EP955 - Pelvic sarcoma: MDT management for better results

Tuesday, May 13, 2025

8:05 AM – 8:10 AM PT

ePoster Presenter(s)

NU

Natalia Urrea, n/a

Residente Cirugía General
FUCS
BOGOTA, Distrito Capital de Bogota, Colombia

All of the relevant financial relationships listed below have been mitigated.
This individual has no financial relationships with ineligible companies.

Author(s)

Paola Andrea Arce Peña (she/her/hers)

Cirujana General
Hospital San José Sociedad Bogotá de Cirugía
bogotá, Distrito Capital de Bogota, Colombia

All of the relevant financial relationships listed below have been mitigated.
This individual has no financial relationships with ineligible companies.
LT

Luis Torres, .

Fellowship Coloproctology
Clinica los Nogales
Bogota, Cundinamarca, Colombia

Disclosure information not submitted.
AO

Andrés Olaya, n/a

Fellow Coloproctología
FUCS
BOGOTA, Distrito Capital de Bogota, Colombia

Disclosure information not submitted.

Senior Author(s)

MG

Mauricio Gonzalez, n/a

Coloproctólogo
Hospital San José Sociedad Bogotá de Cirugía
BOGOTA, Distrito Capital de Bogota, Colombia

All of the relevant financial relationships listed below have been mitigated.
This individual has no financial relationships with ineligible companies.

Author(s)

LM

Luis Martínez, n/a

Coloproctólogo
Hospital San José Sociedad Bogotá de Cirugía
BOGOTA, Distrito Capital de Bogota, Colombia

Disclosure information not submitted.
DG

Daniel Gonzalez, n/a

Fellow coloproctología
FUCS
BOGOTA, Distrito Capital de Bogota, Colombia

Disclosure information not submitted.
NN

Nelson Niño, n/a

Coloproctologo
FUCS
Bogota, Distrito Capital de Bogota, Colombia

All of the relevant financial relationships listed below have been mitigated.
This individual has no financial relationships with ineligible companies.
DM

David Mayo, n/a

Fellow coloproctología
FUCS
BOGOTA, Distrito Capital de Bogota, Colombia

Disclosure information not submitted.

All of the relevant financial relationships listed below have been mitigated.

Natalia Urrea, n/a: This individual has no financial relationships with ineligible companies.

Paola Andrea Arce Peña: This individual has no financial relationships with ineligible companies.

Mauricio Gonzalez, n/a: This individual has no financial relationships with ineligible companies.

Nelson Niño, n/a: This individual has no financial relationships with ineligible companies.

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Purpose/Background: Sarcomas are malignant mesenchymal tumors, of which less than 5% are reported in pelvic and genitourinary tract location . Direct etiologies have not been identified, although risk factors have been established, originating from connective tissue, they can be asymptomatic before they reach a considerable size. The best possible treatment is surgical resection with negative margins.

Methods/Interventions: A 47-year-old female patient with a 10-month gradual appearance of a right gluteal and perineal mass associated with occasional pain, exacerbated by sitting. On physical examination, a 10x12 cm mobile, non painful mass was found in the right ischiorectal fossa and inner gluteus with extension towards the perineum. An MRI confirmed an heterogeneous vascularized mass with multilobulated contours measuring 58x110x46 mm, and a percutaneous biopsy identified a spindle-cell pattern neoplasia with areas of pleomorphism with moderate mitotic activity. After an MDT meeting upfront surgery was decided, with an extra-levator abdominoperineal resection with an anterior compartment pelvic exenteration followed by adjuvant chemotherapy.

Results/Outcomes: After a successful procedure and no postoperative complications, having adequate aesthetic results and an R0 resection, the patient was discharged after a 6-day hospital stay.

Conclusion/Discussion: The treatment of patients with pelvic sarcomas should be carried out in centers with surgical and oncological experience in search of minimizing complications and improving oncological results. Neoadjuvant therapy is generally not recommended as it has not been shown to improve long-term results while increasing the risk of local toxicity.