5 results
Reverse Halo Sign
Defined as a central ground class opacity surrounded by a ring of dense consolidation
Differential
Reverse Halo Sign ... Pneumocystis jiroveci • Autoimmune ... neoplasms, metastatic disease ... Reverse #Halo #Sign ... #differential #
Weakness - Differential Diagnosis Framework

Approach To Weakness:
 • Non-neuromuscular disorder (Cardiac, pulmonary etc)
 • CNS ->
Weakness - Differential ... disorder (Cardiac, pulmonary ... Lack of UMN/LMN signs ... necrotizing myopathy • Autoimmune ... #Weakness #Differential
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
Vasculitis - Differential ... Vasculitis Differential ... purpura: Strong sign ... chorioretinitis, CNS ... #Vasculitis #Differential
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
Infections in HIV - Differential ... Diagnosis Framework Disease ... • CT: Halo sign ... Lymphadenopathy, CNS ... Infections #HIV #AIDS #pulmonary
Autoimmune Myositis - Differential Diagnosis Framework

Inflammatory Myopathies: Commonly symmetric proximal muscle weakness, no substantial muscle pain
- Differential ... papules and Gottron sign ... ) • Shawl sign ... nucleotidase 1A (Anti cN ... #rheumatology #differential