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Serum chromogranin A

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https://www.readbyqxmd.com/read/29729229/triple-test-with-tumor-markers-cyfra-21-1-he4-and-progrp-might-contribute-to-diagnosis-and-subtyping-of-lung-cancer
#1
Elif Tugce Korkmaz, Deniz Koksal, Funda Aksu, Z Gunnur Dikmen, Duygu Icen, Emin Maden, Sevgen Onder, Filiz Akbiyik, Salih Emri
BACKGROUND AND AIM: Early diagnosis and histological subtyping are important issues in the management of patients with lung cancer (LC). The aim of this study is to investigate the diagnostic value of a panel of serum tumor markers in newly diagnosed patients with LC. METHODS: Venous blood samples were collected from 99 patients with LC (42 adenocarcinoma, 35 squamous, and 22 small cell carcinoma) and 30 patients with benign lung disease. Progastrin releasing peptide (ProGRP), squamous cell carcinoma antigen (SCCAg), cytokeratin 19-fragments (CYFRA 21...
May 2, 2018: Clinical Biochemistry
https://www.readbyqxmd.com/read/29724794/prognostic-value-of-chromogranin-a-in-patients-with-get-nen-in-the-pancreas-and-the-small-intestine
#2
Malgorzata Fuksiewicz, Maria Kowalska, Agnieska Kolasinska-Cwikla, Jaroslaw B Cwikla, Lukasz Sawicki, Katarzyna Roszkowska-Purska, Joanna Drygiel, Beata Kotowicz
The aim of this study was to evaluate the clinical usefulness of the chromogranin A determination in patients with NENs of the digestive system and to analyse the association between concentration of the marker and PFS and OS. Serum concentrations of CgA were determined before the treatment in 131 patients with NENs, including patients with tumours located in the pancreas, the small intestine, caecum, appendix and in the colon. No significant associations were identified in CgA concentrations between the control group and patients with NENs in appendix and colon...
May 3, 2018: Endocrine Connections
https://www.readbyqxmd.com/read/29659395/loss-of-psma-expression-in-non-neuroendocrine-dedifferentiated-acinar-prostate-cancer
#3
Peter Bronsert, Kathrin Reichel, Juri Ruf
The introduction of tracers targeting the prostate-specific membrane antigen (PSMA) has revolutionized PET imaging of acinar prostate adenocarcinoma. In general, an increasing PSMA expression is assumed with increasing dedifferentiation. Whereas loss of PSMA expression has been reported in case of neuroendocrine dedifferentiation, we present a patient with acinar prostate adenocarcinoma with a loss of PSMA expression after chemotherapy on PET/CT and in histological and immunohistochemical analyses. All tissue samples indicated the retention of acinar features but no expression of neuroendocrine markers (NSE, synaptophysin, chromogranin, and CD56), corresponding to nonelevated serum NSE...
April 13, 2018: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/29524315/serum-calcitonin-negative-mixed-medullary-follicular-carcinoma-initially-diagnosed-as-medullary-thyroid-carcinoma-by-fine-needle-aspiration-cytology-a-case-report-and-review-of-the-literatures
#4
Yonghua Liu, Lin Yuan, Daohua Yang, Yubiao Jin
Medullary thyroid carcinoma (MTC) is potentially lethal. A prompt and accurate diagnosis is the prerequisite for the treatment of MTC. Fine-needle aspiration (FNA) is a reliable diagnostic tool in the assessment of thyroid nodules. However, cytologic assessment of MTC based on FNA has several drawbacks due to morphological variants. We present a case of MTC diagnosed through FNA cytology, which was eventually histologically confirmed as a mixed medullary-follicular carcinoma with negative serum calcitonin expression...
March 10, 2018: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/29511413/a-rare-cause-of-abdominal-pain-and-mass-in-an-18-year-old-patient-a-diagnostic-dilemma
#5
Hassan Tariq, Muhammad Umar Kamal, Vamshidhar Vootla, Mohamed ElZaeedi, Masooma Niazi, Brian Gilchrist, Ariyo Ihimoyan, Anil Dev, Sridhar Chilimuri
We present a case of an 18-year-old male who presented with complains of abdominal pain, nausea and vomiting for 2 years. An esophagogastroduodenoscopy (EGD) revealed a 3 mm nodule on the lesser curvature of the stomach and prominent gastric folds. Biopsy of the nodule revealed a well-differentiated neuroendocrine tumor (NET) in lamina prop with focal extension into muscularis mucosa consistent with a gastric carcinoid. Tumor cells stained with neuron-specific enolase (NSE), chromogranin and synaptophysin only...
