12 results
Cavitary Lung Disease - Differential Diagnosis and Workup Algorithm
Acute / Subacute:
 • Acute Infections: Lung abscess,
- Differential ... Emboli, Fungal Infection ... Nocardia Chronic (≥ 12 ... ): • Chronic Infections ... lesion #pulmonary #differential
Causes of Vitamin B12 Deficiency - Cobalamin
Decreased Intake
Pancreas: Insufficiency
Intestine: SIBO, Celiac disease, IBD, Lymphoma, Amyloidosis, Resection,
Causes of Vitamin B12 ... Resection, D. latum ... gastrectomy, H. pylori infection ... , B12 malabsorption ... Deficiency #Cobalamin #differential
Bilateral B-Lines in case of Pneumonia on Lung POCUS

Young healthy pt with fever/dyspnea. POCUS lung exam
POCUS lung exam ... Differential Bilat ... interstitial diffuse infections ... Lung POCUS shows ... Lung POCUS invaluable
Causes of Interstitial Lung Disease - Differential Diagnosis Algorithm
Idiopathic Interstitial Pneumonia
 • (UIP) Usual Interstitial Pneumonia
Disease - Differential ... intersitial space Infection ... Pneumonitis - 4-12 ... after exposure, 6-12 ... #ILD #Causes #Differential
Reticulocyte Production Index = (Retic %) x (Hct / 45) / Maturation Factor
The maturation factor is
approximately how long ... loss), Vitamin B12 ... (e.g. cancer, infection ... G6PD deficiency), Infections ... hematology #anemia #differential
Systemic Lupus Erythematosus - Diagnosis
Manifestations:
 - Arthritis 69%
 - Malar rash 40%
 - Fever 36%
 -
- Neurological 12% ... Myositis 4% - Lung ... (aPL) 30-45% Differential ... Other auto-immune, Infectious ... symptoms #mimickers #differential
Erythemas Summarized
Erythema ab igne
 • A dermatosis that results from repeated exposure to heat (fires, heating
inciting causes: infections ... cancers, including lung ... acute Parvovirus B19 ... infection (so-called ... comparison #table #differential
Hearing Loss - Differential Diagnosis Framework

Hearing Loss Types:
• Conductive
• Sensorineural
• Mixed
Presbycusis is the most common type
Hearing Loss - Differential ... Infection or cancer ... Tuning Fork Tests (512 ... ○ MS, CVA • Infectious ... Hearing #Loss #Differential
Lesions of the Spinal cord - Spinal Cord Syndromes

Spinal cord lesions can result in permanent neurologic
Infarction - Infection ... HIV) - Vitamin B12 ... patients with a long ... syndromes #lesions #differential
Etiologies of Vitamin B12 Deficiency
 • Inadequate intake - Rare but seen in very strict vegans
Etiologies of Vitamin B12 ... dissociated vitamin B12 ... Finally, infection ... Diphyllobothrium latum ... VitaminB12 #deficiency #differential