Clinical scenario: Cough | fast breathing | Clarified butter ingestion
A 10-month-old infant presents with persistent cough and fast breathing for 2 weeks. There is no history of choking episode. The grandmother reports giving the child desi ghee (clarified butter) orally several times daily for cough. Examination reveals mild respiratory distress with crackles over the right lower zone. Chest X-ray shows persistent patchy consolidation despite a course of antibiotics.
What is the most likely diagnosis?
A. Bacterial pneumonia
B. Aspiration lipoid pneumonia
C. Bronchiolitis
D. Cystic fibrosis
E. Foreign body aspiration
Correct answer & Explanation:
Correct answer: B. Aspiration lipoid pneumonia
Explanation:
Lipoid pneumonia occurs when oily substances (animal, vegetable, or mineral oils) enter the lungs through aspiration. In children, it can occur after administration of ghee, oil-based traditional remedies, or herbal preparations, especially in infants who have immature swallowing coordination.
Key features:
- Chronic cough and respiratory symptoms
- May have fever and tachypnea
- Often mimics recurrent pneumonia
- CT chest may show fat-density areas within consolidation
- Diagnosis is confirmed by bronchoalveolar lavage showing lipid-laden macrophages
Why other options are incorrect:
- A. Bacterial pneumonia: usually acute with higher fever and typical infectious pattern; fat-density consolidation suggests lipoid pneumonia.
- C. Pulmonary tuberculosis: chronic cough but not associated with fat deposition on CT.
- D. Foreign body aspiration: usually sudden onset cough/wheeze and focal air trapping.
- E. Hypersensitivity pneumonitis: occurs due to immune reaction to inhaled antigens, not oil aspiration.
Learning point: Avoid giving oil-based substances (including ghee) orally to infants for cough or colds because aspiration can lead to lipoid pneumonia.
