The IPSO program is a 2 day program that begins on the day before SIOP and continues on to the first day of SIOP. This means that the second day of IPSO is in conjunction with the first day of SIOP. The IPSO pre-meeting education program is developed by the local organizing surgeons and is held at the local medical school or children’s hospital .The topics are chosen by the local surgeons with consultation with the IPSO program chair and the IPSO EC. This meeting is one day prior to the 1st day of the IPSO meeting or SIOP day -2.
The 2 day IPSO meeting contains free papers, IPSO symposium and the IPSO keynote.
Highlights IPSO Meeting – San Antonio
IPSO PRE-SIOP EDUCATION: Neuroblastoma
Free attendance for Pre-Education days. Registration needed: Link for Registration
Location: Joe R. & Teresa Lozano Long School of Medicine. UT Health San Antonio. 7703 Floyd Curl Drive,
San Antonio, TX 78229
September 13, 12:30 PM to 5:30 PM
September 14: 07:30 to 17:30 PM
- State-of-the-art Neuroblastoma therapy 2026
- Pre- and Intra-operative Imaging
- Image-Defined Risk Factors (version 2.0)
- Surgery for neuroblastoma
- Biology/Translation
- Opportunities for collaboration
September 13, 6:00 PM to 9.00 PM
- Dinner at Coates Chapel 3000 Augusta Street, San Antonio
- Non-complementary – Registration needed: 95 EUROS: Link for Registration
EDUCATIONAL DAY SIOP/DAY 1 IPSO SEPTEMBER 15, 2026
Registration https://siop-congress.org/register/
EARLY BIRD Until June 23, 2026
Free Poster session 1
IPSO Daniel Hayes Surgical Skills Seminar: Surgical Approaches for 2-Compartment Tumors
Free Poster session 2
IPSO Problem Case Session
Free Poster session 3
Opening Ceremony: IPSO Plaschkes Award
DAY 1 SIOP/Day 2 IPSO September 16, 2026
IPSO Symposium: Lymph nodes in Surgical Oncology
Free Poster session 4: THE ROBERT ARCECI BEST OF IPSO
KEYNOTE IPSO: Twenty-five years of nephron-sparing surgery: Lessons learned
Free Poster session 5
IPSO Annual Dinner. Non-complementary Registration https://siop-congress.org/register/
DAY 2 SIOP/DAY 3 IPSO SEPTEMBER 17, 2026
MTE: Desmoplastic Round cell tumor
IPSO Best poster session
SYMPOSIUM: “Aggressive” RMS Multidisciplinary (Biology, Surgery, Oncology)
SYMPOSIUM: IPSO/PROS/SIOP Metastatic Wilms
KEYNOTE: IPSO Adult cancers in children: Colorectal Cancer
SYMPOSIUM: Extracranial GCT