Immunohistochemical Staining With Neuroendocrine Markers is Essential in the Diagnosis of Neuroendocrine Neoplasms of the Esophagogastric Junction
| Autor: | Birgitte Federspiel, Dea Natalie Munch Jepsen, Jakob Holm, Rajendra Singh Garbyal, Anne-Marie Kanstrup Fiehn, Ulla Engel |
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| Rok vydání: | 2021 |
| Předmět: |
Adult
Male 0301 basic medicine Pathology medicine.medical_specialty Histology Esophageal Neoplasms Synaptophysin H&E stain Neuroendocrine differentiation Pathology and Forensic Medicine 03 medical and health sciences 0302 clinical medicine Stomach Neoplasms Biomarkers Tumor Chromogranins Humans Medicine Esophagogastric junction Aged Neoplasm Staging Aged 80 and over Observer Variation biology business.industry Poorly differentiated Chromogranin A Middle Aged Immunohistochemistry Staining Neuroendocrine Tumors Medical Laboratory Technology 030104 developmental biology 030220 oncology & carcinogenesis biology.protein Female Esophagogastric Junction business |
| Zdroj: | Applied Immunohistochemistry & Molecular Morphology. 29:454-461 |
| ISSN: | 1541-2016 |
| Popis: | Neuroendocrine neoplasms (NENs) of the esophagogastric junction (EGJ) are uncommon and the classification of these tumors has been revised several times. Since 2016, at the Department of Pathology, Rigshospitalet, Denmark, all adenocarcinomas and poorly differentiated carcinomas of the EGJ have been stained routinely with the neuroendocrine markers, synaptophysin and chromogranin A, to detect a possible neuroendocrine component. This study aimed to determine if routine immunohistochemical staining is necessary to detect neuroendocrine differentiation of the EGJ tumors by evaluating how often a neuroendocrine component of the tumors was correctly identified or missed on routine hematoxylin and eosin-stained slides, and by evaluating the interobserver agreement among several pathologists. Of 262 cases a NEN was identified in 24 (9.2%). Up to 22.7% of all EGJ NENs would have been missed without routinely performed neuroendocrine staining in all EGJ tumors. The interobserver agreement between 3 pathologists was slight to moderate. In conclusion, immunohistochemical staining with neuroendocrine markers is essential for the diagnosis of NENs, and to detect all NENs, we recommend to perform this routinely on all resected tumors of the EGJ. |
| Databáze: | OpenAIRE |
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