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Nikiforchin A, Sardi A, King MC, Baron E, Lopez-Ramirez F, Falla-Zuniga LF, Barakat P, Iugai S, Pawlikowski K, Nieroda C, Gushchin V. Patterns of Recurrence in Appendix Cancer After Complete Cytoreduction and Hyperthermic Intraperitoneal Chemotherapy. Ann Surg Oncol 2023; 30:7848-7857. [PMID: 37633853 DOI: 10.1245/s10434-023-14145-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Accepted: 07/26/2023] [Indexed: 08/28/2023]
Abstract
BACKGROUND It is thought that low-grade (LG) appendiceal cancer (AC) demonstrates predominantly intraperitoneal recurrence (IPR) after cytoreductive surgery with hyperthermic intraperitoneal chemotherapy (CRS/HIPEC), whereas high-grade (HG) tumors progress both intra- and extraperitoneally (EPR). However, evidence supporting this conception is lacking; therefore, we assessed recurrence in various AC histologies. METHODS A retrospective, cohort study was conducted by using a single-center database (1998-2022). Recurrence patterns (IPR, EPR, combined) were identified for LG, HG, high-grade with signet ring cells (SRC), and goblet cell carcinoma (GCC). RESULTS We included 432 complete (CC-0/1) CRS/HIPECs: 200 LG, 114 HG, 72 SRC, and 46 GCC. Median follow-up was 78 (95% confidence interval [CI] 70-86) months. Overall, 34% (n = 148) of patients recurred. IPR was the most common (LG 16%, HG 27%, SRC 36%, GCC 26%) with median time to recurrence (MTR) of 21 (IQR: 12-40) months. EPR (liver, lung, pleura, lymph nodes, or bones) occurred in LG 3%, HG 9%, SRC 22%, and GCC 7%. MTR was 11 (IQR: 4-16) months. Combined pattern occurred in LG 0%, HG 8%, SRC 7%, and GCC 0%. MTR was 13 (IQR: 7-18) months. Iterative surgery was performed in 53% IPR, 18% EPR, and 51% combined. Median post-recurrence survival was longer after IPR compared with EPR and combined recurrence: 36 (95% CI 25-47) versus 13 (95% CI 7-19) and 18 (95% CI 6-30) months (p < 0.01). CONCLUSIONS After complete CRS/HIPEC, IPR was the predominant pattern in all AC histologies and occurred later. Post-recurrence survival after IPR was longer. Knowing AC recurrence patterns can help to understand its biology and plan follow-up and post-relapse management.
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Affiliation(s)
- Andrei Nikiforchin
- Surgical Oncology, The Institute for Cancer Care, Mercy Medical Center, Baltimore, MD, USA
| | - Armando Sardi
- Surgical Oncology, The Institute for Cancer Care, Mercy Medical Center, Baltimore, MD, USA.
| | - Mary Caitlin King
- Surgical Oncology, The Institute for Cancer Care, Mercy Medical Center, Baltimore, MD, USA
| | - Ekaterina Baron
- Surgical Oncology, The Institute for Cancer Care, Mercy Medical Center, Baltimore, MD, USA
| | - Felipe Lopez-Ramirez
- Surgical Oncology, The Institute for Cancer Care, Mercy Medical Center, Baltimore, MD, USA
| | | | - Philipp Barakat
- Surgical Oncology, The Institute for Cancer Care, Mercy Medical Center, Baltimore, MD, USA
| | - Sergei Iugai
- Surgical Oncology, The Institute for Cancer Care, Mercy Medical Center, Baltimore, MD, USA
| | - Kathleen Pawlikowski
- Surgical Oncology, The Institute for Cancer Care, Mercy Medical Center, Baltimore, MD, USA
| | - Carol Nieroda
- Surgical Oncology, The Institute for Cancer Care, Mercy Medical Center, Baltimore, MD, USA
| | - Vadim Gushchin
- Surgical Oncology, The Institute for Cancer Care, Mercy Medical Center, Baltimore, MD, USA
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Erstad DJ, Robinson KA, Beaty K, Rafeeq S, Chiang YJ, Raghav K, Shen JP, Overman MJ, Foo WC, Taggart MW, Mansfield PF, Royal RE, Fournier KF, Scally CP. Prognostic significance of acellular mucin in patients undergoing cytoreductive surgery and hyperthermic intraperitoneal chemotherapy (CRS/HIPEC) for appendiceal neoplasms. Langenbecks Arch Surg 2023; 408:110. [PMID: 36853519 DOI: 10.1007/s00423-022-02732-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2022] [Accepted: 10/15/2022] [Indexed: 03/01/2023]
Abstract
INTRODUCTION Appendiceal neoplasms have a propensity for peritoneal dissemination. The standard of care for select individuals is CRS/HIPEC. In the current 8th AJCC Staging system, a finding of only intraperitoneal acellular mucin (M1a) is classified as Stage IVa. There is concern that the current AJCC system may over-stage patients. METHODS This was a single-institution retrospective review of 164 cases of mucinous appendiceal neoplasm. Patients undergoing CRS/HIPEC with M1a disease were compared to patients with peritoneal deposits containing tumor cells (well-differentiated adenocarcinoma; low-grade mucinous carcinoma peritonei-M1b,G1). Overall and recurrence-free survival were assessed. RESULTS Median age was 51 years, 70% were female, and 75% White. Sixty-four patients had M1a disease and 100 M1b,G1 disease. M1a disease had a lower median PCI score (11 vs. 20, p = .0001) and a higher rate of complete CRS (62% vs. 50%, p = .021). Median follow-up was 7.6 years (IQR 5.6-10.5 years). For M1a disease, there were no recurrences and only one patient died during the study interval. In comparison, for M1b disease, 66/100 (66%) recurred with a 5-year RFS of 40.5% (HR 8.0, 95% CI 4.9-15.1, p < .0001), and 31/100 (31%) died with a 5-year OS of 84.8% (HR 4.5, 95% CI 2.2-9.2, p < .0001). CONCLUSIONS Acellular mucin (M1a disease) after CRS/HIPEC for appendiceal neoplasm is associated with longer OS and RFS compared to M1b, G1 disease. Current AJCC staging does not accurately reflect the differing outcomes of these two patient populations. The presence of acellular mucin in the peritoneal cavity should not be perceived as a metastatic equivalent.
