abnormal olfactory epithelium morphology abnormal horizontal basal cell morphology MP:0012069 abnormal basal proper cell of olfactory epithelium morphology 2013-08-10T10:56:08Z any structural anomaly of the flat or angular epithelial cell with condensed nuclei and darkly staining cytoplasm containing numerous intermediate filaments inserted into desmosomes contacting surrounding supporting cells, that lie in contact with the basal lamina of olfactory epithelium abnormal horizontal basal cells csmith MPheno.ontology