1
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Perrin Hee B, Ihionkhan E, Biswal R. A case of carcinoid syndrome after CT guided lung biopsy of a neuroendocrine tumor. Radiol Case Rep 2024; 19:4426-4428. [PMID: 39185434 PMCID: PMC11342091 DOI: 10.1016/j.radcr.2024.07.057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2024] [Accepted: 07/12/2024] [Indexed: 08/27/2024] Open
Abstract
Carcinoid tumors of the lung are an uncommon malignancy that can rarely lead to carcinoid syndrome. Carcinoid tumors represent less than 1% of all lung cancers. This case describes a rare presentation in which a previously asymptomatic woman began to experience tachycardia, shortness of breath, and anxiety after biopsy of a pulmonary carcinoid tumor. Chest CT, histology, and clinical course supported the diagnosis and the patient's symptoms quickly resolved with medication. Ultimately, surgical removal of the tumor led to complete resolution of symptoms.
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Affiliation(s)
- Benjamin Perrin Hee
- Hackensack Meridian School of Medicine, Department of Radiology, 340 Kingsland Street, Nutley, NJ 07110, USA
| | - Emmanuel Ihionkhan
- Hackensack Meridian School of Medicine, Department of Radiology, 340 Kingsland Street, Nutley, NJ 07110, USA
| | - Rajiv Biswal
- Jersey Shore University Medical Center, Department of Radiology, 945 NJ-33, Neptune City, NJ 07753, USA
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2
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Asa SL, Ezzat S. Endocrine tumors of the female reproductive tract. Mol Cell Endocrinol 2024; 582:112123. [PMID: 38135144 DOI: 10.1016/j.mce.2023.112123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 12/08/2023] [Accepted: 12/09/2023] [Indexed: 12/24/2023]
Abstract
Endocrine cells responsible for hormone secretion are found in virtually every organ system. The diverse neoplasms arising from endocrine cells in the female reproductive tract are not well recognized as a distinct component of endocrine oncology. Here, we integrate cellular origins with native anatomical residence to help classify neoplasms of this system. The neoplasms include steroidogenic tumors that arise usually in ovarian stroma, neuroendocrine neoplasms that can arise from normal neuroendocrine cells throughout the female reproductive tract or in ovarian germ cell tumors, and thyroid follicular cell proliferations that are exclusively a component of an ovarian teratoma and may be malignant. The neuroendocrine neoplasms run the full spectrum from indolent neuroendocrine tumors to aggressive poorly differentiated neuroendocrine carcinomas. While many of these lesions are identified as incidental findings in surgically resected tissues, others present with inappropriate hormone excess. An important consideration is the distinction of primary disease from metastatic malignancy. Genetic disorders including those caused by germline mutations of the FOXL2, GNAS, DICER1, STK11 and MEN1 genes can present with primary endocrine neoplasms of the female reproductive tract.
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Affiliation(s)
- Sylvia L Asa
- Department of Pathology, University Hospitals Cleveland Medical Center, Case Western Reserve University, United States.
| | - Shereen Ezzat
- Department of Medicine, Endocrine Oncology, Princess Margaret Hospital, University Health Network, University of Toronto, United States
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3
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Gubbi S, Vijayvergia N, Yu JQ, Klubo-Gwiezdzinska J, Koch CA. Immune Checkpoint Inhibitor Therapy in Neuroendocrine Tumors. Horm Metab Res 2022; 54:795-812. [PMID: 35878617 PMCID: PMC9731788 DOI: 10.1055/a-1908-7790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Neuroendocrine tumors (NETs) occur in various regions of the body and present with complex clinical and biochemical phenotypes. The molecular underpinnings that give rise to such varied manifestations have not been completely deciphered. The management of neuroendocrine tumors (NETs) involves surgery, locoregional therapy, and/or systemic therapy. Several forms of systemic therapy, including platinum-based chemotherapy, temozolomide/capecitabine, tyrosine kinase inhibitors, mTOR inhibitors, and peptide receptor radionuclide therapy have been extensively studied and implemented in the treatment of NETs. However, the potential of immune checkpoint inhibitor (ICI) therapy as an option in the management of NETs has only recently garnered attention. Till date, it is not clear whether ICI therapy holds any distinctive advantage in terms of efficacy or safety when compared to other available systemic therapies for NETs. Identifying the characteristics of NETs that would make them (better) respond to ICIs has been challenging. This review provides a summary of the current evidence on the value of ICI therapy in the management of ICIs and discusses the potential areas for future research.
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Affiliation(s)
- Sriram Gubbi
- Endocrinology, National Institutes of Health Clinical Center, Bethesda,
United States
| | | | - Jian Q Yu
- Nuclear Medicine, Fox Chase Cancer Center, Philadelphia, United
States
| | - Joanna Klubo-Gwiezdzinska
- National Institute of Diabetes and Digestive and Kidney Diseases,
National Institutes of Health, Bethesda, United States
| | - Christian A. Koch
- Medicine/Endocrinology, The University of Tennessee Health
Science Center, Memphis, United States
- Medicine, Fox Chase Cancer Center, Philadelphia, United
States
- Correspondence Prof. Christian A. Koch, FACP,
MACE Fox Chase Cancer
CenterMedicine, 333 Cottman
AvePhiladelphia19111-2497United
States215 728 2713
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4
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Sah S, Borkar PV, Wight C, Kelly P, Park KJ, McCluggage WG. Low-grade Neuroendocrine Tumor of the Cervix: Report of 3 Cases of a Rare Neoplasm With Review of the Literature. Int J Gynecol Pathol 2022; 41:437-446. [PMID: 35075048 PMCID: PMC9309179 DOI: 10.1097/pgp.0000000000000851] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Neuroendocrine neoplasms are uncommon in the cervix with almost all representing neuroendocrine carcinomas (NECs), either small cell or large cell type. Cervical low-grade neuroendocrine tumors (NETs) are extremely rare with few recent reports using contemporary modern diagnostic criteria. We report 3 cases of cervical NET in patients aged 32 to 57 yr and undertake a review of the literature. The first case was a pure grade 2 NET with pelvic lymph node metastasis (FIGO stage IIIC1). In the second case, a grade 1 NET was associated with high-grade squamous intraepithelial lesion, adenocarcinoma in situ and human papillomavirus (HPV)-associated adenocarcinoma and was FIGO stage IA1. The third patient underwent chemoradiotherapy following a biopsy diagnosis of a high-grade NEC which was radiologically FIGO stage IIIC1 and salvage hysterectomy revealed residual tumor with features of a grade 1 NET. In all cases, the NET was diffusely positive with at least 2 of the neuroendocrine markers chromogranin, synaptophysin, and CD56. The first tumor was p16 negative and the third exhibited block-type immunoreactivity. Molecular tests revealed high risk HPV types 18 and 51 in the third case but no HPV in the first case. p16 immunohistochemistry and HPV molecular testing was not available in the second case. The patients remain disease free with follow-up ranging from 2 to 8 yr. Since a combination of NET and NEC is extremely rare at all sites due to a different pathogenesis, we speculate that in the third case, the NET developed out of the NEC as a "maturation" phenomenon secondary to chemoradiotherapy.
