Influenza follicles and their buds as early diagnostic markers of influenza: typical images

[...]two corrections are needed in the citation listed as Reference 2 by Kenzaka: (i) the referenced ATLAS SAKUMA in Japanese should be the second edition and (ii) the name of the publisher should be Maruzen Planet. 2 Kenzaka presents an image of a patient's pharynx with influenza follicles and describes the morphology of the influenza follicles to be Yamada/Fukutomi classification type II gastric polypoid lesions, as described by Miyamoto and Watanabe 3 in General Medicine. According to the morphological classification of influenza follicles by Miyamoto and Watanabe, the lymph follicles of the posterior pharyngeal wall presented by Kenzaka are Yamada/Fukutomi classification type I gastric polypoid lesions; as such, they do not correspond to the definitive influenza follicles characterised by Miyamoto and Watanabe.