13 results
Allopecia - Differential Diagnosis Framework for Hair Loss

Localized / Focal Hair Loss Pattern:
 • Scarring Alopecia:
Capitis - Skin Disease ... of any comorbid disease ... Scaling, pustules, crusts ... • Laboratory evaluation ... #Diagnosis #dermatology
Causes of Iron Deficiency
 • Inadequate Intake: Vegetarian/vegan diet, Malnutrition
 • Increased Body Needs: Infants/preschoolers, Pregnancy,
Causes of Iron Deficiency ... Chronic Blood Loss ... Bleeding, Edema, Celiac ... Disease (IBD, cancer ... ) #Iron #Deficiency
Iron Deficiency Anemia - Differential Diagnosis Algorithm

Labs: Ferritin, iron, transferrin, TIBC, TSAT, sTfR

 • Blood loss:
Iron Deficiency ... sTfR • Blood loss ... loss: Intravascular ... - Structural: Celiac ... disease, Tropical
Causes of Iron Deficiency
 • Diet: ↓ Intake, e.g. vegan, Malnutrition, Polyphenol / tannins, ↓ Vitamin
Causes of Iron Deficiency ... Drugs, H pylori, Celiac ... Athletes • Blood Loss ... : IBD, Chronic disease ... #Deficiency #Causes
Hair Loss (Alopecia) - General (Diffuse and Focal) Differential Diagnosis Algorithm

DIFFUSE
Scarring - Irreversible-biopsy required
 • Lupus
Hair Loss (Alopecia ... Dietary • Iron ... Secondary to Skin Disease ... #dermatology #Differential ... Diagnosis #Algorithm #causes
Causes of Iron Deficiency - Differential Diagnosis Algorithm
 • Blood loss: GI (cancer, ulcer, IBD), GU
Causes of Iron Deficiency ... Chronic kidney disease ... of absorption): Celiac ... disease, Bypass ... #Diagnosis #Causes
Causes of Thrombocytosis - Differential Diagnosis Algorithm
Spurious:
 • Artifact (redo CBC)
Autonomous:
 • Essential thrombocytosis
 • Polycythemia
disorders • Celiac ... disease Tissue ... malignancy • Iron ... deficiency anemia ... #Hematology
Causes of Copper Deficiency - Differential Diagnosis
Hereditary: 
 - Menkes disease, familial hypoceruloplasminemia
Decreased / Inadequate Intake:
Causes of Copper ... Deficiency - Differential ... Increased copper loss ... , Celiac sprue, ... supplementation) or iron
Diffuse Hair Loss (Alopecia) - Differential Diagnosis Algorithm

Scarring - Irreversible-biopsy required
 • Lupus erythematosus
 • Lichen
Diffuse Hair Loss ... Dietary • Iron ... deficiency ... #dermatology #Differential ... Diagnosis #Algorithm #causes
Overall Approach to Anemia - Differential Diagnosis Algorithm

Blood Loss
 • Acute Bleed - Normocytic / Normochromic
Algorithm Blood Loss ... Deficiency • ... Anemia of Chronic Disease ... Diagnosis #Algorithm #Causes ... #Hematology