This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Surgery
Thymus gland abscess seen in congenital syphilis is called as 
Select and explain. 
A. Fouchier’s abscess, B. Politzeri abscess, C. Douglas abscess, D. Dubois' abscess
D: Dubois' abscess
Answer: D: Dubois' abscess 
Explanation: Abscesses of the thymus gland were first described by Dubois in 1850 as a product of congenital syphilis. Chiari believed that the Dubois abscess was a cyst formed by the thymus tissue invading Hassall's corpuscles, the result of pronounced syphilitic changes.
Key Concept:
An abscess of the thymus (also known as "Dubois' abscess") is a condition that is one of many possible causes of cysts in the mediastinum. It can present with chest pain behind the sternum. It can be associated with congenital syphilis.