LONDON: Former prime minister Nawaz Sharif's wife Begum Kulsoom Nawaz was brought to the hospital for medical tests on Friday after her third chemotherapy session, said her daughter Maryam Nawaz on social media. 

Kulsoom is undergoing chemotherapy in London after being diagnosed with lymphoma ? a cancer of the lymph nodes. 

Maryam said her mother was taken to the hospital for a CT and Gallium scan after her third chemotherapy session. 

The scans were conducted to assess the response to the treatment. 

Nawaz is in London after the court had exempted him for a short duration from appearing in the hearings held for the NAB references registered against him. 

Kulsoom has so far had three surgeries as part of her throat cancer treatment in London.

Although she contested and won the NA-120 seat, she had left for medical treatment before the by-poll, with her daughter Maryam campaigning on her behalf. 

The accountability court hearing three corruption references against Nawaz had earlier approved his exemption from appearance plea.

The former premier had asked the court for a change in the dates of his exemption from appearance. Nawaz now is exempted from appearing in court from December 5 till 12.