After postponing a handful of dates last week in order for guitarist Eddie Van Halen to undergo tests for an unspecified medical condition, Van Halen is postponing all tour activity until April 19th.

Seventeen shows are/were affected, beginning March 11th in Charlottesville and running through April 15th in Baltimore.

According to organizers, Van Halen, who has battled cancer and substance abuse, "is currently under doctors' care" and will "continue medical tests to define a course of treatment." No further details were made available.

Van Halen returned to the road last fall with original lead singer David Lee Roth for the first time in 20-plus years. The tour, which features Eddie Van Halen's teenage son Wolfgang on bass, has routinely sold out North American arenas.

The new dates kick off with the band's performance at Tiger Wood's charity event, Tiger Jam XI, in Las Vegas, on April 19th and run through Monday, June 2nd when the band plays Van Andel Arena in Grand Rapids.

Tickets for the band's previously scheduled dates will be honored. Refunds are also available at the point of purchase.

The new dates are:

• April 19th, Mandalay Bay Events Center, Las Vegas (Tiger Jam)
• April 22nd, U.S. Bank Arena, Cincinnati
• April 24th, American Airlines Center, Dallas
• April 26th, Scottrade Center, St Louis
• April 28th, Bradley Center, Milwaukee
• April 30th, Mellon Arena, Pittsburgh
• May 2nd, John Paul Jones Arena, Charlottesville
• May 5th, RBC Center, Raleigh
• May 7th, Schottenstein Center, Columbus
• May 9th, Boardwalk Hall, Atlantic City
• May 11th, Gwinnett Arena, Duluth
• May 13th, Izod Center, East Rutherford
• May 15th, 1st Mariner Arena, Baltimore
• May 18th, Giant Center, Hershey
• May 20th, Mohegan Sun Arena, Uncasville
• May 23rd, Madison Square Garden, New York
• May 25th, Dunkin Donuts Center, Providence
• May 28th, Verizon Wireless Arena, Manchester
• May 30th, Allstate Arena, Chicago
• June 2nd, Van Andel Arena, Grand Rapids, MI