Description of Specimen
The specimen is a nodular mass in which there are a number of minute cysts and an extensive area
of haemorrhage. The outer surface is nodular.
History
This woman presented at the age of 41 with a three-month history of periodic recurring
pain across the shoulders and upper limbs with weakness. Some two months before presentation
she noticed slurring of the speech which improved after rest. Over the few days prior to
presentation she had some difficulty in swallowing and difficulty in sitting up easily. The Tensilon
test was positive and on the basis of this and the other findings a diagnosis of myasthenia gravis
was made. Subsequently the thymic mass was resected.