Kalyan Mansukhbhai Shekhda, Vladislav Zlatkin, Bernard Khoo, Eleni Armeni
{"title":"Thyrotoxicosis due to Gestational Trophoblastic Disease: Unmet Needs in the Management of Gestational Thyrotoxicosis.","authors":"Kalyan Mansukhbhai Shekhda, Vladislav Zlatkin, Bernard Khoo, Eleni Armeni","doi":"10.1155/2024/5318871","DOIUrl":"10.1155/2024/5318871","url":null,"abstract":"<p><p>Thyrotoxicosis during pregnancy is rare but can have severe adverse consequences for the mother or foetus if left undiagnosed and untreated. It can be caused by an underlying thyroid disease or develop as gestational transient thyrotoxicosis. Molar pregnancy stands out as a pathological condition characterized by abnormal trophoblastic cell growth, which can manifest in benign or malignant forms, and is diagnosed with a disproportionate elevation of <i>β</i>-hCG (beta-human chorionic gonadotrophin) and specific features on ultrasonography including absent sac and large multicystic or honeycomb appearance. A pronounced increase in <i>β</i>-hCG levels can trigger hyperthyroidism, due to the structural resemblance between <i>β</i>-hCG and thyroid-stimulating hormone (TSH), although the thyrotrophic effects of <i>β</i>-hCG could vary between patients diagnosed with gestational trophoblastic disease (GTD). In this report, we present two cases (Patient 1: 43 years, Patient 2: 31 years) who came to emergency department following a history of vaginal spotting, palpitations, and hyperemesis. In both patients, blood tests indicated disproportionately elevated <i>β</i>-hCG levels along with high levels of Free T4 (FT4) and Free T3 (FT3), as well as suppressed TSH levels. Ultrasonography showed nonviable products of conception with large multicystic hemorrhagic lesions and empty gestational sacs, thereby confirming GTD. The Burch-Wartofsky Point Scale scores were 20 and 15 points, respectively, suggesting that they were less likely to be in thyroid storm at presentation. Antithyroid medications were administered, followed by evacuation of the products of conception. Postoperatively, their thyroid function was normalized. These cases underscore the importance of ruling out thyroid storm, monitoring thyroid function, and treating hyperthyroidism appropriately before undergoing surgical treatment. It is also important to consider the variability in the thyrotrophic effects of <i>β</i>-hCG among individuals diagnosed with GTD. In addition to monitoring free thyroid hormone levels, it is crucial to consider clinical symptoms to effectively manage such cases.</p>","PeriodicalId":9621,"journal":{"name":"Case Reports in Endocrinology","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2024-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11377108/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142139416","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Izabella Freitas, Anna Albuquerque, Luiz de Marco, Eduardo, José Renan Melo, Juliana Drummond, Beatriz Rocha
{"title":"From Nonfunctioning Adrenocortical Cancer to Biochemically Silent Paraganglioma Associated with <i>SDHB</i> Mutation: An Uncommon Presentation of a Patient with a Retroperitoneal Mass.","authors":"Izabella Freitas, Anna Albuquerque, Luiz de Marco, Eduardo, José Renan Melo, Juliana Drummond, Beatriz Rocha","doi":"10.1155/2024/6664694","DOIUrl":"10.1155/2024/6664694","url":null,"abstract":"<p><p>The combination of clinical characteristics and diagnostic exams including imaging, laboratory, and molecular tests help in the differential diagnosis of retroperitoneal lesions. We report a 41-year-old male with a metastatic retroperitoneal lesion with atypical characteristics, displaying pathological findings consistent with both nonsecretory pheochromocytomas/paragangliomas and adrenal cortex carcinoma. The patient was examined for abdominal pain, weight loss, and hypertension. Abdominal computed tomography showed a 21 × 8 × 10-cm right retroperitoneal mass. He was initially diagnosed as pheochromocytoma/paraganglioma (PHEO/PGL). However, the diagnosis was later changed to adrenocortical carcinoma based on histopathological features of the metastatic lesions and the findings of normal urinary levels of catecholamines/metanephrines. Systemic chemotherapy and abdominal radiotherapy were performed, in addition to multiple surgical resections, with no