Histopathological analysis of the association between mucosal epithelial changes and the lamina propria vascular network in irritation fibroma

Amano, Rie; Saruta, Juri; Sakaguchi, Wakako; Kubota, Nobuhisa; Fuchida, Shinya; Tsukinoki, Keiichi

doi:10.1016/j.job.2021.07.002

Cited by 1 publication

(2 citation statements)

References 19 publications

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“…Irritation fibroma is caused by chronic stimulation from tooth biting or ill‐fitting removable dentures, but not from neoplasms. Histopathologic findings of irritation fibroma show a connective tissue lesion of the mucosa consisting of dense collagen and proliferation of mature fibroblasts, but no capsule 20,21 . The mass composed of connective tissue growth with fibrosis appeared as a homogeneous, isoechoic image with an unclear border of deeper connective layer (Figure 3).…”

Section: Discussionmentioning

confidence: 99%

“…Histopathologic findings of irritation fibroma show a connective tissue lesion of the mucosa consisting of dense collagen and proliferation of mature fibroblasts, but no capsule. 20,21 The mass composed of connective tissue growth with fibrosis appeared as a homogeneous, isoechoic image with an unclear border of deeper connective layer (Figure 3). Because of connective tissue proliferation, the internal echogenicity is approximately the same as that of the surrounding normal connective tissue, and the deep border is unclear.…”

Section: Fibroma (Irritation Type)mentioning

confidence: 99%

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Ultrasonographic features of mass lesions in the oral submucosal epithelium using intraoral ultrasonography

Konishi,

Ando,

Miyauchi

et al. 2023

Head & Neck

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BackgroundMass lesions occurring under the oral mucosal epithelium are often small and difficult to diagnose; however, intraoral ultrasonography can delineate these lesions. We aimed to investigate the features of submucosal mass lesions in the oral cavity using intraoral ultrasonography.MethodsFifty patients with hemangioma, irritation fibroma, mucous cyst, lipoma, and pleomorphic adenoma were included. Age, site, largest diameter, thickness, marginal morphology type, border type, internal echo posterior echo, and internal or peripheral Doppler images of the lesions were recorded.ResultsThe hemangiomas were internally hypoechoic and exhibited a cord‐like structure; irritation fibromas, mainly internally isoechoic; mucous cysts, hypoechoic; and the lipomas appeared as homogeneous, isoechoic, or hyperechoic images with unclear borders. Pleomorphic adenomas were surrounded by a single hypoechoic zone, suggesting a thick capsular structure, were predominantly isoechoic internally, and appeared as cyst‐like hypoechoic images.ConclusionsThe features of the lesions were identified and delineated using intraoral ultrasonography.

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Section: Discussionmentioning

confidence: 99%

Section: Fibroma (Irritation Type)mentioning

confidence: 99%