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Januś D, Kalicka-Kasperczyk A, Wójcik M, Drabik G, Starzyk JB. Long-term ultrasound follow-up of intrathyroidal ectopic thymus in children. J Endocrinol Invest 2020; 43:841-852. [PMID: 31902058 DOI: 10.1007/s40618-019-01172-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Accepted: 12/21/2019] [Indexed: 12/18/2022]
Abstract
OBJECTIVE To present the sonographic follow-up of intrathyroidal ectopic thymus (IET) in children and adolescent patients. PATIENTS Out of the 507 children referred to FNAB between 2006 and 2018, 30 (5.9%) pediatric patients (10 females), mean age 5.7 years (1.2-13.8, median 4.9 years) were diagnosed with IET. METHODS A retrospective analysis of medical files of patients diagnosed with IET between 2006 and 2018. Assessed data included ultrasound characterisation, elastographic strain ratio (SR) results and hormonal evaluation. RESULTS Analysis of thyroid US scans revealed that the mean age at the first thyroid ultrasound was 5.7 (1.2-13.8, median 4.9) years, and at the last US 10.7 (3.7-18, median 10.5) years. The mean time of the IET observation was 59.6 (2-148, median 53.5) months. On US, IET was hypoechoic with multiple linear and punctate echoes, hypovascular, fusiform on longitudinal plane and round or polygonal on an axial plane, more common in the right thyroid lobe (66.7%) and located in the posterior part of the lobes (54.5%), bilateral in two patients and multifocal in one patient. SR of IET was similar to the surrounding normal thyroid tissue. Complete regression of IET was observed in 12/30 patients after a mean time of 81.7 months (median 76.5), at the mean age of 13.7 (9.2-18, median 13.9) years. FNAB was performed in 10/30 and a hemithyroidectomy in 1/30 IET patients. In the FNAB (+) group, patients were younger (5.08 vs 6.08 years) and lesions were larger (0.12 ml vs 0.05 ml) than in the FNAB (-) group. All patients with IET were euthyroid with negative TPOAb and TgAb levels. CONCLUSION The reproducibility of unique ultrasound features of IETs allows for safe long-term follow-up of these benign lesions in the majority of pediatric patients: not only monitoring the regression of IET but also screening towards the rare occurrence of a tumor arising from the IET.
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Affiliation(s)
- D Januś
- Department of Paediatric and Adolescent Endocrinology, Chair of Paediatrics, Institute of Paediatrics, Jagiellonian University Medical College, Wielicka St. 265, 30-663, Kraków, Poland.
- Department of Paediatric and Adolescent Endocrinology, University Children's Hospital, Kraków, Poland.
| | - A Kalicka-Kasperczyk
- Department of Paediatric and Adolescent Endocrinology, Chair of Paediatrics, Institute of Paediatrics, Jagiellonian University Medical College, Wielicka St. 265, 30-663, Kraków, Poland
- Department of Paediatric and Adolescent Endocrinology, University Children's Hospital, Kraków, Poland
| | - M Wójcik
- Department of Paediatric and Adolescent Endocrinology, Chair of Paediatrics, Institute of Paediatrics, Jagiellonian University Medical College, Wielicka St. 265, 30-663, Kraków, Poland
- Department of Paediatric and Adolescent Endocrinology, University Children's Hospital, Kraków, Poland
| | - G Drabik
- Department of Clinical Immunology and Transplantation, Institute of Paediatrics, Jagiellonian University Medical College, Kraków, Poland
| | - J B Starzyk
- Department of Paediatric and Adolescent Endocrinology, Chair of Paediatrics, Institute of Paediatrics, Jagiellonian University Medical College, Wielicka St. 265, 30-663, Kraków, Poland
- Department of Paediatric and Adolescent Endocrinology, University Children's Hospital, Kraków, Poland
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Januś D, Wójcik M, Taczanowska A, Sołtysiak P, Wędrychowicz A, Roztoczyńska D, Drabik G, Wyrobek Ł, Starzyk JB. Follow-up of parenchymal changes in the thyroid gland with diffuse autoimmune thyroiditis in children prior to the development of papillary thyroid carcinoma. J Endocrinol Invest 2019; 42:261-270. [PMID: 29872995 PMCID: PMC6394764 DOI: 10.1007/s40618-018-0909-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/01/2018] [Accepted: 05/30/2018] [Indexed: 12/28/2022]