satisfactory response. The indolent course of the disease and minimal impact on the patient's performance status led to a genetic evaluation which resulted in the identification of a germline mutation in the succinate dehydrogenase complex subunit B (<i>SDHB</i>). An immunohistology review of previous slides was consistent with the hypothesis of a neuroendocrine tumor. Forty percent of the patients with PHEO/PGL have an underlying germline mutation. <i>SDHB</i> mutation is frequently associated with metastatic disease and dominant secretion of noradrenaline and/or dopamine. In addition to the metastatic disease, few cases with the mutations can be a biochemically silent PHEO/PGL. We concluded that the patient presented a metastatic abdominal paraganglioma associated with an <i>SDHB</i> mutation and we reinforced the need to perform genetic screening for all adrenal/extra-adrenal lesions characteristic of PHEO/PGL.</p>","PeriodicalId":9621,"journal":{"name":"Case Reports in Endocrinology","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2024-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11315972/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141916117","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Kidney Stone Risk in Normocalcemic Hyperparathyroidism before and after Parathyroid Surgery.","authors":"Jie Tang, Kamil Malshy, Gyan Pareek","doi":"10.1155/2024/1252724","DOIUrl":"10.1155/2024/1252724","url":null,"abstract":"<p><p>The higher risk for kidney stone in patients with primary hyperparathyroidism is well-documented; stone risk in patients with normocalcemic primary hyperparathyroidism (NPHPT) remains unclear. We present a case of recurrent calcium kidney stones in a patient with severe idiopathic hypercalciuria and NPHPT. The surgical resection of the parathyroid adenoma failed to reduce kidney stone risk (based on the 24-hr urine study) and kidney stone burden (based on ultrasound). This unique case examines the impact of surgical resection of an ectopic parathyroid adenoma on stone risk in a patient with NPHPT and recurrent calcium kidney stones.</p>","PeriodicalId":9621,"journal":{"name":"Case Reports in Endocrinology","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2024-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11272400/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141757356","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Andrew El Alam, Mohamad Fleifel, Dana El Masri, Bertha Maria Nassani, Jessica Abou Chaaya, Mahamadou Minkailou, Mariana Barbat, Arnaud Monier
{"title":"A Case of Myxedema Coma and Adrenal Insufficiency Post Pembrolizumab.","authors":"Andrew El Alam, Mohamad Fleifel, Dana El Masri, Bertha Maria Nassani, Jessica Abou Chaaya, Mahamadou Minkailou, Mariana Barbat, Arnaud Monier","doi":"10.1155/2024/5444975","DOIUrl":"10.1155/2024/5444975","url":null,"abstract":"<p><strong>Background: </strong>Despite their important clinical benefits, immune checkpoint inhibitors (ICIs) are associated with a spectrum of side effects known as immune-related adverse events (irAEs). These can be of various organ system backgrounds, including dermatologic, pulmonary, gastrointestinal, and endocrine. Polyglandular endocrinopathies (PLEs) post-ICIs therapy has been reported in the literature; however, to our knowledge, only a few have been documented with pembrolizumab. <i>Case Report</i>. We present a case of a female patient who developed myxedema coma (MC) and adrenal insufficiency (AI) after 4 months of stopping pembrolizumab, a programed-cell death-1 inhibitor. The patient was clinically symptomatic and was subsequently treated with levothyroxine and hydrocortisone. <i>Discussion</i>. It is very important to be vigilant and alert in detecting MC and AI to avoid any mortality. Pembrolizumab's effect on inducing antitumor responses leads to a wide variety of multiorgan alterations. Its role in raising the risk of all-grade endocrine disorders has been previously highlighted along with thyroidal dysfunctions. Our patient's presentation falls within the literature-based median time for hypothyroidism and AI with respect to the period from the initiation of pembrolizumab. The patient's predisposition to hypothyroidism and the likelihood of intertwined manifestations of AI and hypothyroidism should always be considered in the setting of critical illness.