Interobserver Variability of Pulmonary Carcinoids Abstract #653

Introduction: Lung carcinoids are neuroendocrine tumors histopathologically classified into typical (TC; no necrosis, <2 mitoses/2 mm2) and atypical (AC; necrosis or 2-10 mitoses/2 mm2). Identification of mitoses may be hampered by the presence of apoptotic cells, and reported prediction of prognosis based on histopathology varies, especially for ACs.
Aim(s): To determine the reproducibility of WHO lung carcinoid classification.
Materials and methods: Five lung pathologists reclassified 120 carcinoids. Results were correlated to clinical follow-up and molecular data, and κ-values were calculated.
Conference: 10th Annual ENETS Conference (2013)
Category: PRRT-Ablative therapies-Endoscopic treatment
Presenting Author: MSc Dorian Swarts

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