Test on Pulmonary Granulomatous Diseases

Question 1: Most patients diagnosed with Histiocytosis X are non-cigarette smokers.

A. Ano

B. Ne

Explanation: The study materials indicate that most patients (90%) with Histiocytosis X are cigarette smokers.

Question 2: Spontaneous pneumothorax is not listed as a possible manifestation of Histiocytosis X in the provided information.

A. Ano

B. Ne

Explanation: The study materials explicitly state that spontaneous pneumothorax is among the possible manifestations of Histiocytosis X.

Question 3: According to the study materials, what is typically observed on a CT scan in patients with Histiocytosis X?

A. A honeycomb appearance

B. Lytic bone lesions

C. Cystic lesions

D. Abnormal proliferation of histiocytes

Explanation: The study materials explicitly state that 'CT scan shows cystic lesions' for Histiocytosis X. A honeycomb appearance is noted for CXR, and lytic bone lesions are other possible manifestations, not a direct CT finding of the lung disease itself. Abnormal proliferation of histiocytes describes the cause, not an imaging finding.

Question 4: Based on the provided study materials, which description accurately applies to Letterer–Siwe disease?

A. It is a localized variant of Histiocytosis X.

B. It is one of two systemic forms of Histiocytosis X.

C. It is characterized by a honeycomb appearance on CXR.

D. It is typically resolved with corticosteroids as the primary treatment.

Explanation: The study materials state that "Variants of disease include eosinophilic granuloma (localized to bone or lung), and two systemic forms—Letterer–Siwe disease and Hand–Schüller–Christian syndrome." This indicates that Letterer–Siwe disease is one of the two systemic forms of Histiocytosis X.

Question 5: Churg-Strauss syndrome typically occurs in individuals without a history of asthma.

A. Ano

B. Ne

Explanation: Churg-Strauss syndrome is described as a granulomatous vasculitis seen in patients with asthma, indicating a strong link to a history of asthma.