6873 results
Causes of Hypercalcemia
Hypercalcemia due to increased bone Ca2+ resorption:
 • Primary hyperparathyroidism, Malignancy, Pseudohyperparathyroidism, Renal failure,
Causes of Hypercalcemia ... coccidioidomycosis, histoplasmosis ... Hypercalcemia #Causes ... #differential #diagnosis
Reversed Halo Sign - Infectious and Non-Infectious Differential Diagnosis
Definition: A focal rounded area of GGO surrounded
Non-Infectious Differential Diagnosis ... • Infectious Causes ... Paracoccidioidomycosis, Histoplasmosis ... Non-Infectious Causes ... #Differential #Diagnosis
Causes of Culture Negative Abscess - Differential Diagnosis Framework
Consider prior antibiotics as a cause of a
Causes of Culture ... - Differential Diagnosis ... antibiotics as a cause ... : Aspergillus, histoplasmosis ... #Differential #Diagnosis
Causes of Hypercalcemia due to increased Vitamin D levels
 • The BIG 3:
Causes of Hypercalcemia ... Pneumocystis jiroveci, Histoplasmosis ... Hypercalcemia #VitaminD #causes ... #differential #diagnosis
Monoarthritis - Differential Diagnosis
Infection (Acute):
 - S. aureus (most common)
 - S. pneumonia
 - Salmonella (in
- Differential Diagnosis ... disease Fungal: - Histoplasmosis ... #Differential #Diagnosis ... #Causes #Schema
Causes of Superior Vena Cava (SVC) Syndrome 
Malignant Causes (2/3 of cases)
 - 95%
Causes of Superior ... Non-Malignant Causes ... - Histoplasmosis ... SuperiorVenaCava #Syndrome #Causes ... #Differential #diagnosis
Skin Ulcers by Etiology - Differential Diagnosis Algorithm
Physical:
 • Trauma
 • Pressure
 • Radiation
Vascular:
 • Arterial
- Differential Diagnosis ... Fungal • Histoplasmosis ... #Differential #Diagnosis ... #Algorithm #causes
Causes of Erythema Nodosum
Common
 - Idiopathic (up to 55 percent)
 - Infections: streptococcal pharyngitis (28 to
Causes of Erythema ... mycoplasma, chlamydia, histoplasmosis ... Erythema #Nodosum #Causes ... #Differential #Diagnosis
Adrenal Insufficiency - Diagnosis and Management Summary
Primary Adrenal Insufficiency:
Most Common Cause in the US: Autoimmune Adrenalitis
Other
Insufficiency - Diagnosis ... : Most Common Cause ... Adrenalitis Other causes ... Causes of Secondary ... tumor, TB and histoplasmosis
CNS Ring-Enhancing Lesions - Immunocompromised vs Immunocompetent
Multiple Ring-Enhancing Lesions:
 • Toxoplasmosis (CD4 < 100)
 • Other
Chorioretinitis • Diagnosis ... M, avium, TB, histoplasmosis ... #differential #diagnosis ... #causes #radiology