Paulos PE, Boston S, Skinner O, Liptak JM, Amsellem PM, Fournier Q, Wood CJ, Maurizio A, Murgia D, Oblak ML, Dean BL, Baird SD, Kulendra NJ. Outcome with Surgical Treatment of Canine Soft Tissue Sarcoma in the Region of the Ischiatic Tuberosity: A Veterinary Society of Surgical Oncology Retrospective Study.
Vet Comp Oncol 2022;
20:669-678. [PMID:
35420253 DOI:
10.1111/vco.12821]
[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: 01/20/2022] [Revised: 03/27/2022] [Accepted: 04/11/2022] [Indexed: 11/29/2022]
Abstract
OBJECTIVE
To determine the outcome of dogs with soft tissue sarcoma (STS) within the region of the ischiatic tuberosity (ITSTS) treated surgically.
STUDY DESIGN
Multi-institutional retrospective study ANIMALS: Fifty-two client-owned dogs with histologically confirmed STS in the region of the IT treated with surgical resection between March 1st, 2009, and March 1st, 2021, and a minimum follow-up time of six months.
METHODS
Data collected included signalment, preoperative diagnostics, surgical intent/method, complications, histopathology, margins, outcome, and cause of death. Statistical analyses were performed to determine significant factors in treatment and prognosis of ITSTS.
RESULTS
Fifty-two dogs with histopathologically-confirmed ITSTS included resulting in 24 grade I, 20 grade II, and seven grade III tumors. Overall survival time and disease progression were negatively associated with tumor grade while recurrence was positively associated with grade and incomplete margins. Overall survival time and progression-free survival time was not reached for tumors graded as I or II and was 255 and 268 days respectively for grade III. Median time to recurrence was not reached for tumors excised with complete margins and 398 days for incomplete margins. There was a 25% reported surgical complication rate.
CONCLUSION
Ischiatic tuberosity soft tissue sarcoma was not found to be a unique clinical entity in dogs. Treatment recommendations and prognosis were similar to STS in other locations. The outcome was influenced by histologic grade and margins.
CLINICAL SIGNIFICANCE
Ischiatic tuberosity soft tissue sarcoma of dogs does not behave more aggressively than those in other locations. Surgical complications were common but not life-threatening. Overall prognosis, including survival and disease recurrence, appears to depend on histological grade and surgical margins. This article is protected by copyright. All rights reserved.
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