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Affiliation(s)
- Shatrughan Sah
- Department of Histopathology, University Hospitals Coventry and Warwickshire NHS Trust, Coventry, United Kingdom
| | - Pallavi Vijay Borkar
- Department of Histopathology, University Hospitals Coventry and Warwickshire NHS Trust, Coventry, United Kingdom
| | - Catherine Wight
- Department of Histopathology, University Hospitals Coventry and Warwickshire NHS Trust, Coventry, United Kingdom
| | - Paul Kelly
- Department of Pathology, Belfast Health and Social Care Trust, Belfast, Northern Ireland, United Kingdom
| | - Kay J Park
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, USA
| | - W Glenn McCluggage
- Department of Pathology, Belfast Health and Social Care Trust, Belfast, Northern Ireland, United Kingdom
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5
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Talia KL, Ganesan R. Neuroendocrine Neoplasia of the Female Genital Tract. Surg Pathol Clin 2022; 15:407-420. [PMID: 35715168 DOI: 10.1016/j.path.2022.02.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Neuroendocrine neoplasia is relatively uncommon in the female genital tract (FGT) and occurs at any site, most often the ovary and cervix. A unified dichotomous nomenclature, introduced by the World Health Organization Classification of Tumors in all fifth edition volumes, divides neuroendocrine neoplasms (NENs) into well-differentiated neuroendocrine tumors (NETs) and poorly differentiated neuroendocrine carcinomas (NECs). The term carcinoid tumor is retained in the ovary and represents the commonest FGT NEN. NEC is most common in the cervix and is usually admixed with another human papillomavirus-associated epithelial neoplasm. Despite shared neuroendocrine differentiation, NET and NEC show diverse etiology, morphology, and clinical behavior.
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Affiliation(s)
- Karen L Talia
- Department of Pathology, Royal Women's Hospital and Australian Centre for the Prevention of Cervical Cancer, Melbourne, Victoria, Australia.
| | - Raji Ganesan
- Department of Cellular Pathology, Birmingham Women's Hospital, Birmingham, United Kingdom
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6
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Emerging Therapeutic Concepts and Latest Diagnostic Advancements Regarding Neuroendocrine Tumors of the Gynecologic Tract. MEDICINA (KAUNAS, LITHUANIA) 2021; 57:medicina57121338. [PMID: 34946283 PMCID: PMC8703600 DOI: 10.3390/medicina57121338] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Revised: 11/29/2021] [Accepted: 12/02/2021] [Indexed: 12/21/2022]
Abstract
Neuroendocrine neoplasms (NENs) are particularly rare in all sites of the gynecological tract and include a variety of neoplasms with variable prognosis, dependent on histologic subtype and site of origin. Following the expert consensus proposal of the International Agency for Research on Cancer (IARC), the approach in the latest World Health Organization (WHO) Classification System of the Female Genital Tumours is to use the same terminology for NENs at all body sites. The main concept of this novel classification framework is to align it to all other body sites and make a clear distinction between well-differentiated neuroendocrine tumors (NETs) and poorly differentiated neuroendocrine carcinomas (NECs). The previous WHO Classification System of the Female Genital Tumours featured more or less the same principle, but used the terms ‘low-grade neuroendocrine tumor’ and ‘high-grade neuroendocrine carcinoma’. Regardless of the terminology used, each of these two main categories include two distinct morphological subtypes: NETs are represented by typical and atypical carcinoid and NEC are represented by small cell neuroendocrine carcinoma (SCNEC) and large cell neuroendocrine carcinoma (LCNEC). High-grade NECs, especially small cell neuroendocrine carcinoma tends to be more frequent in the uterine cervix, followed by the endometrium, while low-grade NETs usually occur in the ovary. NENs of the vulva, vagina and fallopian tube are exceptionally rare, with scattered case reports in the scientific literature.
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7
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Koch CA, Fülöp T. Case reports: old-timers and evergreens. J Med Case Rep 2018; 12:355. [PMID: 30477565 PMCID: PMC6257958 DOI: 10.1186/s13256-018-1889-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2018] [Accepted: 10/03/2018] [Indexed: 12/16/2022] Open
Affiliation(s)
- C A Koch
- Medicover GmbH, Berlin, Germany. .,Carl von Ossietzky University of Oldenburg, Oldenburg, Germany. .,Technical University of Dresden, Dresden, Germany. .,University of Louisville, Louisville, KY, USA.
| | - T Fülöp
- Medical University of South Carolina, Charleston, USA
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8
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Abstract
Neuroendocrine neoplasms (NEN) are rare and heterogeneous. Therefore, they often remain unrecognized for many years, causing significant disease burden. We here report on four unusual NEN presentations including a metastatic NEN of the kidney, hypoglycemia caused by an insulin-like growth factor-2-oma (previously called non-islet-cell tumor hypoglycemia), multifocal pheochromocytoma in von Hippel Lindau syndrome, and ileal NEN metastatic to the heart. One could say that each one of these tumors were "black swans" and learning about them will increase further awareness of the spectrum of NEN.
