VARIAN MEDICAL SYSTEMS INC - FORM 10-Q - EX-15.1 - LETTER REGARDING UNAUDITED INTERIM FINANCIAL INFORMATION - May 11, 2010

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10-Q - FORM 10-Q - VARIAN MEDICAL SYSTEMS INCd10q.htm
EX-31.1 - CHIEF EXECUTIVE OFFICER CERTIFICATION PURSUANT TO RULE 13A-14(A) - VARIAN MEDICAL SYSTEMS INCdex311.htm
EX-10.6 - FORM OF REGISTRANT'S CHANGE IN CONTROL AGRMNT FOR SENIOR EXECS (OTHER THAN...... - VARIAN MEDICAL SYSTEMS INCdex106.htm
EX-10.3 - FORM OF REGISTRANT'S RESTRICTED STOCK UNIT AGREEMENT - VARIAN MEDICAL SYSTEMS INCdex103.htm
EX-10.1 - REGISTRANT'S 2010 EMPLOYEE STOCK PURCHASE PLAN - VARIAN MEDICAL SYSTEMS INCdex101.htm
EX-31.2 - CHIEF FINANCIAL OFFICER CERTIFICATION PURSUANT TO RULE 13A-14(A) - VARIAN MEDICAL SYSTEMS INCdex312.htm
EX-32.2 - CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350 - VARIAN MEDICAL SYSTEMS INCdex322.htm
EX-10.5 - FORM OF REGISTRANT'S CHANGE IN CONTROL AGRMNT FOR SENIOR EXECUTIVES (CFO & GC) - VARIAN MEDICAL SYSTEMS INCdex105.htm
EX-10.4 - FORM OF REGISTRANT'S CHANGE IN CONTROL AGREEMENT FOR CHIEF EXECUTIVE OFFICER - VARIAN MEDICAL SYSTEMS INCdex104.htm
EX-32.1 - CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350 - VARIAN MEDICAL SYSTEMS INCdex321.htm
EX-10.2 - AMDMNT NO. 4 TO REGISTRANT'S SECOND AMENDED AND RESTATED 2005 OMNIBUS STOCK PLAN - VARIAN MEDICAL SYSTEMS INCdex102.htm
EX-10.7 - FORM OF REGISTRANT'S CHANGE IN CONTROL AGREEMENT FOR KEY EMPLOYEES - VARIAN MEDICAL SYSTEMS INCdex107.htm
EXCEL - IDEA: XBRL DOCUMENT - VARIAN MEDICAL SYSTEMS INCFinancial_Report.xls

Exhibit 15.1

May 11, 2010

Securities and Exchange Commission

100 F Street, N.E.

N.W. Washington, D.C. 20549

Commissioners:

We are aware that our report dated May 11, 2010 on our review of interim financial information of Varian Medical Systems, Inc. for the three-month and six-month periods ended April 2, 2010 and April 3, 2009 and included in the Company’s quarterly report on Form 10-Q for the quarter ended April 2, 2010 is incorporated by reference in its Registration Statements on Form S-8 (No. 333-146176, No. 333-130001, No. 333-152903, No. 333-123778, No. 333-75531, No. 333-57006, No. 333-57008, No. 333-57010, No. 333-57012, No. 333-161307).

Yours very truly,

/S/    PRICEWATERHOUSECOOPERS LLP

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