Abstract
Introduction: Neuroendocrine tumors (NETs) exhibit a wide range of clinical presentations, including the production of various hormones. Calcitonin, a sensitive marker for medullary thyroid cancer (MTC), is nonspecific and may be elevated in extra-thyroidal NETs.
Case Report: We present the case of a 64-year-old female patient who underwent total thyroidectomy due to a nodule in the isthmus, with a fine-needle aspiration biopsy indicating follicular neoplasia. Pathological examination revealed macro- and micro-nodular thyroid hyperplasia, along with a parathyroid adenoma. During postoperative follow-up, a progressive elevation of calcitonin was observed, reaching 64.2 pg/ml, while carcinoembryonic antigen levels remained normal. Since no MTC foci were found upon reviewing the thyroidectomy specimen, an investigation into the origin of the elevated calcitonin was initiated. Serum chromogranin A and specific neuronal enolase levels were within normal ranges. Tc-99m HYNICTOC scintigraphy yielded negative results. Additionally, an upper gastrointestinal endoscopy revealed a submucosal lesion in the second portion of the duodenum, with a biopsy confirming a grade 1 NET. The patient underwent Whipple surgery and hepatic metastasectomy. Postoperatively, a decrease in baseline serum calcitonin levels was observed. Seven years after surgery, she continues specialized monitoring with no biochemical or imaging evidence of disease.
Conclusion: Serum calcitonin contributes to the diagnosis and monitoring of anterior intestine NETs.
Keywords: Calcitonin, neuroendocrine tumors, chromogranin A, intestinal neoplasms, medullary carcinoma, HYNIC-TOC.
Call for Papers in Thematic Issues
Association between Diabetes Mellitus and natural product complementary applications: State of the arts
Diabetes Mellitus (DM) represents a significant global health challenge, characterized by chronic hyperglycemia resulting from defects in insulin secretion, insulin action, or both. The increasing prevalence of DM, alongside its associated complications, has prompted researchers and healthcare professionals to explore a variety of management strategies beyond conventional pharmacotherapy. Among these ...read more
Chronic inflammation and Disorders/Cancers
Chronic inflammation is fundamental cause of variety of disorders. Many lifestyle-related diseases including metabolic syndrome, obesity, impairment of immune responses, sepsis, mental illness, and other disorders are caused by chronic inflammation. Prevention of chronic inflammation is related to antiaging effects of our body. Proinflammatory cytokines such as TNF-α is associated ...read more
Immune defense of the blood-tissue barriers which are related to drugs, metabolic and hormones
We have already known that testis is an immune privilege area for the maintenance of spermatogenesis against to any pathogen from the interstitial area. With the BTB integrity there is a qualified selection for the mature sperm until the lumen migration which is sperm release progress. Spermiogenesis help for the ...read more
Related Journals
Anti-Cancer Agents in Medicinal Chemistry
Anti-Inflammatory & Anti-Allergy Agents in Medicinal Chemistry
Current Bioactive Compounds
Current Cancer Drug Targets
Combinatorial Chemistry & High Throughput Screening
Current Cancer Therapy Reviews
Current Diabetes Reviews
Current Drug Safety
Current Drug Targets
Current Drug Therapy
Related Books
COVID-19: Causes, Transmission, Diagnosis, and Treatment
Skeletal Muscle Health in Metabolic Diseases
Anthocyanins: Pharmacology and Nutraceutical Importance
Herbal Medicine for Autoimmune Diseases
The Roles and Responsibilities of Clinical Pharmacists in Hospital Settings
Common Lip Diseases: A Clinical Guide
Interventional Pain Surgery
Endoscopy and Fetoscopy Techniques for the Brain and Neuroaxis
Bioactive Compounds from Medicinal Plants for Cancer Therapy and Chemoprevention
Frontiers in Stem Cell and Regenerative Medicine Research
4