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Affiliation(s)
- Christian A Koch
- Medicover GmbH, Berlin / Hannover, Germany.
- Carl von Ossietzky University of Oldenburg, Oldenburg, Germany.
- Technical University of Dresden, Dresden, Germany.
- University of Louisville, Louisville, KY, USA.
| | - S Petersenn
- ENDOC Center for Endocrine Tumors, Hamburg, Germany
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9
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Pedraza-Arévalo S, Gahete MD, Alors-Pérez E, Luque RM, Castaño JP. Multilayered heterogeneity as an intrinsic hallmark of neuroendocrine tumors. Rev Endocr Metab Disord 2018; 19:179-192. [PMID: 30293213 DOI: 10.1007/s11154-018-9465-0] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Neuroendocrine tumors (NETs) comprise a complex and highly heterogeneous group of neoplasms that can arise all over the body, originating from neuroendocrine cells. NETs are characterized by a general lack of symptoms until they are in advanced phase, and early biomarkers are not as available and useful as required. Heterogeneity is an intrinsic, pivotal feature of NETs that derives from diverse causes and ultimately shapes tumor fate. The different layers that conform NET heterogeneity include a wide range of distinct characteristics, from the mere location of the tumor to its clinical and functional features, and from its cellular properties, to the core signaling and (epi)genetic components defining the molecular signature of the tumor. The importance of this heterogeneity resides in that it translates into a high variability among tumors and, hence, patients, which hinders a more precise diagnosis and prognosis and more efficacious treatment of these diseases. In this review, we highlight the significance of this heterogeneity as an intrinsic hallmark of NETs, its repercussion on clinical approaches and tumor management, and some of the possible factors associated to such heterogeneity, including epigenetic and genetic elements, post-transcriptional regulation, or splicing alterations. Notwithstanding, heterogeneity can also represent a valuable and actionable feature, towards improving medical approaches based on personalized medicine. We conclude that NETs can no longer be viewed as a single disease entity and that their diagnosis, prognosis and treatment must reflect and incorporate this heterogeneity.
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Affiliation(s)
- Sergio Pedraza-Arévalo
- Maimonides Institute for Biomedical Research of Cordoba (IMIBIC), Avenida Menéndez Pidal s/n, Edificio IMIBIC, 14004, Córdoba, Spain
- Department of Cell Biology, Physiology, and Immunology, Universidad de Córdoba, Córdoba, Spain
- Reina Sofia University Hospital, Córdoba, Spain
- CIBER Fisiopatología de la Obesidad y Nutrición (CIBERobn), Córdoba, Spain
- Agrifood Campus of International Excellence (ceiA3), Córdoba, Spain
| | - Manuel D Gahete
- Maimonides Institute for Biomedical Research of Cordoba (IMIBIC), Avenida Menéndez Pidal s/n, Edificio IMIBIC, 14004, Córdoba, Spain
- Department of Cell Biology, Physiology, and Immunology, Universidad de Córdoba, Córdoba, Spain
- Reina Sofia University Hospital, Córdoba, Spain
- CIBER Fisiopatología de la Obesidad y Nutrición (CIBERobn), Córdoba, Spain
- Agrifood Campus of International Excellence (ceiA3), Córdoba, Spain
| | - Emilia Alors-Pérez
- Maimonides Institute for Biomedical Research of Cordoba (IMIBIC), Avenida Menéndez Pidal s/n, Edificio IMIBIC, 14004, Córdoba, Spain
- Department of Cell Biology, Physiology, and Immunology, Universidad de Córdoba, Córdoba, Spain
- Reina Sofia University Hospital, Córdoba, Spain
- CIBER Fisiopatología de la Obesidad y Nutrición (CIBERobn), Córdoba, Spain
- Agrifood Campus of International Excellence (ceiA3), Córdoba, Spain
| | - Raúl M Luque
- Maimonides Institute for Biomedical Research of Cordoba (IMIBIC), Avenida Menéndez Pidal s/n, Edificio IMIBIC, 14004, Córdoba, Spain.
- Department of Cell Biology, Physiology, and Immunology, Universidad de Córdoba, Córdoba, Spain.
- Reina Sofia University Hospital, Córdoba, Spain.
- CIBER Fisiopatología de la Obesidad y Nutrición (CIBERobn), Córdoba, Spain.
- Agrifood Campus of International Excellence (ceiA3), Córdoba, Spain.
| | - Justo P Castaño
- Maimonides Institute for Biomedical Research of Cordoba (IMIBIC), Avenida Menéndez Pidal s/n, Edificio IMIBIC, 14004, Córdoba, Spain.
- Department of Cell Biology, Physiology, and Immunology, Universidad de Córdoba, Córdoba, Spain.
- Reina Sofia University Hospital, Córdoba, Spain.
- CIBER Fisiopatología de la Obesidad y Nutrición (CIBERobn), Córdoba, Spain.
- Agrifood Campus of International Excellence (ceiA3), Córdoba, Spain.
