Knee - L2, L3, L4
 • Ankle - S1
Syndrome - Low back pain ... saddle (perineal) anesthesia ... dysfunction, and bilateral ... Commonly caused ... such as fibular fracture
Causes of Bone/Joint Pain in Sickle Cell Disease
Vaso-occlusive pain:
 • Mechanism: ischemic pain
 • Can present
Causes of Bone/Joint ... Generally affects long ... • XR, MRI to ... • Differentiate ... #diagnosis #causes