</p><p><strong>Conclusion: </strong>It is of high significance to explore the mechanism of action of ICIs and their side effects. PLEs can house some endocrinologic emergencies that are life threatening.</p>","PeriodicalId":9621,"journal":{"name":"Case Reports in Endocrinology","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2024-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11254456/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141632728","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Maryam Heidarpour, Mohammad Mehdi Zare, Shiva Armani, Hedie Torkashvan, Sadegh Mazaheri-Tehrani, Davood Shafie
{"title":"Acute Heart Failure as a First Manifestation of Primary Adrenal Insufficiency: Highly Lethal If Not Diagnosed!","authors":"Maryam Heidarpour, Mohammad Mehdi Zare, Shiva Armani, Hedie Torkashvan, Sadegh Mazaheri-Tehrani, Davood Shafie","doi":"10.1155/2024/5759629","DOIUrl":"10.1155/2024/5759629","url":null,"abstract":"<p><strong>Background: </strong>Primary adrenal insufficiency is an uncommon condition that manifests as nonspecific symptoms such as fatigue, weight loss, salt craving, and hyperpigmentation. Common cardiovascular presentations of AI are hypotension, arrhythmias, and syncope. However, acute heart failure is an uncommon presentation. <i>Case Presentation</i>. Here, a 26-year-old man was hospitalized with vasopressor-resistant cardiogenic shock, which was finally attributed to an adrenal crisis. His past medical history was notable for Hashimoto's disease, controlled with oral levothyroxine.</p><p><strong>Conclusion: </strong>AI should be considered among patients with cardiogenic shock who are unresponsive to conventional inotropes. Additionally, a history of autoimmune diseases may increase the suspicion of AI. Although the presentation of cardiogenic shock in a patient with undiagnosed AI is considered a rarity, delay in prompt treatment can lead to life-threatening conditions.</p>","PeriodicalId":9621,"journal":{"name":"Case Reports in Endocrinology","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2024-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11223903/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141533761","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Difficulties of Preoperative Diagnosis of Cribriform Morular Thyroid Carcinoma.","authors":"Li-Hsin Pan, Jen-Fan Hang, Jui-Yu Chen, Po-Sheng Lee, Yun-Kai Yeh, Tai-Jung Huang, Chii-Min Hwu, Chin-Sung Kuo","doi":"10.1155/2024/6517236","DOIUrl":"10.1155/2024/6517236","url":null,"abstract":"<p><strong>Background: </strong>Cribriform morular thyroid carcinoma has been recently renamed in the 2022 WHO classification as a thyroid tumor of uncertain histogenesis. The epidemiologic, pathological, and pathophysiological characteristics distinguish it from papillary thyroid carcinoma (PTC). Preoperative genetic testing plays a role in facilitating the differential diagnosis.</p><p><strong>Methods: </strong>This report presents a confirmed case of cribriform morular thyroid carcinoma. Initially, fine-needle aspiration cytology suggested a diagnosis of PTC. However, a genetic analysis did not reveal the typical mutations associated with follicular-cell-derived neoplasms.</p><p><strong>Results: </strong>A 31-year-old woman was found to have a thyroid nodule at the left lobe measuring 11.8 × 10.2 × 12.4 mm. Ultrasonography indicated a hypoechoic, solid nodule with regular margins. Cytology revealed a papillary structure of tall cells, leading to a PTC diagnosis. Nevertheless, the genetic analysis failed to detect mutations such as <i>BRAF V600E</i>, <i>NRAS Q61R</i>, <i>NRAS Q61K</i>, <i>HRAS Q61R</i>, <i>or HRAS Q61K</i> mutation or the fusion of <i>CCDC6-RET</i>, <i>NCOA4-RET</i>, <i>PAX8-PPARG</i>, <i>ETV6-NTRK3</i>, <i>TPM3-NTRK1</i>, <i>IRF2BP2-NTRK1</i>, or <i>SQSTM1-NTRK1</i> in the aspirated follicular cells. The patient subsequently underwent total thyroidectomy with central lymph node dissection. Pathological examination revealed a cribriform pattern of spindle-shaped cells with morular areas. Immunohistochemical staining showed positive results for <i>β</i>-catenin and TTF-1, except in the morular regions, and negative results for PAX8, thyroglobulin, and BRAF (clone VE1). The diagnosis was confirmed to be cribriform morular thyroid carcinoma.