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10
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Tempfer CB, Tischoff I, Dogan A, Hilal Z, Schultheis B, Kern P, Rezniczek GA. Neuroendocrine carcinoma of the cervix: a systematic review of the literature. BMC Cancer 2018; 18:530. [PMID: 29728073 PMCID: PMC5935948 DOI: 10.1186/s12885-018-4447-x] [Citation(s) in RCA: 115] [Impact Index Per Article: 19.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2018] [Accepted: 04/26/2018] [Indexed: 12/05/2022] Open
Abstract
BACKGROUND Neuroendocrine carcinoma of the cervix (NECC) is a rare variant of cervical cancer. The prognosis of women with NECC is poor and there is no standardized therapy for this type of malignancy based on controlled trials. METHODS We performed a systematic literature search of the databases PubMed and Cochrane Central Register of Controlled Trials to identify clinical trials describing the management and outcome of women with NECC. RESULTS Three thousand five hundred thirty-eight cases of NECC in 112 studies were identified. The pooled proportion of NECC among women with cervical cancer was 2303/163470 (1.41%). Small cell NECC, large cell NECC, and other histological subtypes were identified in 80.4, 12.0, and 7.6% of cases, respectively. Early and late stage disease presentation were evenly distributed with 1463 (50.6%) and 1428 (49.4%) cases, respectively. Tumors expressed synaptophysin (424/538 cases; 79%), neuron-specific enolase (196/285 cases; 69%), chromogranin (323/486 cases; 66%), and CD56 (162/267; 61%). The most common primary treatment was radical surgery combined with chemotherapy either as neoadjuvant or adjuvant chemotherapy, described in 42/48 studies. Radiotherapy-based primary treatment schemes in the form of radiotherapy, radiochemotherapy, or radiotherapy with concomitant or followed by chemotherapy were also commonly used (15/48 studies). There is no standard chemotherapy regimen for NECC, but cisplatin/carboplatin and etoposide (EP) was the most commonly used treatment scheme (24/40 studies). Overall, the prognosis of women with NECC was poor with a mean recurrence-free survival of 16 months and a mean overall survival of 40 months. Immune checkpoint inhibitors and targeted agents were reported as being active in three case reports. CONCLUSION NECC is a rare variant of cervical cancer with a poor prognosis. Multimodality treatment with radical surgery and neoadjuvant/adjuvant chemotherapy with cisplatin and etoposide with or without radiotherapy is the mainstay of treatment for early stage disease while chemotherapy with cisplatin and etoposide or topotecan, paclitaxel, and bevacizumab is appropriate for women with locally advanced or recurrent NECC. Immune checkpoint inhibitors may be beneficial, but controlled evidence for their efficacy is lacking.
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Affiliation(s)
- Clemens B. Tempfer
- Department of Obstetrics and Gynecology, Ruhr-Universität Bochum, Bochum, Germany
| | - Iris Tischoff
- Department of Pathology, Ruhr-Universität Bochum, Bochum, Germany
| | - Askin Dogan
- Department of Obstetrics and Gynecology, Ruhr-Universität Bochum, Bochum, Germany
| | - Ziad Hilal
- Department of Obstetrics and Gynecology, Ruhr-Universität Bochum, Bochum, Germany
| | - Beate Schultheis
- Department of Hematology and Oncology, Ruhr-Universität Bochum, Bochum, Germany
| | - Peter Kern
- Department of Obstetrics and Gynecology, St. Elisabeth Hospital, Bochum, Germany
| | - Günther A. Rezniczek
- Department of Obstetrics and Gynecology, Ruhr-Universität Bochum, Bochum, Germany
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11
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Boto AN, Hui P. Hormone producing gynecological tumors: pathologic entities and clinical significance. Expert Rev Endocrinol Metab 2018; 13:9-24. [PMID: 30063444 DOI: 10.1080/17446651.2018.1411799] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
INTRODUCTION Due to their derivation from the cell types involved in gynecologic hormonal networks, many gynecologic tumors may produce hormones. In a normal physiological setting, these hormones are essential for regulating the biology and function of gynecological organs, the ovary and uterus in particular. Overproduction of hormones by the tumor may lead to abnormal clinical manifestations of the patients and spillage of excess hormonal products into the blood. Abnormal elevation of serum hormones may be considered as biomarkers that are important to pathologists and clinicians in making precise tumor diagnoses and likely useful in monitoring the tumor burden/recurrence to guide patient treatment options. This review will discuss gynecologic neoplasms that produce hormonal biomarkers and assess their relevance to pathological diagnosis, evaluation for therapeutic response and monitoring disease progression. AREAS COVERED Studies involving hormonal production by a gynecologic tumor were candidates for inclusion in this review. EXPERT COMMENTARY Serum hormonal biomarkers have clinical utility both in the diagnosis of gynecologic neoplasms and clinical monitoring of treatment efficacy and recurrence.
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Affiliation(s)
- Agedi N Boto
- a Department of Pathology , Yale School of Medicine , New Haven , CT , USA
| | - Pei Hui
- a Department of Pathology , Yale School of Medicine , New Haven , CT , USA
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12
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Castillo JG, Naib T, Zacks JS, Adams DH. Echocardiography in functional midgut neuroendocrine tumors: When and how often. Rev Endocr Metab Disord 2017; 18:411-421. [PMID: 29080935 DOI: 10.1007/s11154-017-9434-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The management of patients with midgut neuroendocrine tumors (MNET) is rapidly evolving. Current preoperative detection rates of primary tumor sites are higher than ever and progression-free survival in patients with already advanced disease is expanding due to the implementation of novel efficacious treatment strategies. This survival benefit may potentially translate into a need for a multidisciplinary approach to an even more heterogenous variety of clinical conditions, among these, carcinoid syndrome (CS) and carcinoid heart disease (CHD). The latter often triggers substantial morbidity and mortality, hence a systematic screening, an accurate diagnosis, as well as effective interventions are critically important. The rarity of the disease has result in a relative lack of statistically powerful evidence, which in turn may have rendered significant variability between practices. In this regard, despite recent guidelines, the optimal follow-up of patients with CHD remain debatable to some authors, perhaps due to the preponderance of certain schools throughout the manuscript. Herein, we present a concise and practical guidance document on clinical screening and echocardiographic surveillance of patients with CHD based on a comprehensive review of the literature, and complemented by our experience at the Center for Carcinoid and Neuroendocrine Tumors at The Mount Sinai Hospital.
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Affiliation(s)
- Javier G Castillo
- Department of Cardiovascular Surgery, Mount Sinai Health System, The Mount Sinai Hospital, 1190 Fifth Avenue, GP2 West, New York, NY, 10029-6574, USA.
