433 results
Esophageal Necrosis
Etiology:
 - Ischemia and Gastric Outlet Obstruction with GERD may be inciting events
 - Associated
DKA, Underlying malignancy ... hematemesis and/or melena
Upper Gastronintestinal Bleed - Differential Diagnosis Algorithm
Acute Hematemesis/Melena
 - Blood in vomitus?/black, tarry stools
 - If
Acute Hematemesis/Melena ... stools - If Melena ... #Hematemesis #Melena
Dyspnea - Considerations with Malignancy
Directly Malignancy Related:
 - Lymphangitic spread to lung
 - Malignant pleural effusion
Considerations with Malignancy ... Directly Malignancy ... spread to lung - Malignant ... pleural effusion - Malignant ... Therapy-related malignancy
Black and Bloody Stools - Melena and Hematochezia
Melena - Refers to passage of black, tarry (sticky
Bloody Stools - Melena ... and Hematochezia Melena ... In infants, melena ... #Melena #Hematochezia
Hypokalemia - Differential Diagnosis Algorithm
Extra-renal Losses:
 • Normal Acid-Base: Low intake
 • Metabolic acidosis: Gl tract
High Aldosterone: Malignant ... anions Dr Priti Meena
Presentation of malignant disease in children 
Pre-school (<5 years old) 
 - Acute lymphoblastic leukaemia
Presentation of malignant ... Hodgkin lymphoma - Malignant ... tissue sarcomas #Malignancy ... #Presentation #Malignant
Size
A solitary pulmonary nodule (SPN) is defined as a single intraparenchymal lesion less than 3 cm
cm are usually malignant ... either benign or malignant ... the chance of malignancy ... size, none was malignant ... MalignancyRisk #Malignancy
Helpful Clues for Distinguishing Upper vs. Lower GI Bleeding
Upper GI Bleed (proximal to ligament of Treitz):
hematemesis and/or melena ... Can present with melena
Cough - Diagnostic Schema

Infectious: URTI, LRTI, Bacterial, Viral
Irritant/Exposure: Allergic, Post-infectious, Pneumonitis, ACEi, PTX, Foreign Body
Airway Disease:
Vasculitis, ILD Malignancy ... Metastatic Dz, Malignant
Causes of Thrombocytosis - Differential Diagnosis Algorithm
Spurious:
 • Artifact (redo CBC)
Autonomous:
 • Essential thrombocytosis
 • Polycythemia
• Burns Non malignant ... Non-hematologic malignancy