Differential Diagnosis for High Eosinophil Count
Single Most Likely Diagnosis
- Asthma or Allergic Reaction: A high eosinophil count is often seen in asthma or allergic reactions, as eosinophils play a key role in the body's response to allergens.
Other Likely Diagnoses
- Parasitic Infections: Eosinophilia is a common response to parasitic infections, such as hookworm, roundworm, or tapeworm infestations.
- Atopic Dermatitis: This skin condition is characterized by inflammation and itching, and is often associated with elevated eosinophil counts.
- Drug Reactions: Certain medications, such as antibiotics or anti-inflammatory drugs, can cause an increase in eosinophil count as a side effect.
Do Not Miss Diagnoses
- Hypereosinophilic Syndrome (HES): A rare but potentially life-threatening condition characterized by extremely high eosinophil counts, which can lead to organ damage if left untreated.
- Churg-Strauss Syndrome: A rare autoimmune disorder that can cause eosinophilia, asthma, and vasculitis, and can be fatal if not promptly treated.
- Lymphoma or Leukemia: Certain types of cancer, such as lymphoma or leukemia, can cause an increase in eosinophil count, and early diagnosis is crucial for effective treatment.
Rare Diagnoses
- Tropical Pulmonary Eosinophilia: A rare condition caused by a parasitic infection, characterized by eosinophilia and respiratory symptoms.
- Eosinophilic Gastroenteritis: A rare condition characterized by eosinophilia and inflammation of the gastrointestinal tract.
- Loeffler's Syndrome: A rare condition characterized by eosinophilia and pulmonary infiltrates, often caused by a parasitic infection or drug reaction.