- Center for Carcinoid and Neuroendocrine Tumors, Mount Sinai Health System, The Mount Sinai Hospital, New York, NY, USA.
| | - Tara Naib
- Department of Clinical Cardiology, Mount Sinai Health System, The Mount Sinai Hospital, New York, NY, USA
| | - Jerome S Zacks
- Center for Carcinoid and Neuroendocrine Tumors, Mount Sinai Health System, The Mount Sinai Hospital, New York, NY, USA
- Department of Clinical Cardiology, Mount Sinai Health System, The Mount Sinai Hospital, New York, NY, USA
| | - David H Adams
- Department of Cardiovascular Surgery, Mount Sinai Health System, The Mount Sinai Hospital, 1190 Fifth Avenue, GP2 West, New York, NY, 10029-6574, USA
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13
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Koch CA, Petersenn S. Editorial : Neuroendocrine neoplasms. Rev Endocr Metab Disord 2017; 18:379-380. [PMID: 29417306 DOI: 10.1007/s11154-018-9441-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Affiliation(s)
- Christian A Koch
- Medicover Oldenburg MVZ, Oldenburg, Germany.
- Department of Medicine III, Technical University of Dresden, Dresden, Germany.
- University of Louisville, Louisville, KY, USA.
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14
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Papatsimpas G, Samaras I, Theodosiou P, Papacharalampous K, Maragkouli E, Papadopoulos NV, Tsapakidis K, Litos I, Sogka E, Kostopoulou E, Koukoulis GK. A Case of Cervical Carcinoid and Review of the Literature. Case Rep Oncol 2017; 10:737-742. [PMID: 28878659 PMCID: PMC5582492 DOI: 10.1159/000479498] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2017] [Accepted: 07/13/2017] [Indexed: 01/06/2023] Open
Abstract
Uterine cervix carcinoids are distinct neuroendocrine cervical tumors, representing a comparatively small percentage of them. These well-differentiated neoplasms are far less prevalent than small- and large-cell carcinomas, characterized by a more favorable biological course. We report a case of a 43-year-old woman with a nonmetastatic cervical carcinoid, managed with radical hysterectomy. She still remains free of disease. Scant reports in the literature prohibit any reliable prediction of cervical carcinoid prognosis. Thus, prompt identification of the disease and subsequent therapeutic intervention could alter the final outcome.
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Affiliation(s)
| | - Ioannis Samaras
- Department of Medical Oncology, University Hospital of Larissa, Larissa, Greece
| | | | - Konstantina Papacharalampous
- Department of Pathology, Faculty of Medicine, School of Health Sciences, University of Thessalia, Larissa, Greece
| | - Eleni Maragkouli
- Department of Medical Oncology, University Hospital of Larissa, Larissa, Greece
| | | | | | - Ioannis Litos
- Department of Medical Oncology, University Hospital of Larissa, Larissa, Greece
| | - Eleni Sogka
- Department of Medical Oncology, University Hospital of Larissa, Larissa, Greece
| | - Evanthia Kostopoulou
- Department of Pathology, Faculty of Medicine, School of Health Sciences, University of Thessalia, Larissa, Greece
| | - Georgios K Koukoulis
- Department of Pathology, Faculty of Medicine, School of Health Sciences, University of Thessalia, Larissa, Greece
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15
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Neuroendrocrine tumors of the uterine cervix: A therapeutic challenge for gynecologic oncologists. Gynecol Oncol 2017; 144:637-646. [PMID: 28057354 DOI: 10.1016/j.ygyno.2016.12.003] [Citation(s) in RCA: 88] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2016] [Revised: 11/29/2016] [Accepted: 12/05/2016] [Indexed: 11/21/2022]
Abstract
Neuroendocrine tumors (NETs) are aggressive diseases developing from neuroendocrine cells that most frequently involve the gastro-entero-pancreatic tract and the lung, but more rarely are found in almost all body tissues. Limited biological and clinical data are currently available for NETs in uncommon sites, such as female genital tract. NETs represent 0.9% to 1.5% of the tumors of the uterine cervix. They are more likely to have lymph-vascular space invasion and lymph node involvement, and to develop local and distant relapses when compared with the mostly common cervical squamous cell carcinomas or adenocarcinomas. Positive immunostaining for synaptophysin, chromogranin, CD56, and neuron-specific enolase is often detected in cervical NETs . The most recent editions of the World Health Organization Classification of Gynecologic Tract tumors grouped cervical carcinoid tumor and atypical carcinoid tumor into low-grade NETs and cervical small cell neuroendocrine carcinoma and large cell neuroendocrine carcinoma into high-grade NETs. High-risk HPV DNA is detected in almost all cervical high-grade NETs. No treatment guidelines, based on prospective, well-designed clinical trials, are currently available due to the rarity of these tumors. Many authors have reported different multimodality approaches, mainly derived from NETs of the lung. These usually consist in radical hysterectomy followed by adjuvant chemotherapy or concurrent chemoradiation for early stage disease, definitive concurrent chemoradiation sometimes preceded by neoadjuvant chemotherapy and followed by adjuvant chemotherapy for locally advanced disease, and palliative chemotherapy for metastatic disease. In this systematic review, we address the histologic classification of cervical NETs, analyze their pathogenesis and overall prognosis, and evaluate the different treatment modalities described in the literature, in order to offer a possible algorithm that may help the clinicians in diagnosing and treating patients with these uncommon and aggressive malignancies.
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Abstract
Cutaneous flushing is a common presenting complaint in endocrine disorders. The pathophysiology of flushing involves changes in cutaneous blood flow triggered by multiple intrinsic factors that are either related to physiology or disease. Flushing can be divided into episodic or persistent causes. Episodic flushing is mediated by the release of endogenous vasoactive mediators or medications, while persistent flushing results in a fixed facial erythema with telangiectasia and cyanosis due to slow-flowing deoxygenated blood in large cutaneous blood vessels. The differential diagnosis of cutaneous flushing in neuroendocrine disorders is limited, yet encompasses a broad spectrum of benign and malignant entities, including carcinoid syndrome, pheochromocytoma, Cushing syndrome, medullary thyroid cancer, and pancreatic neuroendocrine tumors. In this review, we provide a concise and up-to-date discussion on the differential diagnosis and approach of flushing in neuroendocrinology.
