Primary mediastinal cystic hygroma.
D006801:Humans; D008202:Lymphangioma; D018191:Lymphangioma, Cystic; D008479:Mediastinal Neoplasms; D014376:Tuberculosis; D014397:Tuberculosis, Pulmonary / Q000175:diagnosis*
LYMPHANGIOMA; TUBERCULOSIS, PULMONARY/diagnosis