W J Van Houdt1, A M Schrijver2, R B Cohen-Hallaleh3, N Memos3, N Fotiadis4, M J Smith3, A J Hayes3, F Van Coevorden2, D C Strauss3. 1. Sarcoma Unit, Department of Surgery, The Royal Marsden Hospital, London, UK; Department of Surgical Oncology, The Netherlands Cancer Institute, Amsterdam, The Netherlands. Electronic address: w.v.houdt@nki.nl. 2. Department of Surgical Oncology, The Netherlands Cancer Institute, Amsterdam, The Netherlands. 3. Sarcoma Unit, Department of Surgery, The Royal Marsden Hospital, London, UK. 4. Sarcoma Unit, Department of Interventional Radiology, The Royal Marsden Hospital, London, UK.
Abstract
BACKGROUND: Retroperitoneal tumours often require a preoperative core needle biopsy to establish a histological diagnosis. Literature is scarce regarding the risk of biopsies in retroperitoneal sarcomas, so the aim of this study is to identify the potential risks of core needle biopsies causing needle tract recurrences or local recurrences. METHOD: Patients who underwent resection of a primary retroperitoneal sarcoma between 1990 and 2014 were identified from a prospectively maintained database from two tertiary referral centres. Patient demographics, tumour characteristics and biopsy techniques were examined. The primary endpoint was needle tract recurrence and local intra-abdominal recurrence. RESULTS: 498 patients were included in the analysis. The most common histological subtypes were liposarcoma (66%) and leiomyosarcoma (18%). Of the 498 patients that underwent resection, 255 patients were diagnosed with a preoperative biopsy. Five patients (2%) developed a biopsy site recurrence: 3 patients with leiomyosarcomas and 2 patients with dedifferentiated liposarcomas. All biopsy site recurrences occurred after trans-abdominal biopsies and were not performed with a co-axial technique. There was no significant difference in local recurrence rate between the patients with or without a biopsy (=0.30) or for the biopsy route (trans-abdominal or trans-retroperitoneal (p = 0.72)). CONCLUSION: The risk of a needle tract metastasis after core needle biopsy for retroperitoneal sarcoma is very low but not zero. The safest method seems a trans-retroperitoneal approach with a co-axial technique. Local recurrence rate is not altered after doing a core needle biopsy.
BACKGROUND:Retroperitoneal tumours often require a preoperative core needle biopsy to establish a histological diagnosis. Literature is scarce regarding the risk of biopsies in retroperitoneal sarcomas, so the aim of this study is to identify the potential risks of core needle biopsies causing needle tract recurrences or local recurrences. METHOD:Patients who underwent resection of a primary retroperitoneal sarcoma between 1990 and 2014 were identified from a prospectively maintained database from two tertiary referral centres. Patient demographics, tumour characteristics and biopsy techniques were examined. The primary endpoint was needle tract recurrence and local intra-abdominal recurrence. RESULTS: 498 patients were included in the analysis. The most common histological subtypes were liposarcoma (66%) and leiomyosarcoma (18%). Of the 498 patients that underwent resection, 255 patients were diagnosed with a preoperative biopsy. Five patients (2%) developed a biopsy site recurrence: 3 patients with leiomyosarcomas and 2 patients with dedifferentiated liposarcomas. All biopsy site recurrences occurred after trans-abdominal biopsies and were not performed with a co-axial technique. There was no significant difference in local recurrence rate between the patients with or without a biopsy (=0.30) or for the biopsy route (trans-abdominal or trans-retroperitoneal (p = 0.72)). CONCLUSION: The risk of a needle tract metastasis after core needle biopsy for retroperitoneal sarcoma is very low but not zero. The safest method seems a trans-retroperitoneal approach with a co-axial technique. Local recurrence rate is not altered after doing a core needle biopsy.
Authors: Richard J Straker; Yun Song; Adrienne B Shannon; Clayton T Marcinak; John T Miura; Douglas L Fraker; Giorgos C Karakousis Journal: Ann Surg Oncol Date: 2021-02-16 Impact factor: 5.344
Authors: Carol J Swallow; Dirk C Strauss; Sylvie Bonvalot; Piotr Rutkowski; Anant Desai; Rebecca A Gladdy; Ricardo Gonzalez; David E Gyorki; Mark Fairweather; Winan J van Houdt; Eberhard Stoeckle; Jae Berm Park; Markus Albertsmeier; Carolyn Nessim; Kenneth Cardona; Marco Fiore; Andrew Hayes; Dimitri Tzanis; Jacek Skoczylas; Samuel J Ford; Deanna Ng; John E Mullinax; Hayden Snow; Rick L Haas; Dario Callegaro; Myles J Smith; Toufik Bouhadiba; Silvia Stacchiotti; Robin L Jones; Thomas DeLaney; Christina L Roland; Chandrajit P Raut; Alessandro Gronchi Journal: Ann Surg Oncol Date: 2021-04-14 Impact factor: 4.339