February 2018: Gastroenterology Research
https://www.readbyqxmd.com/read/29471608/-pancreatic-neuroendocrine-tumor-presenting-as-acute-pancreatitis
#6
Minjeong Kim, Jin Myung Park, Sung Joon Lee, Chang Don Kang, MyungHo Kang, Ji Hyun Kim, Seungkoo Lee, Seong Whi Cho
We report a case of acute pancreatitis secondary to pancreatic neuroendocrine tumor. A 46-year old man presented with upper abdominal pain. The serum amylase and lipase were elevated. Abdominal computed tomography (CT) and magnetic resonance cholangiopancreatography revealed a 1.7 cm sized mass at the pancreas body with a dilatation of the upstream pancreatic duct and mild infiltrations of peripancreatic fat. An endoscopic ultrasound-guided fine needle biopsy was performed for the pancreatic mass, but only necrotic tissue was observed on the pathologic examination...
February 25, 2018: Korean Journal of Gastroenterology, Taehan Sohwagi Hakhoe Chi
https://www.readbyqxmd.com/read/29440231/-ex-vivo-activity-of-cytotoxic-drugs-and-targeted-agents-in-small-intestinal-neuroendocrine-tumors
#7
Kosmas Daskalakis, Olov Norlén, Andreas Karakatsanis, Per Hellman, Rolf Larsson, Peter Nygren, Peter Stålberg
Small intestinal neuroendocrine tumors (SI-NETs) are generally considered resistant to systemic treatment. To date, predictive markers for drug activity are lacking. Tumor samples from 27 patients with SI-NETs were analyzed ex vivo for sensitivity to a panel of cytotoxic drugs and targeted agents using a short-term total cell kill assay. Samples of renal cancer, colorectal cancer (CRC), ovarian cancer and chronic lymphocytic leukemia (CLL) were included for comparison. For the SI-NET subset, drug sensitivity was analyzed in relation to clinicopathological variables and pre-treatment biomarkers...
April 2018: Endocrine-related Cancer
https://www.readbyqxmd.com/read/29386066/carcinoid-heart-disease-revealed-by-cyanosis-with-both-right-and-left-valvular-involvement-a-case-report
#8
Khadija Khay, Salim Arous, Tarik Bentaoune, Abdenasser Drighil, Rachida Habbal
BACKGROUND: Carcinoid heart disease is a frequent complication of carcinoid syndrome. It is related to the release by the carcinoid tumor and/or its metastases of bioactive substances such as serotonin. It is characterized by right-sided valvular involvement and can lead to right-sided heart failure. It is a prognostic factor of carcinoid syndrome. CASE PRESENTATION: We report the case of a 53-year-old African woman with an endocrine tumor of her small intestine complicated by carcinoid heart disease, revealed by right-sided heart failure...
January 31, 2018: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/29361984/changes-in-biodistribution-on-68-ga-dota-octreotate-pet-ct-after-long-acting-somatostatin-analogue-therapy-in-neuroendocrine-tumour-patients-may-result-in-pseudoprogression
#9
Martin H Cherk, Grace Kong, Rodney J Hicks, Michael S Hofman
BACKGROUND: To evaluate the effects of long-acting somatostatin analogue (SSA) therapy on 68 Ga-DOTA-octreotate (GaTate) uptake at physiological and metastatic sites in neuroendocrine tumour (NET) patients. METHODS: Twenty-one patients who underwent GaTate PET/CT before and after commencement of SSA therapy were reviewed. Maximum standardized uptake values (SUVmax) were measured in normal organs. Changes in uptake of 49 metastatic lesions in 12 patients with stable disease were also compared...
January 24, 2018: Cancer Imaging: the Official Publication of the International Cancer Imaging Society
https://www.readbyqxmd.com/read/29354884/quantitative-evaluation-of-dental-anxiety-indicators-in-the-serum-and-saliva-samples-of-children-treated-under-general-anesthesia
#10
Sinem Yıldırım, Meltem Bakkal, Huri Bulut, Sahabettin Selek
OBJECTIVES: Dental anxiety level has been previously associated with oral health status. Since general anesthesia (GA) allows dental treatments to be performed in anxious children with a high number of caries, we aimed to evaluate the dental anxiety levels of these children before and after dental treatments performed under GA. MATERIALS AND METHODS: Thirty-eight children with high anxiety aged between 35 and 72 months who required multiple dental treatments to be performed under GA were included in the study...
