KARACHI - Former military dictator General Pervez Musharraf has been advised to undergo an angiography soon by doctors who examined him at his residence on Sunday.
Musharraf, 70, arrived here amidst tight security on Saturday night from Islamabad and is expected to stay in the city for a week. 
A source in his party, the All Pakistan Muslim League (APML), claimed that Musharraf had been examined after complaining of a persistent back pain. 
"The doctors visited him at his residence today (Sunday)," the source claimed.
"Arrangements have been made to have his backbone tests at the PNS Shifa Hospital in a special ward later tonight (Sunday night)," a source, who declined to be named, claimed.  He said the three-member team of doctors also advised him to undergo an angiography after examining his earlier medical reports.
Musharraf, earlier in the day, was slated to go to the PNS Shifa, a navy hospital here, for his check-up but apparently the plan was changed due to security reasons.
There was a heavy security presence at his residence on Sunday in in Zamzama area.
Lawyers of the former president may also file an application in the Sindh High Court seeking removal of Musharraf's name from the exit control list (ECL) so that he could travel abroad.  The source said Musharraf decided to come to Karachi due to security issues at his Chak Shahzad farmhouse in Islamabad as well as medical reasons.
The former president was admitted to the AFIC on January 2 when he complained of heart problems on his way to a special court set up for his high treason trial for abrogating the constitution and detaining judges in 2007.
Musharraf, last year, returned to Pakistan from exile before the May general elections and since then he has been based in either Rawalpindi or Islamabad.