Lepidic growth is a pathological term referring to a pattern of cell proliferation along the lining of the alveolar structures of the lung as is seen in a subset of lung tumors .
History and etymology
- ‘lepidic’ was coined by the English pathologist John George Adam (1862-1926) whilst at McGill University, where he was the first Professor of Pathology
- he first employed the word lepidic in a lecture to the Toronto Pathological Society on 4 January 1902 to refer to tumors derived from surface lining cells, subtly different from its contemporaneous usage
- lepidic is derived from the Greek word 'λεπις' meaning a skin/membrane
- although erroneously posited by many articles, the word’s origins have nothing to do with butterflies, of the genus, Lepidoptera