The science of the microscopic structures of the tissues formed within histogenesis is termed histology. The details of the histogenesis of FA remain unknown and highly debated. Mall's convictions led him to expand the anatomical curricula to include histology, histogenesis, and embryology. As a pathological anatomist, Weber specialized in the fields of histology and histogenesis. The histogenesis of most lung cancers is not well understood. The exact mechanisms and histogenesis of lung cancers are topics of intense interest and research. Histogenesis is the formation of different tissues from undifferentiated cells.