Case contributed by Assoc Prof Frank Gaillard


Presentation withheld.

Patient Data

Age: 35 years
Gender: Female

CT demonstrates a well circumscribed soft tissue mass in the anterior mediastinum. 

Case Discussion

This young woman clinically demonstrated features of myasthenia gravis was shown to have an anterior mediastinal mass, presumably a thymoma. It was surgically excised and confirmed to be a thymoma, type B2 (cortical).

Five thymoma subtypes can be associated with myasthenia gravis: 

  1. type A (medullary)
  2. type AB (mixed)
  3. type B1 (organoid)
  4. type B2 (cortical)
  5. type B3 (well-differentiated thymic carcinoma)

Types AB, B2, and B3 thymomas are by far the most frequent subtypes and the most frequently associated with myasthenia gravis 1.  

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Case information

rID: 14630
Published: 13th Aug 2011
Last edited: 25th May 2020
System: Chest
Inclusion in quiz mode: Included

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