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Affiliation(s)
- Fady Hannah-Shmouni
- Section on Endocrinology & Genetics (SEGEN), Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), National Institutes of Health (NIH), Bethesda, MD, 20892, USA.
| | - Constantine A Stratakis
- Section on Endocrinology & Genetics (SEGEN), Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), National Institutes of Health (NIH), Bethesda, MD, 20892, USA
| | - Christian A Koch
- Division of Endocrinology, University of Mississippi Medical Center, Jackson, MS, USA.
- G.V. (Sonny) Montgomery VA Medical Center, Jackson, MS, USA.
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Yasuoka T, Hashimoto H, Hamada K, Fujioka T, Nawa A. Atypical carcinoid of the uterine cervix with aggressive clinical behavior: A case report. GYNECOLOGIC ONCOLOGY CASE REPORTS 2013; 7:4-6. [PMID: 24624319 PMCID: PMC3895285 DOI: 10.1016/j.gynor.2013.10.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/15/2013] [Accepted: 10/15/2013] [Indexed: 10/26/2022]
Abstract
•We herein report a case of a 44-year-old Japanese woman diagnosed with stage IB1 atypical carcinoid of the uterine cervix.•After radical hysterectomy, she developed recurrence with aggressive clinical behavior, resistance to CPT-11 + cisplatin and paclitaxel + CBDCA chemotherapy.
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Affiliation(s)
- Toshiaki Yasuoka
- Department of Obstetrics and Gynecology, Ehime University, Graduate School of Medicine, Japan
| | - Hisashi Hashimoto
- Department of Obstetrics and Gynecology, Ehime University, Graduate School of Medicine, Japan
| | - Katsuyuki Hamada
- Department of Obstetrics and Gynecology, Ehime University, Graduate School of Medicine, Japan
| | - Toru Fujioka
- Department of Obstetrics and Gynecology, Ehime University, Graduate School of Medicine, Japan
| | - Akihiro Nawa
- Department of Obstetrics and Gynecology, Ehime University, Graduate School of Medicine, Japan
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Mashoori N, Rabani AH, Kazemeini AR. Ectopic Cushing's syndrome due to a mesenteric neuroendocrine tumour. Ann R Coll Surg Engl 2013; 94:e251-3. [PMID: 23131217 PMCID: PMC3954308 DOI: 10.1308/003588412x13373405387492] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
INTRODUCTION Neuroendocrine tumours (NETs) are tumours that commonly involve the gastrointestinal system. Common primary sites in the gastrointestinal system include the small intestine, appendix, rectum and pancreas. Mesenteric NETs are extremely rare entities and are sparsely reported in the literature. CASE HISTORY We report the case of a 62-year-old woman with ectopic Cushing’s syndrome due to excessive adrenocorticotropic hormone secretion by a primary mesenteric tumour in the small intestine and its liver metastases. CONCLUSIONS Although rare, the mesentery can be a primary site for NETs. It can cause similar symptoms and require similar treatment options. Tumour resection and debulking are acceptable ways to improve both the survival and symptoms.
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Affiliation(s)
- N Mashoori
- Imam Khomeini Hospital, Dr Gharib Street, Tehran, Iran.
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Kajiwara H, Hirabayashi K, Miyazawa M, Nakamura N, Hirasawa T, Muramatsu T, Mikami M, Yasuda M, Osamura RY. Immunohistochemical expression of somatostatin type 2A receptor in neuroendocrine carcinoma of uterine cervix. Arch Gynecol Obstet 2008; 279:521-5. [DOI: 10.1007/s00404-008-0760-y] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2008] [Accepted: 08/07/2008] [Indexed: 11/21/2022]
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Fasshauer M, Lincke T, Witzigmann H, Kluge R, Tannapfel A, Moche M, Buchfelder M, Petersenn S, Kratzsch J, Paschke R, Koch CA. Ectopic Cushing' syndrome caused by a neuroendocrine carcinoma of the mesentery. BMC Cancer 2006; 6:108. [PMID: 16643652 PMCID: PMC1464147 DOI: 10.1186/1471-2407-6-108] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2006] [Accepted: 04/27/2006] [Indexed: 12/05/2022] Open
Abstract
Background ACTH overproduction within the pituitary gland or ectopically leads to hypercortisolism. Here, we report the first case of Cushing' syndrome caused by an ectopic ACTH-secreting neuroendocrine carcinoma of the mesentery. Moreover, diagnostic procedures and pitfalls associated with ectopic ACTH-secreting tumors are demonstrated and discussed. Case presentation A 41 year-old man presented with clinical features and biochemical tests suggestive of ectopic Cushing's syndrome. First, subtotal thyroidectomy was performed without remission of hypercortisolism, because an octreotide scan showed increased activity in the left thyroid gland and an ultrasound revealed nodules in both thyroid lobes one of which was autonomous. In addition, the patient had a 3 mm hypoenhancing lesion of the neurohypophysis and a 1 cm large adrenal tumor. Surgical removal of the pituitary lesion within the posterior lobe did not improve hypercortisolism and we continued to treat the patient with metyrapone to block cortisol production. At 18-months follow-up from initial presentation, we detected an ACTH-producing neuroendocrine carcinoma of the mesentery by using a combination of octreotide scan, computed tomography scan, and positron emission tomography. Intraoperatively, use of a gamma probe after administration of radiolabeled 111In-pentetreotide helped identify the mesenteric neuroendocrine tumor. After removal of this carcinoma, the patient improved clinically. Laboratory testing confirmed remission of hypercortisolism. An octreotide scan 7 months after surgery showed normal results. Conclusion This case underscores the diagnostic challenge in identifying an ectopic ACTH-producing tumor and the pluripotency of cells, in this case of mesenteric cells that can start producing and secreting ACTH. It thereby helps elucidate the pathogenesis of neuroendocrine tumors. This case also suggests that patients with ectopic Cushing's syndrome and an octreotide scan positive in atypical locations may benefit from explorative radioguided surgery using 111In-pentetreotide and a gamma probe.
