11 results
Infectious Joint Pain - Differential Diagnosis Algorithm 
Polyarticular Join Pain
 • Viral Myalgia
 • Viral Arthritis
(Dermatitis, Migratory ... Papules & Mucosal Lesions ... like rash) • Primary ... Septic Bursitis • Abscess ... #Orthopedics #Causes
Causes of Headache - Differential Diagnosis Algorithm
Primary: Tension, Migraine, Cluster
Extracranial: Medications, Sinusitis, TMJ disorder, Cervicogenic, Glaucoma,
Causes of Headache ... - Differential ... Sinusitis, TMJ disorder ... PRES, Moyamoya Infectious ... Encephalitis, Abscess
Pustular Skin Rash - Differential Diagnosis Algorithm
Pruritic / Scaly / Erythematous lesions, usually poorly demarcated
Acneiform -
/ Erythematous lesions ... drinks • Perioral Dermatitis ... borders of lips Infectious ... #Pustular #SkinRash ... #causes
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
Purpura - Differential ... hemorrhagic skin lesions ... /Quantity: • Primary ... SLE) - Viral infections ... Pigmented Purpuric Dermatosis
Lung Nodule - Differential Diagnosis Algorithm
Nodule on > 2 Years Without a Change in Size:
 •
Granuloma • Abscess ... Malignancy: • Primary ... Metastases ("cannonball lesions ... Breast, Testicle) Infection ... #Causes #Pulmonary
Spinal Cord Disorders - Differential Diagnosis Framework

Spinal cord neurological lesion:
Clinical findings:
 • Symptoms and signs below
- Differential ... Non-compressive Spinal Cord Causes ... Infections: - ... Actinomyces, Blastomyces dermatitidis ... #algorithm
Causes of Petechial Rash - Differential Diagnosis Algorithm

Pinpoint areas (less than 2 mm) of hemorrhage, which
Causes of Petechial ... Rash - Differential ... Diagnosis Algorithm ... Abnormalities in primary ... Vasculitis - Collagen disorders
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
polymicrobial infection ... stable residual lesion ... Blastomyces - Dermatitidis ... Differential Diagnosis ... #causes #management
CNS Infection in HIV / AIDS - Differential Diagnosis Framework

Principles of HIV-Associated CNS Opportunistic Infections:
 •
HIV / AIDS - Differential ... Suspect in movement disorders ... tuberculomas, or abscesses ... Demyelinating disease caused ... #differential #
Nontuberculous Mycobacteria (NTM) Infections 

Mycobacterial species other than those belonging to the Mycobacterium tuberculosis complex and
status NTM Cause ... Nodular or cavitary lesions ... Growers (Runyon Classification ... • Primarily occurs ... #differential #