case_images: PMC11835112_01
case_images: (A) Axial CT of the nasal cavity. (B) Coronal CT of the nasal cavity. Yellow scissors indicate a nasal polyp in the low-density area of the left nasal cavity; red scissors indicate REAH in the left nasal cavity with low density. CT = computed tomography, REAH = respiratory epithelial adenomatoid hamartomas.
case_images: medi-104-e41424-g001.jpg
case_images: PMC11835112_01_medi-104-e41424-g001.jpg
case_images: F1
case_images: Sinus computed tomography (CT) revealed abnormal low-density shadows in the middle nasal passages bilaterally and anterior deviation of the nasal septum to the left (Fig. 1).
case_images: Results of the pathologic examination of the resected tumor. (A) At 10 x 10 magnification, predominantly massive plasma glandular hyperplasia is noted (red arrow), forming an adenomatous structure with scattered phagocytic infiltration. (B) Interstitial vascular proliferation is evident (red arrow). (C) At 10 x 10 magnification, predominantly massive mucous gland hyperplasia is noted (red arrow), forming adenomatous structures with scattered eosinophilic and centrocytic infiltrate. (D) At 10 x 20 magnification, diffuse infiltration of eosinophils (yellow arrow) with residual mucous glands (red arrow) is noted.
case_images: medi-104-e41424-g002.jpg
case_images: PMC11835112_01_medi-104-e41424-g002.jpg
case_images: F2
case_images: The results showed that the right nasal mass had a large number of proliferating plasma and mucous glands, forming an adenomatous structure with scattered infiltration of phagocytic and neutrophilic granulocytes and marked interstitial vascular hyperplasia (Fig. 2).