The most common anterior mediastinal tumor is:
Cystic lesions
Neurogenic tumor
Bronchogenic cyst
Thymoma
Which of the following condition is associated with thymoma?
Myasthenia gravis
Rheumatoid arthritis
Scleroderma
Renal failure
Which of the following is not associated with thymoma:
Red cell aplasia
Myasthenia gravis
Hypergammaglobulinemia
Compression of the superior mediastinum
A 31 year old HIV- positive man develops a severe pneumonia. Lower respiratory tract secretions obtained by fiberoptic bronchoscopy with bronchoalveolar lavage and stained with methenamine silver stain demonstrate cup- shaped cysts with sharply outlined walls. Which of the following organisms is the most likely pathogen in this case?
Candida albicans
Giardia lamblia
Haemophilus influenzae
Pneumocystis carinii
All of the following statements about Pneumocystis Jiroveci are true, EXCEPT:
Usually associated with CMV infection
May be associated with Pneumatocele
Usually diagnosed by sputum examination
Causes disease only in the immunocompromised host
WHO stage IV HIV includes all, EXCEPT:
Toxoplasmosis
Pneumocystis carinii
HIV wasting syndrome
Oral thrush