Abstract
The author reported here both a case of acute tonsillar abscess and a case of peritonsillar abscess. In the former case, it was observed that acute tonsillar abscess affected the peritonsillar tissue and formed peritonsillar abscess. An opinion on this process had already been presented by Sasaki in 1949. Seemingly this case supports his maintenance.
The latter was also peritonsillar abscess and the lesion was extended laterally into the alveolar region. In this case, bilateral conchotomy is interpreted as being followed by angina which caused abscess formation primary in the peritonsillar tissue. The author discussed the difference between these two processes.