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Affiliation(s)
- Mathias Fasshauer
- Division of Endocrinology and Nephrology, University of Leipzig, Philipp-Rosenthalstr. 27, 04103 Leipzig, Germany
| | - Thomas Lincke
- Department of Nuclear Medicine, University of Leipzig, Liebigstr., 04103 Leipzig, Germany
| | - Helmut Witzigmann
- Department of Surgery, University of Leipzig, Liebigstr., 04103 Leipzig, Germany
| | - Regine Kluge
- Department of Nuclear Medicine, University of Leipzig, Liebigstr., 04103 Leipzig, Germany
| | - Andrea Tannapfel
- Institute of Pathology, Ruhr-Universität Bochum an den BG Kliniken Bergmannsheil, Bürkle-de-la-Camp-Platz 1, 44 789 Bochum, Germany
| | - Michael Moche
- Department of Radiology, University of Leipzig, Liebigstr., 04103 Leipzig, Germany
| | - Michael Buchfelder
- Department of Neurosurgery, Friedrich-Alexander University of Erlangen-Nuremberg, Schwabachanlage, Erlangen, Germany
| | - Stephan Petersenn
- Division of Endocrinology, Universität Duisburg-Essen, Hufelandstr. 55, 45122 Essen, Germany
| | - Juergen Kratzsch
- Institute of Laboratory Medicine, Clinical Chemistry, and Molecular Diagnostics, University of Leipzig, Paul-List-Str., 04103 Leipzig, Germany
| | - Ralf Paschke
- Division of Endocrinology and Nephrology, University of Leipzig, Philipp-Rosenthalstr. 27, 04103 Leipzig, Germany
| | - Christian A Koch
- Division of Endocrinology and Nephrology, University of Leipzig, Philipp-Rosenthalstr. 27, 04103 Leipzig, Germany
- Division of Endocrinology, University of Mississippi Medical Center, 2500 N State Str, Jackson, MS 39216, USA
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Modlin IM, Shapiro MD, Kidd M. An analysis of rare carcinoid tumors: clarifying these clinical conundrums. World J Surg 2005; 29:92-101. [PMID: 15599742 DOI: 10.1007/s00268-004-7443-z] [Citation(s) in RCA: 107] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Carcinoid tumors are distinct neuroendocrine neoplasms with characteristic histological, clinical, and biological properties. Though commonly associated with the gastrointestinal tract and bronchopulmonary system, a substantial number of these tumors originate in less common anatomical sites and can range from indolent, unrecognized entities to highly active, metastatic secretory tumors. Their presentation within unfamiliar locations often results in clinical confusion, and they persist as unrecognized lesions, subjecting patients to delayed, inappropriate, or ineffective treatment. The authors reviewed 13,715 carcinoid tumors identified by three consecutive registries of the National Cancer Institute (NCI) from 1950 to 1999, focusing on the anatomic sites accounting for less than one percent of all carcinoids. In addition, data from the world's literature published on carcinoid tumors within these particular anatomic locations were then analyzed with respect to incidence, clinical presentation, symptoms, diagnostic evaluation, microscopic and immunohistochemical findings, treatment strategies, and prognosis. The primary organs in which carcinoids are most commonly mistaken for some of the more conspicuous endemic tumors include the esophagus, pancreas, liver, biliary tract, gallbladder, and Meckel's diverticulum, as well as within the pelvic and otolaryngeal organs and the breast. In general, the highest proportion of "rare" carcinoids was identified in the gastrointestinal (GI) tract, with the ovary as the single most affected extra-GI site. Tumors with the worst prognosis were those that involved the pancreas (37.5%: 5-year survival) and those in the cervix (12-33%: 3-year survival). While gastrointestinal carcinoids have become a more recognized entity and thus more amenable to identification, similar lesions are often not considered in other sites and have often either been overlooked or misdiagnosed. Widespread reports of their occurrence in rare locations warrants attention. The diminution of the likelihood of inadvertently neglecting these often benign, indolent neoplasms that are well known to metastasize if unaddressed would represent an important advance. Familiarity with such unusual sites of origin will facilitate appropriate recognition and characterization of such tumors, allowing for timely intervention.
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Affiliation(s)
- Irvin M Modlin
- Gastric Pathobiology Research Group, Yale University School of Medicine, 333 Cedar Street, P.O. Box 208062, New Haven, CT 06520-8062, USA.
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Miehle K, Tannapfel A, Lamesch P, Borte G, Schenker E, Kluge R, Ott RA, Wiechmann V, Koch M, Kassahun W, Paschke R, Koch CA. Pancreatic neuroendocrine tumor with ectopic adrenocorticotropin production upon second recurrence. J Clin Endocrinol Metab 2004; 89:3731-6. [PMID: 15292297 DOI: 10.1210/jc.2003-032164] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
We present a 54-yr-old woman with ectopic corticotropin syndrome caused by a neuroendocrine tumor of the pancreas. At initial presentation, the patient suffered from diarrhea, heartburn, and nonspecific abdominal pain. There was no evidence of Cushing's syndrome. A neuroendocrine tumor in the head of the pancreas with metastases into peripancreatic lymph nodes was diagnosed and completely resected. Fourteen months later, abdominal computed tomography and scintigraphy with (111)In-labeled octreotide suggested relapse of the tumor. The patient again had no evidence of Cushing's syndrome. A second in toto tumor resection was performed. Another 8 months later, the patient developed forgetfulness, depressive episodes, muscle weakness, new-onset hypertension, hypokalemia, plethora, diabetes mellitus, polyuria, and weight loss. Endocrine testing suggested a source of ectopic ACTH production. An octreotide scan showed an intense uptake ventromedial of the left kidney, an area that showed a mass lateral of the superior mesenteric artery on abdominal magnetic resonance imaging. A complete pancreatectomy with splenectomy and left-sided adrenalectomy were performed. At this second relapse, this neuroendocrine tumor clinically had changed its hormonal profile. Immunohistochemically, in contrast to primary tumor and first relapse, we found strong immunostaining for ACTH in tumor cells of the second relapse and a MIB-1 index greater than 20%. To our knowledge, this is the first report describing a pancreatic neuroendocrine tumor that started to secrete ACTH de novo at the time of the second relapse after two former complete tumor resections. This case underscores the pluripotency of neuroendocrine tumor cells and the importance of keeping in mind a possible shift in hormone production during tumor evolution and progression.