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Affiliation(s)
- Derek J Erstad
- Department of Surgical Oncology, University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd, Unit 1484, Houston, TX, 77030-4009, USA.
| | - Kristen A Robinson
- Department of Surgical Oncology, University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd, Unit 1484, Houston, TX, 77030-4009, USA
| | - Karen Beaty
- Department of Surgical Oncology, University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd, Unit 1484, Houston, TX, 77030-4009, USA
| | - Safia Rafeeq
- Department of Surgical Oncology, University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd, Unit 1484, Houston, TX, 77030-4009, USA
| | - Yi-Ju Chiang
- Department of Surgical Oncology, University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd, Unit 1484, Houston, TX, 77030-4009, USA
| | - Kanwal Raghav
- Department of Gastrointestinal Medical Oncology, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - John P Shen
- Department of Gastrointestinal Medical Oncology, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Michael J Overman
- Department of Gastrointestinal Medical Oncology, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Wai Chin Foo
- Department of Pathology, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Melissa W Taggart
- Department of Pathology, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Paul F Mansfield
- Department of Surgical Oncology, University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd, Unit 1484, Houston, TX, 77030-4009, USA
| | - Richard E Royal
- Department of Surgery, Maine Medical Center, Portland, MN, USA
| | - Keith F Fournier
- Department of Surgical Oncology, University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd, Unit 1484, Houston, TX, 77030-4009, USA
| | - Christopher P Scally
- Department of Surgical Oncology, University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd, Unit 1484, Houston, TX, 77030-4009, USA
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Jain A, Flood MP, Ramsay R, Michael M, Kong JCH, Heriot AG. Appendiceal pseudomyxoma peritonei: unmasking the indolent invader. ANZ J Surg 2022; 92:3135-3136. [PMID: 36527695 PMCID: PMC10108110 DOI: 10.1111/ans.17971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Accepted: 07/27/2022] [Indexed: 12/23/2022]
Affiliation(s)
- Anshini Jain
- Department of Surgical Oncology, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia.,Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Victoria, Australia
| | - Michael P Flood
- Department of Surgical Oncology, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia.,Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Victoria, Australia
| | - Robert Ramsay
- Department of Surgical Oncology, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia.,Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Victoria, Australia
| | - Michael Michael
- Department of Surgical Oncology, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia.,Department of Medical Oncology, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | - Joseph C H Kong
- Department of Surgical Oncology, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia.,Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Victoria, Australia
| | - Alexander G Heriot
- Department of Surgical Oncology, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia.,Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Victoria, Australia
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Comprehensive Treatment Algorithms of the Swiss Peritoneal Cancer Group for Peritoneal Cancer of Gastrointestinal Origin. Cancers (Basel) 2022; 14:cancers14174275. [PMID: 36077810 PMCID: PMC9454505 DOI: 10.3390/cancers14174275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 08/26/2022] [Accepted: 08/29/2022] [Indexed: 11/16/2022] Open
Abstract
Peritoneal cancer (PC) is a dire finding, yet in selected patients, long-term survival is possible. Complete cytoreductive surgery (CRS) together with combination immunochemotherapy is essential to achieve cure. Hyperthermic intraperitoneal chemotherapy (HIPEC) and pressurized intraperitoneal aerosol chemotherapy (PIPAC) are increasingly added to the multimodal treatment. The Swiss Peritoneal Cancer Group (SPCG) is an interdisciplinary group of expert clinicians. It has developed comprehensive treatment algorithms for patients with PC from pseudomyxoma peritonei, peritoneal mesothelioma, gastric, and colorectal origin. They include multimodal neoadjuvant treatment, surgical resection, and palliative care. The indication for and results of CRS HIPEC and PIPAC are discussed in light of the current literature. Institutional volume and clinical expertise required to achieve best outcomes are underlined, while inclusion of patients considered for CRS HIPEC and PIPAC in a clinical registry is strongly advised. The present recommendations are in line with current international guidelines and provide the first comprehensive treatment proposal for patients with PC including intraperitoneal chemotherapy. The SPCG comprehensive treatment algorithms provide evidence-based guidance for the multimodal care of patients with PC of gastrointestinal origin that were endorsed by all Swiss clinicians routinely involved in the multimodal care of these challenging patients.
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Flood MP, Kong JC, Pham T, Waters PS, Soucisse M, Ramsay R, Wong HL, Mitchell C, Michael M, McCormick JJ, Warrier S, Akhurst T, Heriot A. Diagnostic performance of positron emission tomography in the staging of Pseudomyxoma peritonei. EUROPEAN JOURNAL OF SURGICAL ONCOLOGY 2022; 48:1606-1613. [DOI: 10.1016/j.ejso.2022.02.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Revised: 01/09/2022] [Accepted: 02/01/2022] [Indexed: 10/19/2022]
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