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Calcitonin Changed During Pregnancy in MEN2A With MTC Patient: A Case Report

Background: The diagnosis of MTC during pregnancy was challenging. No definite calcitonin (Ct) cut-off level during pregnancy was defined. Moreover, cytology analysis accuracy in MTC was lower than other thyroid cancers. Stevenson et al. reported that the plasma Ct levels in pregnant women were much...

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Autores principales: Porntharukchareon, Thachanun, Chutpiboonwat, Phronpan, Tangjittrong, Sirinrat, Houngngam, Natnicha, Snabboon, Thiti
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Oxford University Press 2021
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Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8089311/
http://dx.doi.org/10.1210/jendso/bvab048.2029
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author Porntharukchareon, Thachanun
Chutpiboonwat, Phronpan
Tangjittrong, Sirinrat
Houngngam, Natnicha
Snabboon, Thiti
author_facet Porntharukchareon, Thachanun
Chutpiboonwat, Phronpan
Tangjittrong, Sirinrat
Houngngam, Natnicha
Snabboon, Thiti
author_sort Porntharukchareon, Thachanun
collection PubMed
description Background: The diagnosis of MTC during pregnancy was challenging. No definite calcitonin (Ct) cut-off level during pregnancy was defined. Moreover, cytology analysis accuracy in MTC was lower than other thyroid cancers. Stevenson et al. reported that the plasma Ct levels in pregnant women were much higher than normal women. The change in Ct levels during pregnancy was not well described. In this report, we present a case of a pregnant woman with recurrent MTC. The change in Ct levels during pregnancy, diagnosis methods, and proper management were presented here. Clinical Case: A 31-year Thai woman, gravida 2, para 0 at 17 weeks of pregnancy, previously diagnosed with MTC and treated with total thyroidectomy and neck dissection seven years ago. During antenatal care at 14 weeks of pregnancy, the Ct level was 126 pg/ml (raised from 34 pg/ml seven years ago). The neck’s USG demonstrates vascularized hypoechoic lesion at the right thyroid bed with multiple nodules. The Ct wash-out test from this lesion was 200,000 pg/ml. The cytology study showed several clusters of atypical cells possessing monotonous round eccentric nuclei, and the IHC for Ct was positive. Genetic analysis revealed germline mutation in exon 10 of the RET proto-oncogene (NM_020975.4: c.1858T>G, p.C620G). Finally, MEN 2A with recurrent MTC was diagnoses during pregnancy. The other associate diseases were not found (normal urine metanephrines and plasma calcium levels). The Ct level raised highest to 324 pg/ml at 28 weeks of pregnancy and declined to 236 pg/mL a few days after delivery. Within six weeks, the Ct levels raised again (335 and 362 pg/ml at six weeks and three months after delivery). After giving birth, she underwent neck dissection; The Ct level at one month after surgery was still elevated (85 pg/ml). The CT of the chest, abdomen, and bone scan revealed multiple LN and bone metastasis. She regularly followed up in the oncology clinic and did well until nowadays (two years after delivery). After birth, her son could not pass meconium. Causing underwent exploratory laparotomy with double end ileostomy at day nine of life. The histopathology study from serial bowel biopsy demonstrated aganglionosis of the entire colon, which compatible with Hirschsprung’s disease. Genetic study from colonic tissue and blood confirmed the diagnoses of MEN 2A like his mother. Total thyroidectomy before five years of age and investigate for other associated diseases were planned. Conclusion: The Ct levels were elevated throughout the pregnancy. Transient declined of Ct levels during delivery and raised within six weeks suggest that pregnancy did not affect the Ct levels. In this report, we want to present the change of Ct levels during pregnancy, emphasize the diagnosis of MTC and MEN2A in pregnant women, which may change the patient’s prognosis. Not only in the patients but also in their families. Clinicians should be aware of the management of these patients.
