Dr. Gerald Diaz @GeraldMD
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Board Certified Internal Medicine Hospitalist, GrepMed Editor in Chief πŸ‡΅πŸ‡­ πŸ‡ΊπŸ‡Έ - Sign up for an account to like, bookmark and upload images to contribute to our community platform. Follow us on IG: https://www.instagram.com/grepmed/ | Twitter: https://twitter.com/grepmeded/
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Etiology of Splenic Infarction:
 β€’ Hypercoagulability: Factor V Leiden, Antiphospholipid syndrome, Malignancy
 β€’ Embolic disease: Atrial
Antiphospholipid syndrome ... Malignancy β€’ Embolic disease ... Lymphoma, Gaucher disease ... Wandering spleen syndrome ... differential #diagnosis #causes
Acute Pharyngitis: Differential Diagnosis
Infectious:
 β€’ Respiratory viruses (25-45%)
 β€’ Group A Strep (5-15%)
 β€’ Other bacteria:
Acute Retroviral Syndrome ... Diffuse viral syndromes ... disorders: Kawasaki disease ... PFAPA, Behcet syndrome ... Differential #Diagnosis #causes
Hirsutism & Virilization - Differential Diagnosis Algorithm
ADRENAL EXCESS
Ovarian
 β€’ Polycystic Ovarian Syndrome
 β€’ Hyperthecosis
 β€’ Tumor
Adrenal
Polycystic Ovarian Syndrome ... β€’ Cushing's Syndrome ... Obesity β€’ Liver Disease ... Paraneoplastic Syndrome ... endocrinology #causes
Etiologies of Peripheral Neuropathy
 β€’ Metabolic / Nutritional: DiabetesB12 deficiency, Uremia/ESRD, Hypothyroidism
 β€’ Medication-induced: ART, Antibiotics,
Syphilis, Lyme disease ... Paraprotein-associated (POEMS syndrome ... Charcot-Marie-Tooth, Fabry's disease ... differential #diagnosis #causes
Causes of Hypocomplementemia - CHAMPS Mnemonic
C - Cryoglobulinemia (85%), C3 glomerulopathy, cirrhosis
H - Heavy Chain deposition
Causes of Hypocomplementemia ... Chain deposition disease ... antiphospholipid syndrome
What the Color of Urine Can Tell You - Differential Diagnosis by Urine Color
Clear: excess water
Pale
: rare genetic disease ... (Purple Urine Syndrome ... differential #diagnosis #causes
Acid Base Disorders - Blood Gas Interpretation

Steps for Blood Gas Interpretation: 
1. Acidemia or Alkalemia? 
2.
D-lactate (short bowel syndrome ... starvation, diabetic) Causes ... Acetazolamide Causes ... - Salicylates Causes ... restrictive lung disease
Blood Culture-Negative Infective Endocarditis (BCNIE)
Definition: No etiology found after 3 separate blood cultures remain negative for
but important causes ... antiphospholipid syndrome ... exists Infectious Diseases
Workup of Hypercalcemia - Differential Diagnosis Algorithm
High or Normal PTH:
 β€’ Hyperparathyroidism: Parathyroid adenoma, Parathyroid hyperplasia,
Skeletal metastatic disease ... , Milk Alkali Syndrome ... disorders, Paget's disease ... , Viral Syndromes ... Granulomatous diseases
Nephritic vs Nephrotic Syndrome

Step 1: If the patient has hematuria and/or proteinuria, think about nephrotic/nephritic syndromes.
Step
Nephritic vs Nephrotic Syndrome ... nephrotic/nephritic syndromes ... hematuria (RBC casts ... Nephritic #Nephrotic #Syndrome