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Diagnostic Schema for Hyperferritinemia

Pearl: Diseases associated with extreme elevations: 
1. HLH 
2. Still's disease 
3. Systemic
Systemic histoplasmosis ... Hyperferritinemia #Algorithm #Differential
Monoarthritis - Differential Diagnosis
Infection (Acute):
 - S. aureus (most common)
 - S. pneumonia
 - Salmonella (in
Monoarthritis - Differential ... disease Fungal: - Histoplasmosis ... Monoarthritis #Differential
Reversed Halo Sign - Infectious and Non-Infectious Differential Diagnosis
Definition: A focal rounded area of GGO surrounded
Non-Infectious Differential ... Paracoccidioidomycosis, Histoplasmosis ... NonInfectious #Differential
Causes of Hypercalcemia
Hypercalcemia due to increased bone Ca2+ resorption:
 • Primary hyperparathyroidism, Malignancy, Pseudohyperparathyroidism, Renal failure,
coccidioidomycosis, histoplasmosis ... Hypercalcemia #Causes #differential
Causes of Culture Negative Abscess - Differential Diagnosis Framework
Consider prior antibiotics as a cause of a
Negative Abscess - Differential ... : Aspergillus, histoplasmosis ... Mucormycosis, histoplasmosis ... Negative #Abscess #Differential
Skin Ulcers by Etiology - Differential Diagnosis Algorithm
Physical:
 • Trauma
 • Pressure
 • Radiation
Vascular:
 • Arterial
by Etiology - Differential ... Fungal • Histoplasmosis ... #dermatology #Differential
Causes of Hypercalcemia due to increased Vitamin D levels
 • The BIG 3:
Pneumocystis jiroveci, Histoplasmosis ... VitaminD #causes #differential
MIAMI Mnemonic for Differential Diagnosis of Lymphadenopathy
Malignancies
 - Kaposi sarcoma, leukemias, lymphomas, metastases, skin neoplasms
Infections
 -
MIAMI Mnemonic for Differential ... cryptococcosis, histoplasmosis ... MIAMI #Mnemonic #Differential
Non-Resolving Pneumonias: Etiologies
Unusual Infections:
 - Immunocompromised patients (e.g.: Mycobacterium, Aspergillosis, Nocardia)
 - Endemic Fungi (e.g.: Histoplasmosis,
.: Histoplasmosis ... diagnosis #pulmonary #differential
Oral histoplasmosis in a transplant patient
50 F Midwest hx liver transplant on prednisone MMF fever, sweats,
Oral histoplasmosis ... Oral histoplasmosis ... may not Other differentials ... IUIDfellowship #Oral #histoplasmosis