abnormal neuroendocrine cell morphology abnormal solitary pulmonary neuroendocrine cell morphology 2011-03-10T03:46:27Z CL:0002066 FMA:14118 MP:0010914 MPheno.ontology abnormal Feyrter cell morphology abnormal Kulschitzky cells abnormal Kultschitzky cell of bronchiole abnormal P cell abnormal PNECs abnormal bronchiolar Kulchitsky cell abnormal respiratory enterochromaffin cell abnormal single pulmonary neuroendocrine cell morphology any structural anomaly of the specialized non-ciliated, round- to oval-shaped epithelial cells found as solitary cells in the nasal respiratory epithelium and the mucosa of the larynx, trachea and bronchi up to the terminal bronchioles; PNECs are the first cell type to differentiate during early fetal lung development, produce amine (e.g. serotonin, 5-HT) and peptides (e.g. bombesin, calcitonin) with growth factor-like properties, and appear to be involved in processes ranging from lung development and respiratory physiology to repair, disease and carcinogenesis csmith