16 results
Causes of Knee Effusions - Differential Diagnosis Framework

Knee Effusion Red Flags:
1. Fever/Chills/Joint pain/Night sweats/Weight loss
	- DDX:
		-
- Differential ... Diagnosis Framework ... - Aneurysmal bone ... #diagnosis #msk ... #physicalexam
Ascites - Differential Diagnosis
Chronic liver disease (cirrhosis or chronic hepatitis) - 80%
Underlying malignancy - 10%
Congestive heart
Ascites - Differential ... Diagnosis Chronic ... Fitz-Hugh-Curtis syndrome ... ), HIV-related, ... Diagnosis #hepatology
Causes of Bone/Joint Pain in Sickle Cell Disease
Vaso-occlusive pain:
 • Mechanism: ischemic pain
 • Can present
• Most common sites ... : hip, shoulder ... • Differentiate ... #diagnosis #causes ... #hematology
Causes of Ascites
Normal Peritoneum
Portal hypertension (SAAG > 1.1 g/dL)
  1. Hepatic congestionl
- Budd-Chiari syndrome ... - Nephrotic syndrome ... #Causes #diagnosis ... #differential # ... hepatology #SAAG
Causes of Thrombocytopenia - Differential Diagnosis Framework
Decreased Production:
 - Drugs (chemo, yang, sulfa, acetaminophen, NSAIDs, quinine,
Diagnosis Framework ... etc) - Viral: HIV ... folate def - Bone ... antiphospholipid syndrome ... #hematology
Bone Deformity / Limp - Differential Diagnosis Algorithm 
Infection
 • Septic Arthritis
 • Cortical Hypertrophy
 •
Bone Deformity / ... Limp - Differential ... Legg-Calve-Perthes Disease Knee ... Patellofemoral Syndrome ... Deformity #Limp #MSK
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
Purpura - Differential ... Diagnosis Framework ... Drug induced - Bone ... Ig A vasculitis/HSP ... #Diagnosis #hematology
Leg Pain - Differential Diagnosis Framework

Bone/Joint Causes of Leg Pain:
 • Fracture
 • Arthritis
 • Gout/pseudogout
Leg Pain - Differential ... Diagnosis Framework ... Bone/Joint Causes ... #extremity #msk ... #physicalexam
Approach to Joint Pain

History:
Is the pain from:
	• Joint
	• Adjacent bursa
	• Tendon
	• Ligament
	• Bone
	• Muscle
	• Referred from
• Ligament • Bone ... e.g., congenital hip ... #Joint #Pain #MSK ... approach #workup #differential ... #diagnosis #arthritis
Cauda Equina Syndrome Overview

Cauda Equina Syndrome:
 • Prevalence: 1:33,000-100,000 ppl/yr
 • Incidence: 1.5-3.4 million ppl/yr
 •
(CES) is usually ... Diagnosis: • ... cord infarct • HIV ... #differential # ... diagnosis #causes