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Objectives: The study aims to retrospectively summarize the clinical features of pediatric thyroglossal duct cyst (TGDC), investigate the efficacy of the modified Sistrunk (mSis) procedure, and analyze the recurrence risks. Methods: The clinical data of 391 children with TGDC admitted to Beijing Children's Hospital affiliated Capital Medical University and Baoding Children's Hospital from March 2012 to December 2021 were retrospectively analyzed. All patients underwent cervical ultrasound for preoperative evaluation. Twenty cases had magnetic resonance imaging and 8 cases had computed tomography for further evaluation. All patients underwent the standard mSis procedure, and clinical manifestations information, surgical information, complications, and prognosis were analyzed. Results: Among the 391 TGDC cases, 118 (30.2%) had a history of recurrent neck infection and 36 (9.2%) had undergone previous neck cyst and fistula resection surgeries, initially diagnosed as neck cyst (22 cases), TGDC (12 cases), or branchial fistula (2 cases), with only 6 cases having undergone partial hyoid bone resection in the previous operation. During the 15 to 156 months of follow-up, 10 children experienced local wound infection, but no other complications were reported. The recurrence rate was 2.30%, and the recurrence time ranged from 0.5 to 34 (average, 7.2) months post surgery. In the Poisson regression model examining factors related to recurrence, the P values of the 3 factors were <.05: clearness of the lesion boundary, surgical history, and maximum diameter and the relative risk (RR) values corresponding to the 3 risk factors, such as Exp (B), were 27.918, 10.054, and 6.606, respectively. Conclusions: The mSis procedure demonstrated safety and efficacy with fewer complications and a low recurrence rate of 2.30% in the study. Furthermore, the indistinct lesion boundary, surgical history, and large lesion diameter (>2 cm) were independent risk factors for recurrence in pediatric TGDC.Level of Evidence: IV.
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Thyroglossal duct cyst carcinoma (TGDCCa) is a rare condition with only approximately 300 cases reported to date. There is a lack of comprehensive reporting on its clinical manifestations, ultrasound, contrast-enhanced computed tomography, magnetic resonance imaging (MRI) features, immunophenotyping, procedure, and prognosis following modified Sistrunk's procedure. This study aimed to address these gaps by analyzing and summarizing the clinical features of 5 cases of papillary carcinoma arising in thyroglossal duct cysts (TGDC).Five patients with papillary carcinoma in TGDC treated by modified Sistrunk's procedure were included. Their clinical manifestation, physical examination findings, iconography, pathological findings, treatment, and outcomes were analyzed in aiding the diagnosis and treatment of TGDCCa. Immunohistochemistry was used to confirm the papillary carcinoma subtype. The BRAFV600E mutation was detected in 2 patients. No evidence of cancer recurrence, distant metastases, and malignant changes in the thyroid was found after a mean follow-up of 29.8 months.The management of TGDCCa with papillary carcinoma in low-risk patients can be accomplished by performing a modified Sistrunk's procedure along with a regular follow-up imaging of the thyroid and neck. Although postoperative pathological diagnosis is the gold standard for diagnosis, it is equally crucial to comprehend the clinical manifestations and auxiliary diagnostic techniques before surgical intervention.
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AIM: To analyze the rate of recurrence and possible risk factors after surgical treatment in pediatric patients with thyroglossal ductus cyst (TGDC), who underwent the Modified Sistrunk Procedure (MSP). DESIGN: Retrospective study. INSTITUTION: The pediatric otorhinolaryngology clinic of a university. MATERIALS AND METHODS: The study included a total of 251 pediatric patients aged between 2 and 17 years, whose histopathological diagnosis was confirmed and who underwent MSP due to TGDC over a period of 10 years from January 2009 to December 2019. The chi-square test was used to determine the relationship between the independent variables and the dependent variables. Parameters used in the study: The parameters were age, gender, the history of infected TGDC before surgery (cellulitis, abscess), incision and drainage in patients with abscess, number of cysts detected in ultrasonographic imaging, postoperative histopathology, and the number of recurrences. RESULTS: The study included a total of 251 pediatric patients. The mean age of the children was 6.2 years (2-17 years), the mean follow-up period was 4.8 years (2-6 years), and 38 (15.13%) recurrences were observed after 251 MSP applications. Five risk factors were found to be statistically significant in terms of recurrence rates (p<0.05). These risk factors were surgery during the school period (6-10 years), history of infected TGDC, abscess formation, incision/drainage before MSP, and multicystic cyst in ultrasonographic evaluation. CONCLUSION: The main determinant for the five significant risk factors among the causes of MSP recurrence is a history of infected TGDC before surgery. When there is no history of TGDC infection in pediatric patients before surgery, surgery should be planned under appropriate conditions before infection occurs. The risk of infected TGDC, cellulitis, and abscess formation increases at school age in particular due to frequent upper respiratory tract infections. When there is a cyst infection, antibiotic treatment should be applied, and incision and drainage should be avoided as much as possible in the presence of an abscess.