</p><p><strong>Conclusion: </strong>Significant cytological similarity exists between PTC and cribriform morular thyroid carcinoma. Preoperative genetic analysis is important to differentiate these two diseases. Cribriform morular thyroid carcinoma can be differentiated from common follicular-cell-derived tumors by the absence of typical mutations; the presence of nuclear and cytoplasmic expressions of <i>β</i>-catenin; the presence of TTF-1, except in morular areas; and the absence of thyroglobulin.</p>","PeriodicalId":9621,"journal":{"name":"Case Reports in Endocrinology","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2024-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11150044/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141247616","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Persistent Lactatemia in Mauriac Syndrome.","authors":"Nada El Tobgy, Laura Hinz","doi":"10.1155/2024/5599984","DOIUrl":"10.1155/2024/5599984","url":null,"abstract":"<p><p>Mauriac syndrome is a rare disorder that occurs in patients with type 1 diabetes mellitus (T1DM) with glucose levels significantly above target, characterized by hepatomegaly, growth delay, and cushingoid features. Another distinguishing feature of Mauriac syndrome is persistent lactatemia during diabetic ketoacidosis (DKA) management. We present a case of an 18-year-old patient with T1DM who presented in DKA and then developed elevated lactate levels leading to a diagnosis of Mauriac syndrome. The cause of the persistent lactatemia is not well understood though it is likely related to glycogenic hepatopathy causing hepatomegaly, abnormalities in glucose metabolism, and subsequent inappropriate lactate production. Since the liver changes seen in Mauriac syndrome are reversible with optimal blood glucose control, these patients should be connected to intensive psychosocial and medical support to help them improve their blood glucose levels.</p>","PeriodicalId":9621,"journal":{"name":"Case Reports in Endocrinology","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2024-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11093684/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140921056","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A Case of Pancreatic Neuroendocrine Tumor with Liver Metastases Demonstrating the Possibility of Enhanced ACTH Production by the SACI Test","authors":"Hirozumi Mori, Masashi Tamura, Ryo Ogawa, Yuta Kimata, Sho Endo, Katsutoshi Sekine, Sayuri Kodama, Hiromi Hisazumi Watanabe, Kiyoshi Ookuma, Masahiro Jinzaki","doi":"10.1155/2024/5923680","DOIUrl":"https://doi.org/10.1155/2024/5923680","url":null,"abstract":"Objective. ACTH-producing pancreatic NETs have a propensity to metastasize, and in patients with metastases, there is no established method yet to precisely determine if the excess ACTH is produced by the primary or the metastatic tumors. Localizing the source of production of ACTH in such cases is important for devising suitable treatment strategies and evaluating the benefit of local therapies from the viewpoint of control of Cushing’s syndrome. Methods. We performed the selective arterial calcium injection (SACI) test combined with selective portal and hepatic venous sampling in a 32-year-old female patient with ectopic ACTH-producing pancreatic NET and liver metastases. Results. The blood level of ACTH after Ca loading was significantly elevated only in the vessels thought to be directly feeding the pancreatic tumor, and Ca loading from any artery did not significantly increase ACTH concentrations in the hepatic veins compared to the main trunk of the portal vein. Conclusions. The present case demonstrates that there might be an ACTH-producing p-NET that responds to Ca loading. Further in vitro studies are required to validate this possibility.","PeriodicalId":9621,"journal":{"name":"Case Reports in Endocrinology","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2024-04-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140681899","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
S. Asafo-Agyei, E. Ameyaw, B. Nimako, Michael Amoah