Abstract
PURPOSE To present the outcomes of ultrasound (US) follow-ups in children with autoimmune thyroid disease who did not have a thyroid nodule on admission but developed papillary thyroid carcinoma (PTC) and to characterize the parenchymal changes in the thyroid gland prior to the development of PTC. METHODS A retrospective thyroid US scan review of 327 patients diagnosed with AIT was performed. Forty patients (40/327, 12.2%) presented nodular AIT variant with a normoechogenic background. Eleven patients (11/327, 3.4%, 11/40, 27.5%) presenting this variant were diagnosed with PTC (nine females-mean age 15.3 years; two males aged 11 and 13 years). In five of 11 patients, the suspicious nodule that was later confirmed to be PTC was detected on the initial US at presentation. For the remaining six females (6/11) who developed PTC during the follow-up, we retrospectively analysed their US thyroid scans and these patients were selected for analysis in this study. RESULTS On admission, the US evaluation revealed an enlarged normoechogenic thyroid gland in three patients and a hypoechogenic thyroid gland with fibrosis as indicated by irregular, chaotic hyperechogenic layers in three patients. No thyroid nodules were identified. Ultrasound monitoring revealed increasing echogenicity of the thyroid parenchyma during the follow-up. PTC developed in a mean time of 4.6 years (1 9/12-7 4/12 years) since referral to the outpatient thyroid clinic and 2.9 years (6/12-6 9/12) since the last nodule-free US thyroid scan. CONCLUSIONS Sonographic follow-up assessments warrant further exploration as a strategy to determine PTC susceptibility in the paediatric population.
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Affiliation(s)
- D Januś
- Department of Pediatric and Adolescent Endocrinology, Chair of Pediatrics, Institute of Pediatrics, Jagiellonian University Medical College, Wielicka St. 265, 30-663, Krakow, Poland.
- Department of Pediatric and Adolescent Endocrinology, University Children Hospital, Krakow, Poland.
| | - M Wójcik
- Department of Pediatric and Adolescent Endocrinology, Chair of Pediatrics, Institute of Pediatrics, Jagiellonian University Medical College, Wielicka St. 265, 30-663, Krakow, Poland
- Department of Pediatric and Adolescent Endocrinology, University Children Hospital, Krakow, Poland
| | - A Taczanowska
- Department of Pediatric Surgery, University Children Hospital, Krakow, Poland
- Department of Pediatric Surgery, Institute of Pediatrics, Jagiellonian University Medical College, Krakow, Poland
| | - P Sołtysiak
- Department of Pediatric Surgery, University Children Hospital, Krakow, Poland
- Department of Pediatric Surgery, Institute of Pediatrics, Jagiellonian University Medical College, Krakow, Poland
| | - A Wędrychowicz
- Department of Pediatric and Adolescent Endocrinology, Chair of Pediatrics, Institute of Pediatrics, Jagiellonian University Medical College, Wielicka St. 265, 30-663, Krakow, Poland
- Department of Pediatric and Adolescent Endocrinology, University Children Hospital, Krakow, Poland
| | - D Roztoczyńska
- Department of Pediatric and Adolescent Endocrinology, University Children Hospital, Krakow, Poland
| | - G Drabik
- Department of Clinical Immunology and Transplantation, Institute of Paediatrics, Jagiellonian University Medical College, Krakow, Poland
| | - Ł Wyrobek
- Department of Radiology, University Children Hospital, Krakow, Poland
| | - J B Starzyk
- Department of Pediatric and Adolescent Endocrinology, Chair of Pediatrics, Institute of Pediatrics, Jagiellonian University Medical College, Wielicka St. 265, 30-663, Krakow, Poland
- Department of Pediatric and Adolescent Endocrinology, University Children Hospital, Krakow, Poland
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