PMC6432694_01
Postoperative procedure revealed thick keratinous plug mixed with wax.
CRIOT2019-9095747.001.jpg
PMC6432694_01_CRIOT2019-9095747.001.jpg
fig1
The keratinous plug was removed, and a diagnosis of KO was established (Figure 1).
(a) Keratinous material (hematoxylin/eosin stain, x100). (b) Acellular lamellated keratin flakes (hematoxylin/eosin stain, x400).
CRIOT2019-9095747.002.jpg
PMC6432694_01_CRIOT2019-9095747.002.jpg
fig2
Pathological analysis of the removed plug revealed acellular lamellated keratin flakes and keratinous material (Figures 2(a) and 2(b)), which confirmed our diagnosis.