12 results
Chronic Abdominal Pain Causes - Differential Diagnosis Framework

Many patients with chronic abdominal pain have had prior
have had prior evaluations ... Red Flags: • Fever ... • Vomiting, diarrhea ... bowel syndrome • Celiac ... poisoning • Celiac
Chronic Diarrhea - Workup
Osmotic:
 • Consider food diary and trial avoiding certain foods or meds, Consider
Chronic Diarrhea ... certain foods or meds ... colonoscopy), Abdominal ... disease Inflammatory ... differential #testing #evaluation
Cold Urticaria
Prevalence - 0.05% in the population
Disease onset - Mostly 2nd to 4th decades of life
Causes
decades of life Causes ... symptoms - Headache, fever ... , abdominal pain ... , diarrhea, Tachycardia ... Urticaria #diagnosis #rheumatology
Renal Cell Carcinoma (RCC) - Diagnosis and Management Summary
Clinical features - Classic triad (flank pain, hematuria,
Diagnosis and Management ... and a palpable abdominal ... flank pain (CLOT COLIC ... night sweats, fever ... with contrast Evaluation
Kawasaki Disease (KD) - Diagnosis and Management Summary

Kawasaki Disease (KD) is the most common vasculitis of
Presentation: • Fever ... , Cough • +/-Nausea ... , vomiting, diarrhea ... Diagnostic Criteria - Fever ... KD #vasculitis #rheumatology
Irritable Bowel Syndrome (IBS) - Diagnosis and Workup Summary
Use a positive diagnostic strategy with minimal testing.
Criteria - Recurrent abdominal ... missing things" → fewer ... • If Diarrhea: ... - Rule out celiac ... disease w/ T TG
Hemophagocytic Lymphohistiocytosis (HLH)
Pathophysiology: Triggering factor (infection,...)→Activation of CD8 T cells (IFN-y) → Excessive activation of macrophages
• Clinical: fever ... • Autoimmune diseases ... Adult-onset Still disease ... inhibitors under evaluation ... Lymphohistiocytosis #diagnosis #management
Vitamin B12 (Cobalamin) Deficiency
Etiology:
 • Vit B12 - aka cobalamin. Present in foods derived from animal
• Common Causes ... tongue), abd pain, diarrhea ... related to IBD, celiac ... disease, other ... total body stores Evaluation
Nontuberculous Mycobacteria (NTM) Infections 

Mycobacterial species other than those belonging to the Mycobacterium tuberculosis complex and
status NTM Cause ... Hematologic malignancy ... Presentation: Fever ... liver enzymes, diarrhea ... , abdominal pain
Blood Transfusion Reactions

Immune Mediated:
 • Febrile Non-Hemolytic Transfusion Reaction (FNHTR): Most common immune reaction to transfusion.
S/sx: Fever, flank ... Causes purpura & ... cutaneous eruptions, diarrhea ... Transfusion #diagnosis #management ... #hematology #reactions