Group 1 tau staining pattern was most common, irrespective of the actual amount of staining present, being seen in 19 (of the 24 tau positive) patients with MND (patients #18–36), in all 7 patients with FTD + MND (patients #51–57) and in 9 of the patients with FTD (patients #71–79). The gene discussed is MAPT; the disease is frontotemporal dementia.