87 results
Malignant Bone Tumors: Pathogenesis of X-ray appearance

 • Metastatic bone tumors (aka. cancerous cells from systemic
appearance • Metastatic ... • Metastatic ... the source of metastasis ... bone) - these cancer ... . thvroid. and renal
Back Pain - Differential Diagnosis
Primary Back Pathology:
 • Musculoligamentous injury (a.k.a. lumbosacral strain)
 • Spondylosis (i.e.
Back Pain - Differential ... Primary Back Pathology ... compression fracture, Pathologic ... fracture secondary to metastatic ... breast, prostate, renal
Cavitary Lung Disease - Differential Diagnosis and Workup Algorithm
Acute / Subacute:
 • Acute Infections: Lung abscess,
Lung Disease - Differential ... : Primary lung cancer ... , Metastatic lung ... lesion #pulmonary #differential
Hypercalcemia of Malignancy - Pathophysiology
PTH-mediated
 • Parathyroid cancer
 • Ectopic production: Small cell lung cancer, ovarian
• Parathyroid cancer ... , ovarian cancer ... D - Increased renal ... Cell of lung, Renal ... Pathophysiology #Differential
Causes of Acute Kidney Injury ( AKI ) - Prerenal, Renal, and Postrenal

PRE-RENAL 
Impaired perfusion: 
•
) - Prerenal, Renal ... Postrenal PRE-RENAL ... enlargement Prostate cancer ... Cervical cancer ... Postrenal #Failure #Differential
Causes of Chronic Kidney Disease - Differential Diagnosis Algorithm
Decreased kidney function (eGFR < 60 ml/min/1.73 m2)
Kidney Disease - Differential ... 3 months Pre-Renal ... Constipation • Prostate cancer ... Family history, ultrasound ... KidneyDisease #Nephrology #Differential
Differential Diagnosis for Generalized Lymphadenopathy

Viral
• HIV 
• EBV 
• CMV 
• HBV 
• Dengue 
• Rubella
Differential Diagnosis ... • Leukemia • Metastatic ... cancer Other ... Lymphadenopathy #Differential
Causes of Pericardial Effusion - Differential Diagnosis
Infectious:
 • Viral: Enterovirus, Herpesvirus, Adenovirus, Parvovirus
 • Bacterial: Mycobacterium
Pericardial Effusion - Differential ... • Malignant - Metastatic ... : Lung Cancer, Breast ... Cancer, Melanoma ... Pericardial #Effusion #Differential
Causes of SVC Syndrome - Differential Diagnosis Framework
 • Benign (15-40%): Thrombosis (aka catheter-associated), Goiter, Fibrosing
SVC Syndrome - Differential ... Tumors, Thyroid Cancers ... , Metastatic Disease ... SVC #Syndrome #Differential
Cough - Diagnostic Schema

Infectious: URTI, LRTI, Bacterial, Viral
Irritant/Exposure: Allergic, Post-infectious, Pneumonitis, ACEi, PTX, Foreign Body
Airway Disease:
Malignancy: Lung Cancer ... Mesothelioma, Metastatic ... Acute #Chronic #Differential