Differential Diagnosis for a 28-year-old Pregnant Female
Single Most Likely Diagnosis
- Intrahepatic Cholestasis of Pregnancy (ICP): This condition is characterized by itching (pruritus) and elevated liver enzymes, often presenting in the second or third trimester of pregnancy. The patient's symptoms of itching and elevated CRP, in the absence of other clear causes, make ICP a strong consideration.
Other Likely Diagnoses
- Urinary Tract Infection (UTI): Although the urine test is reported as normal, UTIs can sometimes present with minimal or no abnormalities on urinalysis, especially in pregnant women. The elevated WBC count could suggest an infection.
- Pregnancy-related Hyperreactivity or Inflammation: Pregnancy itself can cause an increase in inflammatory markers like CRP and WBC due to the body's immune response to the fetus. However, the presence of itching suggests there might be a more specific cause.
- Viral Hepatitis: Although less common, viral hepatitis could cause elevated liver enzymes and inflammation, leading to symptoms like itching. However, this would typically be accompanied by other symptoms like jaundice.
Do Not Miss Diagnoses
- Preeclampsia: This condition can present with non-specific symptoms and is a major cause of maternal and fetal morbidity. Although classically associated with hypertension and proteinuria, atypical presentations can occur, and the elevated CRP and WBC could be indicative of an inflammatory response.
- Acute Fatty Liver of Pregnancy (AFLP): A rare but serious condition that can present with non-specific symptoms including itching, AFLP requires prompt diagnosis and treatment to prevent severe outcomes.
- HELLP Syndrome: A variant of preeclampsia, characterized by Hemolysis, Elevated Liver enzymes, and Low Platelet count. It can present with non-specific symptoms and is critical to diagnose early due to its high morbidity and mortality.
Rare Diagnoses
- Primary Biliary Cholangitis (PBC): An autoimmune disease of the liver that can cause itching and elevated liver enzymes. It's less likely in this context due to the patient's age and the specific scenario of pregnancy.
- Other Autoimmune Hepatitis: Conditions like autoimmune hepatitis could present with similar symptoms but are less common and would typically have other distinguishing features.
- Drug-induced Liver Injury: Although possible, this would depend on the patient's medication history, which is not provided.