所謂リガ氏病の7例に就いて

　緒言

　所謂リガ，フエーデ氏病は1876年フエーデに依り哺乳兒舌繁帶部に発生せる胞瘍として報告され，1880年リガに依り斯く命名されて以來本邦にいても多数例の報告を見る．余等も最近その7例に就き観察する機会を得たので追加報告しようと思う．

Hashimoto and Nagai report their obsesvations on 7 cases of Riga's Disease or cachectic aphthae in infants whose ages ranged from 6 to 13 mon-ths (3 boys and 4 girls). Six caees in this group were breast-fed and irregular feeding also num-bered as 6. Two infants were found with shor-tened frenum linguae. Number of erupted teeth ranged from 2-4 among different individuals except one of whom the tooth was yet to be erupted. Microscpically the lesions presented mammary sarcoma, a combination of mammary and fibroma and, granuloma. Following factors may be considered as contributing cause of the disease : (1) Erom oral lesions caused by faulty and/or irregular method of feeding or, by severe paroxysms of cough, (2) From anatomical abnor-malities such as shortened frenum linguae or undue dental irritations, (3) From allergic dia-thesis and allergy, (4) From vitamin difficiencies in B, C or others. Prognosis in general is con-sidered as favorable but surgical treament may be necessary in case tumors enlarge to conside-rable size.