January 21, 2018: Clinical Oral Investigations
https://www.readbyqxmd.com/read/29324681/ppoma-review-epidemiology-aetiopathogenesis-prognosis-and-treatment
#11
REVIEW
Thais Ligiero Braga, Ralph Santos-Oliveira
Generally, pancreatic polypeptide-secreting tumor of the distal pancreas (PPoma) is classified as a rare tumor, and may occur sporadically or be associated in families or with multiple endocrine neoplasia type 1 (NEM 1). It grows slowly, reaching large dimensions at the time of diagnosis and the symptomatology is fundamentally due to the mass effect, causing either non-specific abdominal pain or symptoms suggestive of obstruction of the pancreatic or biliary duct. Therefore, when detected, they are usually malignant, with metastases mainly in the liver...
January 11, 2018: Diseases (Basel)
https://www.readbyqxmd.com/read/29312648/predicting-clinically-significant-prostate-cancer-based-on-pre-operative-patient-profile-and-serum-biomarkers
#12
Izak Faiena, Sinae Kim, Nicholas Farber, Young Suk Kwon, Brian Shinder, Neal Patel, Amirali H Salmasi, Thomas Jang, Eric A Singer, Wun-Jae Kim, Isaac Y Kim
Previous studies have reported association of multiple preoperative factors predicting clinically significant prostate cancer with varying results. We assessed the predictive model using a combination of hormone profile, serum biomarkers, and patient characteristics in order to improve the accuracy of risk stratification of patients with prostate cancer. Data on 224 patients from our prostatectomy database were queried. Demographic characteristics, including age, body mass index (BMI), clinical stage, clinical Gleason score (GS) as well as serum biomarkers, such as prostate-specific antigen (PSA), parathyroid hormone (PTH), calcium (Ca), prostate acid phosphatase (PAP), testosterone, and chromogranin A (CgA), were used to build a predictive model of clinically significant prostate cancer using logistic regression methods...
December 12, 2017: Oncotarget
https://www.readbyqxmd.com/read/29290942/identification-of-novel-serum-autoantibodies-against-eid3-in-non-functional-pancreatic-neuroendocrine-tumors
#13
Koji Hontani, Takahiro Tsuchikawa, Takaki Hiwasa, Toru Nakamura, Takashi Ueno, Toshihiro Kushibiki, Mizuna Takahashi, Kazuho Inoko, Hironobu Takano, Satoshi Takeuchi, Hirotoshi Dosaka-Akita, Masaki Kuwatani, Naoya Sakamoto, Yutaka Hatanaka, Tomoko Mitsuhashi, Hideaki Shimada, Toshiaki Shichinohe, Satoshi Hirano
Pancreatic neuroendocrine tumors (pNETs) are relatively rare heterogenous tumors, comprising only 1-2% of all pancreatic neoplasms. The majority of pNETs are non-functional tumors (NF-pNETs) that do not produce hormones, and as such, do not cause any hormone-related symptoms. As a result, these tumors are often diagnosed at an advanced stage because patients do not present with specific symptoms. Although tumor markers are used to help diagnosis and predict some types of cancers, chromogranin A, a widely used tumor marker of pNETs, has significant limitations...
December 5, 2017: Oncotarget
https://www.readbyqxmd.com/read/29210711/an-autopsy-case-of-sudden-death-in-neurofibromatosis-type-1-with-pheochromocytoma-and-myocarditis
#14
Masataka Takamiya, Hisae Niitsu, Kiyoshi Saigusa
An autopsy case of sudden death in a 33-year-old man with neurofibromatosis type 1 (von Recklinghausen disease), pheochromocytoma, and myocarditis is reported. The decedent was found in his bedroom in cardiopulmonary arrest. Polypoid, elastic dermal papules on the neck, chest, abdomen, and back, and flat dark-brown macules on the chest and abdomen were observed. Flat, ovoid, dark-brown freckles were present in both axillae. Examination of the right adrenal gland revealed a tumor measuring 5 cm × 5 cm × 3 cm...
March 2018: American Journal of Forensic Medicine and Pathology
https://www.readbyqxmd.com/read/29195227/catestatin-vasostatin-cortisol-and-visual-analog-scale-scoring-for-stress-assessment-in-healthy-dogs
#15
T Srithunyarat, R Hagman, O V Höglund, M Stridsberg, J Hanson, A S Lagerstedt, A Pettersson
The neuroendocrine glycoprotein chromogranin A is a useful biomarker for stress in humans. Chromogranin A epitopes catestatin and vasostatin can be measured in dogs using radioimmunoassays. The objective of this study was to evaluate catestatin and vasostatin as canine stress biomarkers in a clinical setting. Blood and saliva were collected from 33 healthy dogs that were familiar with sampling procedures and the animal hospital environment (control group) and 30 healthy dogs that were unacquainted (stress group)...
