Patient Testimony – CyberKnife

Mr Khor Kar Keng

In 2005, Mr Khor was diagnosed with Pituitary Tumour. The surgery has caused some damage to the normal parts of his pituitary gland and the gland lost its ability to produce certain hormones. His is now on lifelong hormone replacement therapy.

Complete removal of a tumour is the desired goal. However, a minority of patients with pituitary tumour will have a recurrence of the tumour. Mr Khor is one of them. In 2018, he experienced double vision. He found that his tumour has grown back to its original size. Not only that, it has also shifted towards the right side, pressing against his optic nerve and affected the alignment of his right eye.

The tumour was located in the place which is just too risky to operate on. If conventional surgery is performed, there is a risk of him getting stroke.

On 14 February 2019, Mr Khor had five (5) fractions of radiation using the CyberKnife.

Why CyberKnife:

CyberKnife is an efficient treatment modality for the patients of pituitary adenoma with negligible peril. CyberKnife can provide more precise targeting of the adenoma and minimalise the dose of radiation received by adjacent structures, such as the pituitary stalk, pituitary gland, optic chiasm and cranial nerves in the cavernous sinus.

Mr Khor’s condition after the treatment:

His double vision went away right after he completed his treatment on 20 February 2019. 7 months later, his MRI scan showed that his tumour is reduced in size and it is stable now. He does not experience any side effect.