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spelling pubmed-80893112021-05-06 Calcitonin Changed During Pregnancy in MEN2A With MTC Patient: A Case Report Porntharukchareon, Thachanun Chutpiboonwat, Phronpan Tangjittrong, Sirinrat Houngngam, Natnicha Snabboon, Thiti J Endocr Soc Tumor Biology Background: The diagnosis of MTC during pregnancy was challenging. No definite calcitonin (Ct) cut-off level during pregnancy was defined. Moreover, cytology analysis accuracy in MTC was lower than other thyroid cancers. Stevenson et al. reported that the plasma Ct levels in pregnant women were much higher than normal women. The change in Ct levels during pregnancy was not well described. In this report, we present a case of a pregnant woman with recurrent MTC. The change in Ct levels during pregnancy, diagnosis methods, and proper management were presented here. Clinical Case: A 31-year Thai woman, gravida 2, para 0 at 17 weeks of pregnancy, previously diagnosed with MTC and treated with total thyroidectomy and neck dissection seven years ago. During antenatal care at 14 weeks of pregnancy, the Ct level was 126 pg/ml (raised from 34 pg/ml seven years ago). The neck’s USG demonstrates vascularized hypoechoic lesion at the right thyroid bed with multiple nodules. The Ct wash-out test from this lesion was 200,000 pg/ml. The cytology study showed several clusters of atypical cells possessing monotonous round eccentric nuclei, and the IHC for Ct was positive. Genetic analysis revealed germline mutation in exon 10 of the RET proto-oncogene (NM_020975.4: c.1858T>G, p.C620G). Finally, MEN 2A with recurrent MTC was diagnoses during pregnancy. The other associate diseases were not found (normal urine metanephrines and plasma calcium levels). The Ct level raised highest to 324 pg/ml at 28 weeks of pregnancy and declined to 236 pg/mL a few days after delivery. Within six weeks, the Ct levels raised again (335 and 362 pg/ml at six weeks and three months after delivery). After giving birth, she underwent neck dissection; The Ct level at one month after surgery was still elevated (85 pg/ml). The CT of the chest, abdomen, and bone scan revealed multiple LN and bone metastasis. She regularly followed up in the oncology clinic and did well until nowadays (two years after delivery). After birth, her son could not pass meconium. Causing underwent exploratory laparotomy with double end ileostomy at day nine of life. The histopathology study from serial bowel biopsy demonstrated aganglionosis of the entire colon, which compatible with Hirschsprung’s disease. Genetic study from colonic tissue and blood confirmed the diagnoses of MEN 2A like his mother. Total thyroidectomy before five years of age and investigate for other associated diseases were planned. Conclusion: The Ct levels were elevated throughout the pregnancy. Transient declined of Ct levels during delivery and raised within six weeks suggest that pregnancy did not affect the Ct levels. In this report, we want to present the change of Ct levels during pregnancy, emphasize the diagnosis of MTC and MEN2A in pregnant women, which may change the patient’s prognosis. Not only in the patients but also in their families. Clinicians should be aware of the management of these patients. Oxford University Press 2021-05-03 /pmc/articles/PMC8089311/ http://dx.doi.org/10.1210/jendso/bvab048.2029 Text en © The Author(s) 2021. Published by Oxford University Press on behalf of the Endocrine Society. https://creativecommons.org/licenses/by-nc-nd/4.0/This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs licence (http://creativecommons.org/licenses/by-nc-nd/4.0/ (https://creativecommons.org/licenses/by-nc-nd/4.0/) ), which permits non-commercial reproduction and distribution of the work, in any medium, provided the original work is not altered or transformed in any way, and that the work is properly cited. For commercial re-use, please contact journals.permissions@oup.com
spellingShingle Tumor Biology
Porntharukchareon, Thachanun
Chutpiboonwat, Phronpan
Tangjittrong, Sirinrat
Houngngam, Natnicha
Snabboon, Thiti
Calcitonin Changed During Pregnancy in MEN2A With MTC Patient: A Case Report
title Calcitonin Changed During Pregnancy in MEN2A With MTC Patient: A Case Report
title_full Calcitonin Changed During Pregnancy in MEN2A With MTC Patient: A Case Report
title_fullStr Calcitonin Changed During Pregnancy in MEN2A With MTC Patient: A Case Report
title_full_unstemmed Calcitonin Changed During Pregnancy in MEN2A With MTC Patient: A Case Report
title_short Calcitonin Changed During Pregnancy in MEN2A With MTC Patient: A Case Report
title_sort calcitonin changed during pregnancy in men2a with mtc patient: a case report
topic Tumor Biology
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8089311/
http://dx.doi.org/10.1210/jendso/bvab048.2029
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