{"title":"Challenges in Management of Ovotesticular Differences in Sex Development in Resource-Limited Settings","authors":"S. Asafo-Agyei, E. Ameyaw, B. Nimako, Michael Amoah","doi":"10.1155/2024/9987144","DOIUrl":"https://doi.org/10.1155/2024/9987144","url":null,"abstract":"Differences in sex development (DSD) are congenital conditions in which the development of chromosomal, gonadal, or anatomical sex is atypical. Ovotesticular DSD is the rarest variant of DSD where both ovarian and testicular tissues co-exist in an individual. Ambiguous genitalia may be a glaring indicator of DSD, but multiple genital anomalies should also raise a suspicion of DSD. This is a case report of a 15-year-6-month-old boy who presented during infancy with multiple genital anomalies requiring surgery. The diagnosis of ovotesticular DSD was missed until later in adolescence when he presented with progressive bilateral breast enlargement. Work-up revealed a 46, XX karyotype and dysgenetic testes, but functional ovarian tissue. The patient wanted to consider switching to a female gender but was constrained by psychosocial factors. Maintenance of a masculine phenotype was done using testosterone injections due to the relatively high cost of testosterone patches. Conclusion. Multiple genital anomalies should raise the suspicion of DSD, and prompt referral to an endocrinologist should be done before urogenital surgery and gender assignment are carried out.","PeriodicalId":9621,"journal":{"name":"Case Reports in Endocrinology","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2024-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140687902","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Shinnosuke Yanagisawa, Yoichi Oikawa, Mai Endo, Kazuyuki Inoue, Ritsuko Nakajima, Shigemitsu Yasuda, Masayasu Sato, Naoko Iwata, Haruki Fujisawa, Atsushi Suzuki, Y. Sugimura, M. Isshiki, Akira Shimada
{"title":"A Pregnant Woman with Excess Vasopressinase-Induced Diabetes Insipidus Complicated by Central Diabetes Insipidus like Lymphocytic Infundibulo-Neurohypophysitis","authors":"Shinnosuke Yanagisawa, Yoichi Oikawa, Mai Endo, Kazuyuki Inoue, Ritsuko Nakajima, Shigemitsu Yasuda, Masayasu Sato, Naoko Iwata, Haruki Fujisawa, Atsushi Suzuki, Y. Sugimura, M. Isshiki, Akira Shimada","doi":"10.1155/2024/8687054","DOIUrl":"https://doi.org/10.1155/2024/8687054","url":null,"abstract":"Background Gestational diabetes insipidus (DI) is a very rare complication of pregnancy. We present a case of gestational DI combining two different types of DI. Case Presentation. A 39-year-old pregnant woman suddenly presented with thirst, polydipsia, and polyuria after 31 gestation weeks (GWs). Based on laboratory findings of hypotonic urine (78 mOsm/kgH2O) with higher plasma osmolality (298 mOsm/kgH2O) and higher serum sodium levels (149 mEq/L), gestational DI was suspected, and the clinical course was monitored without therapy until the results of a measurement of plasma arginine vasopressin (AVP) levels were available. However, she subsequently developed acute prerenal failure and underwent an emergency cesarean section at 34 GWs. Her resected placenta weighed 920 g, nearly twice the normal weight. Immediately following delivery, intranasal 1-desamino-8-D-arginine vasopressin was administered, and her symptoms promptly disappeared. Afterward, her predelivery plasma AVP level was found to have been inappropriately low (0.7 pg/mL) given her serum sodium level. The patient's serum vasopressinase level just before delivery was 2,855 ng/mL, more than 1,000 times the upper limit of the normal range, suggesting excess vasopressinase-induced DI. The presence of anti-rabphilin-3A antibodies in the patient's blood, a hypertonic saline infusion test result, and loss of the high-intensity signal of the posterior pituitary on fat-suppressed T1-weighted magnetic resonance images without thickening of the stalk and enlargement of the neurohypophysis suggested concurrent central DI-like lymphocytic infundibulo-neurohypophysitis (LINH). Conclusion In addition to the degradation of AVP by excess placental vasopressinase due to the enlarged placenta, an insufficient compensatory increase in AVP secretion from the posterior pituitary gland due to LINH-like pathogenesis might have led to DI symptoms.","PeriodicalId":9621,"journal":{"name":"Case Reports in Endocrinology","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2024-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140708566","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}