A 5 year-old girl with common cold consulted a pediatric physician. On her CXR bilateral reticulonodular opacities were noted (Figure 1). She was treated with the diagnosis of pneumonia. She came back after 6 months for further evaluation but there was no change on her CXR. She was referred to a university hospital because of abnormal CXR. During this period she only had loss of appetite. On her physical examination: there was no evidence of clubbing or cyanosis in extremities and no hepatosplenomegaly. On auscultation bilateral fine crackles were present. She was diagnosed and treated for TB in the hospital with no evidence of improvement.
Her family history was negative for TB and alveolar microlithiasis.
 Vital Signs: RR: 20 PR:100 T:37 C BP:95/65 mmHg