title: Nontuberculous mycobacterial infection in an infant with a mediastinal mass.
mesh_terms: D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D007108:Immune Tolerance; D007223:Infant; D008199:Lymphadenitis / Q000175:diagnosis*; D008479:Mediastinal Neoplasms / Q000175:diagnosis*; D009164:Mycobacterium Infections / Q000175:diagnosis*; D009165:Mycobacterium Infections, Nontuberculous / Q000175:diagnosis*; D012882:Skin Tests