“…Generally, it is well encapsulated, lobulated, and does not infiltrate adjacent structures. Although many authors have reported that it is not a very symptomatic neoplasm, there have been studies where more than 50 % of patients presented with symptoms [5], the most frequently reported being shortness of breath, chest pain, upper respiratory infections and chest heaviness. It is associated with myasthenia gravis in 10% of cases, as well as with aplastic anemia, Graves' disease, lymphangioma, chronic lymphatic leukemia, Hodgkin's disease, erythematous systemic lupus, hypogammaglobulinemia Fig.…”