April 2018: Research in Veterinary Science
https://www.readbyqxmd.com/read/29191920/combined-test-of-serum-cga-and-nse-improved-the-power-of-prognosis-prediction-of-nf-pnets
#16
Yang Lv, Xu Han, Chunyan Zhang, Yuan Fang, Ning Pu, Yuan Ji, Dansong Wang, Xu Xuefeng, Wenhui Lou
PURPOSE: Chromogranin A (CgA) and neuron-specific enolase (NSE) are important markers for neuroendocrine tumors; however, the clinical value of combining these markers has not been well studied. In this study, we investigated the utility of each marker individually and in combination for patients with nonfunctional pancreatic neuroendocrine tumors (NF-pNETs). PATIENTS AND METHODS: In this study, NF-pNET patients and controls were recruited from December 2011 to March 2016; 784 serum samples from peripheral vein were collected...
January 2018: Endocrine Connections
https://www.readbyqxmd.com/read/29155309/prognostic-utility-of-total-68-ga-dotatate-avid-tumor-volume-in-patients-with-neuroendocrine-tumors
#17
Amit Tirosh, Georgios Z Papadakis, Corina Millo, Dima Hammoud, Samira M Sadowski, Peter Herscovitch, Karel Pacak, Stephen J Marx, Lily Yang, Pavel Nockel, Jasmine Shell, Patience Green, Xavier M Keutgen, Dhaval Patel, Naris Nilubol, Electron Kebebew
BACKGROUND & AIMS: Survival times vary among patients with neuroendocrine tumors (NETs) - even among those with the same site, stage, and grade of primary tumor. This makes it difficult to select treatment for patients with unresectable NETs because some patients can survive decades without treatment. 68 Gallium-DOTATATE positron emission tomography with computed tomography (68 Ga-DOTATATE PET/CT) is a sensitive imaging technique for detection of NETs. We investigated the prognostic accuracy of 68 Ga-DOTATATE PET/CT-based analysis of tumor volume in patients with NETs...
March 2018: Gastroenterology
https://www.readbyqxmd.com/read/29102861/an-isolated-metachronous-metastasis-to-the-adrenal-gland-from-a-pancreatic-neuroendocrine-tumor-a-case-report
#18
Yasunaru Sakuma, Naohiro Sata, Kazuhiro Endo, Yoshikazu Yasuda, Shinichiro Yokota, Yoshinori Hosoya, Atsushi Shimizu, Hirofumi Fujii, Daisuke Matsubara, Noriyoshi Fukushima, Shoko Asakawa, Yuuki Kawarai Shimada, Chieko Kawarai Lefor, Alan Kawarai Lefor
INTRODUCTION: Pancreatic neuroendocrine tumors are rare. Treatment includes aggressive local management of the primary lesion and metastases, and systemic somatostatin. This is the first report of an isolated metachronous metastasis to the adrenal gland from a pancreatic neuroendocrine tumor that presented 90 months after the primary tumor. PRESENTATION OF CASE: The patient presented as a 53yo man with a left upper quadrant mass and synchronous metastases to the spleen and liver (pancreatic neuroendocrine tumor T4N0M1, Stage IV), which were resected (CD56-, synaptophysin+, chromogranin+, Ki-67<1%)...
2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/29099942/phase-1-study-of-high-specific-activity-i-131-mibg-for-metastatic-and-or-recurrent-pheochromocytoma-or-paraganglioma
#19
Richard B Noto, Daniel A Pryma, Jessica Jensen, Tess Lin, Nancy Stambler, Thomas Strack, Vivien Wong, Stanley J Goldsmith
Context: No therapies are approved for the treatment of metastatic and/or recurrent pheochromocytoma or paraganglioma (PPGL) in the United States. Objective: To determine the maximum tolerated dose (MTD) of high-specific-activity I-131 meta-iodobenzylguanidine (MIBG) for the treatment of metastatic and/or recurrent PPGL. Design: Phase 1, dose-escalating study to determine the MTD via a standard 3 + 3 design, escalating by 37 MBq/kg starting at 222 MBq/kg...
January 1, 2018: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/29063171/-neuroendocrine-prostate-cancer
#20
S Tritschler, R Erdelkamp, C Stief, M Hentrich
Neuroendocrine prostate cancer (NEPC) mostly occurs as a treatment-emergent adaptive response under the pressure of intensive androgen deprivation treatment (t-NEPC). Approximately 30-40% of patients with metastatic castration-resistant prostate cancer (mCRPC) also have neuroendocrine involvement. In contrast primary small cell prostate cancer is very rare (<1%). A t‑NEPC should be clinically suspected in patients who have particularly aggressive mCRPC but a disproportionately low prostate-specific antigen (PSA) level and elevated neuroendocrine tumor markers, such as chromogranin A and neuron-specific enolase...
November 2017: Der Urologe. Ausg. A
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