Neuroendocrine carcinomas of the larynx include a range of rare tumors which have variable biologic behavior, affecting treatment and prognosis. Among these, typical carcinoid tumors are the least common type. Prognosis of typical carcinoid tumor is better than atypical carcinoid tumor and small cell carcinoma of the larynx. Conservation surgery is the preferred treatment modality. Transoral CO2 laser surgery can be a good alternative for appropriate cases because of the functional results and less morbidity. In this article, a 71-year-old female presented with complaints of feeling a mass during swallowing. Fiberoptic examination of the larynx revealed a mass located on the right aryepiglottic fold and biopsy revealed the tumor as a typical carcinoid tumor. We describe CO2 laser excision of a typical carcinoid tumor of the larynx in this case report.
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Lung neuroendocrine neoplasms are a group of diverse, heterogeneous tumours that range from well-differentiated, low-grade neuroendocrine tumours-such as typical and atypical carcinoids-to high-grade, poorly differentiated aggressive malignancies, such as large-cell neuroendocrine carcinoma (LCNEC) and small-cell lung cancer (SCLC). While the incidence of SCLC has decreased, the worldwide incidence of other pulmonary neuroendocrine neoplasms has been increasing over the past decades. In addition to the standard histopathological classification of lung neuroendocrine neoplasms, the introduction of molecular and sequencing techniques has led to new advances in understanding the biology of these diseases and might influence future classifications and staging that can subsequently improve management guidelines in the adjuvant or metastatic settings.
View Article and Find Full Text PDFInt J Surg Case Rep
December 2024
University of Aleppo, Faculty of Medicine, Aleppo, Syria.
Introduction: Lung cancer is a major cause of cancer-related deaths, with 2 million new cases annually. Bronchopulmonary neuroendocrine tumors (BP-NETs) comprise about 20 % of lung cancers, including typical carcinoid tumors (TC). While tobacco is a primary risk factor, non-tobacco factors also play a role.
View Article and Find Full Text PDFAnal Chem
January 2025
School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, China.
Conventional solid/liquid electrochemical interfaces typically encounter challenges with impeded mass transport for poor electrochemical quantification due to the intricate pathways of reactants from the bulk solution. To address this issue, this work reports an innovative approach integrating a target-activated DNA framework nanomachine with electrochemically driven metal-organic framework (MOF) conversion for self-sacrificial biosensing. The presence of the target biomarker serotonin initiates the DNA framework nanomachine by an entropy-driven circuit to form a cross-linked nanostructure and subsequently release the Fe-MOF probe.
View Article and Find Full Text PDFAACE Clin Case Rep
August 2024
Division of Endocrinology, Department of Medicine, Duke University, Durham, North Carolina.
Background/objective: Pulmonary carcinoid tumors are a rare cause of Cushing's syndrome and usually present with an indolent course. Here, we present a case of rapid onset and severe Cushing's syndrome due to a typical pulmonary carcinoid tumor.
Case Report: A 32-year-old woman developed diabetes, hypertension, and weight gain of 50 pounds over 3 months.
Gastroenterology
December 2024
Division of Gastroenterology and Hepatology, Stanford University School of Medicine, Palo Alto, California.
Description: Gastric cancer (GC) is a leading cause of preventable cancer and mortality in certain US populations. The most impactful way to reduce GC mortality is via primary prevention, namely Helicobacter pylori eradication, and secondary prevention, namely endoscopic screening and surveillance of precancerous conditions, such as gastric intestinal metaplasia (GIM). An emerging body of evidence supports the possible impact of these strategies on GC incidence and mortality in identifiable high-risk populations in the United States.
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