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Single-center Experience of 24 Cases of Tailgut Cyst

 Ahmad Sakr  ;  Ho Seung Kim  ;  Yoon Dae Han  ;  Min Soo Cho  ;  Hyuk Hur  ;  Byung Soh Min  ;  Kang Young Lee  ;  Nam Kyu Kim 
 ANNALS OF COLOPROCTOLOGY, Vol.35(5) : 268-274, 2019 
Journal Title
Issue Date
Presacral tumors ; Retrorectal space ; Tailgut cyst
PURPOSE: Tailgut cysts are rare congenital or developmental lesions that arise from vestiges of the embryological hindgut. They are usually present in the presacral space. We report our single-center experience with managing tailgut cysts. METHODS: We conducted a retrospective analysis of 24 patients with tailgut cyst treated surgically at the Colorectal Surgery Department of Severance Hospital, Yonsei University, Seoul, South Korea, between 2007-2018. RESULTS: This study included 24 patients (18 females) with a median age of 51.5 years (range, 21-68 years). Ten cases were symptomatic and 14 were asymptomatic. Cysts were retrorectal in 21 patients. Cysts were below the coccyx level in 16 patients, opposite the coccyx in 6, and above the coccyx in 2. Cysts were supralevator in 5 patients, had a supra- and infralevator extension in 18 patients, and were infralevator in 1. Ten patients were managed using an anterior laparoscopic approach, 11 using a posterior approach, and 3 using a combined approach. Mean cyst size was 5.5 ± 2.7 cm. Postoperative complications were Clavien-Dindo (CD) classification grade II in 9 patients (37.5%) and CD grade III in 1 (4.2%). The posterior approach group showed the highest rate of complications (P = 0.021). Patients managed using a combined approach showed a larger cyst size (P < 0.001), longer operation times (P < 0.001), and a greater likelihood of tumor level above the coccyx (P = 0.002) compared to other approaches. The tumors of 2 male patients were malignant: 1 was a neuroendocrine tumor treated with radiotherapy, while the other was a closely followed adenocarcinoma. Median follow-up was 12 months (range, 1-66 months) with no recurrence. CONCLUSION: Tailgut cysts are uncommon but can cause perineal or pelvic pain. Complete surgical excision via an appropriate approach according to tumor size, location, and correlation with adjacent pelvic floor muscles is the key treatment.
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1. College of Medicine (의과대학) > Dept. of Surgery (외과학교실) > 1. Journal Papers
Yonsei Authors
Kim, Nam Kyu(김남규) ORCID logo https://orcid.org/0000-0003-0639-5632
Kim, Ho Seung(김호승)
Min, Byung Soh(민병소) ORCID logo https://orcid.org/0000-0003-0180-8565
Lee, Kang Young(이강영)
Cho, Min Soo(조민수)
Han, Yoon Dae(한윤대) ORCID logo https://orcid.org/0000-0002-2136-3578
Hur, Hyuk(허혁) ORCID logo https://orcid.org/0000-0002-9864-7229
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