Hello Inna!
 That's a small amount of growth in 4 years so you may wish to watch by annual MRI for a bit yet.
 I see this center does irradiation in Israel:
 ISRAEL
(LINAC, minimultileaf collimator, FSR) Dr. Roberto Spiegelmann, Director, Stereotactic Neurosurgery and Radiosurgery Unit, The Chaim Sheba Medical Center, Tel HaShomer Israel 52621. Dr. Spiegelmann has been offering radiosurgery for years, and as of January, 1999, he also offers FSR. His email is spiegel@sheba.health.gov.il ; his telephone numbers are:
+972 3-530-2486 hospital
+972 3-534-5070 private clinic
+972 3-530-2650 secretary
+972 3-535-4413 fax
For Gamma Knife radiation:
http://www.irsa.org/ ( see: Centers of Excellence )
Also,
for surgery:
ISRAEL
Belinson Hospital, Rabin Medical Center, Petach Tikwa, Israel. Dr. Nachman Einan, Deputy Head of Neurosurgery. Ph. 03-9376401/2/6
Hadassah University Medical Center. Prof. Felix Umansky (Chief of Surgery), may be contacted through their website
http://www.hadassah.org.il/english, by phone at +972-2-6777091, or at his email umansky@hadassah.org.il,
Russ