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Uwaifo GI, Koch CA, Hirshberg B, Chen CC, Hartzband P, Nieman LK, Pacak K. Is there a therapeutic role for octreotide in patients with ectopic Cushing's syndrome? J Endocrinol Invest 2003; 26:710-7. [PMID: 14669823 DOI: 10.1007/bf03347351] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Cushing's syndrome (CS) due to ectopic ACTH secretion (EAS) has a high morbidity and mortality, because of the underlying tumor and the sequelae of severe hypercortisolemia. Therefore, rapid treatment of ectopic CS is mandatory. Scintigraphy shows that up to 80% of ectopic ACTH-producing tumors have somatostatin receptors. While this suggests that somatostatin analogs may reduce ACTH production and treat patients with EAS, the therapeutic role of these agents is still evolving. Here we demonstrate the spectrum of responses to octreotide therapy in 3 patients with EAS. Diagnostic imaging with the 111In-pentetreotide scan did not predict the therapeutic response to octreotide. Two patients with positive somatostatin receptor scintigraphy failed to respond to octreotide, while one with a negative scan reached eucortisolemia on a maintenance dose of 75 microg octreotide twice daily or octreotide LAR 30 mg per month. We conclude that octreotide is not a first line agent to control hypercortisolemia but may be a useful agent when other inhibitors of steroidogenesis fail or parenteral administration is required. Before therapy an octreotide challenge test may predict therapeutic response. Cortisol levels should be monitored regularly on somatostatin analog therapy, because of its unpredictable long-term pharmacodynamic profile.
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Affiliation(s)
- G I Uwaifo
- Developmental Endocrinology Branch, NICHD, National Institutes of Health, Bethesda, MD, USA
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Koch CA, Vortmeyer AO, Zhuang Z, Brouwers FM, Pacak K. New insights into the genetics of familial chromaffin cell tumors. Ann N Y Acad Sci 2002; 970:11-28. [PMID: 12381538 DOI: 10.1111/j.1749-6632.2002.tb04409.x] [Citation(s) in RCA: 41] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
We review genetic aspects and recent advances in our understanding of the molecular pathogenesis of familial chromaffin cell tumors (pheochromocytoma, paraganglioma). About 10 percent of pheochromocytomas are familial and occur as part of multiple endocrine neoplasia type 2 (MEN 2), von Hippel-Lindau (VHL) disease, and neurofibromatosis type 1 (NF 1). A subset of paragangliomas, tumors that can also produce and secrete catecholamines, are also familial and occur in patients with germline mutations in genes that encode subunits of the mitochondrial complex II. The precise molecular mechanisms underlying the pathogenesis of chromaffin cell tumors remain widely unknown, although recent studies in hereditary tumors help elucidate their development. In MEN 2, overrepresentation of mutant RET in selected adrenomedullary cells may be an important mechanism in initiating the formation of a pheochromocytoma. In VHL disease, pheochromocytoma development appears to occur according to Knudson's two-hit model, a VHL germline mutation and wildtype allelic deletion. Tumorigenesis of NF1-associated pheochromocytomas remains unknown, as does tumor formation (i.e., carotid body tumor) in patients with germline mutations in SDHB, SDHC, and SDHD, genes that encode subunits of the mitochondrial complex II, the smallest complex in the respiratory chain. Many genetic alterations have been found in sporadic chromaffin cell tumors. However, at present such genetic changes are difficult to place into context with regard to tumor formation and progression.
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Affiliation(s)
- Christian A Koch
- Pediatric and Reproductive Endocrinology Branch, National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD 20892, USA.
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Singh R, Bibbo M, Cunnane MF, Carlson JA, de Papp AE. Metastatic cervical carcinoma with ectopic calcitonin production presenting as a thyroid mass. Endocr Pract 2002; 8:50-3. [PMID: 11939761 DOI: 10.4158/ep.8.1.50] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
OBJECTIVE To describe a case of cervical carcinoma metastatic to the thyroid in association with ectopic production of calcitonin. METHODS We present the medical history, clinical findings, and laboratory results in a 38-year-old woman with a neck mass, and we discuss the frequency of metastatic involvement of the thyroid. RESULTS A 38-year-old woman was referred for evaluation of an enlarging neck mass. She had undergone radical hysterectomy and irradiation for invasive cervical carcinoma 1 year earlier. Laboratory investigation showed only mild anemia, high plasma bicarbonate concentration, increased alkaline phosphatase, and mild hypoalbuminemia. Computed tomography of the abdomen and pelvis disclosed multiple lesions in the liver. Fine-needle aspiration biopsy of the thyroid mass revealed a poorly differentiated carcinoma, which stained negative for thyroglobulin but positive for several neuroendocrine tumor markers. Measurement of serum calcitonin showed a dramatically increased level (5,000 pg/mL). The same histologic and immunochemical profile was found in a liver biopsy specimen and in the original cervical tumor. Metastatic neuroendocrine cervical carcinoma was diagnosed, and the patient died 6 months later despite four cycles of chemotherapy. CONCLUSION To the best of our knowledge, this is the first case report of a neuroendocrine cervical carcinoma manifesting as a palpable thyroid mass, associated with ectopic production of calcitonin.
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Affiliation(s)
- Reetu Singh
- Division of Endocrinology, Department of Medicine, Thomas Jefferson University, Philadelphia, Pennsylvania 19107, USA
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