Clinical study of early invasive carcinoma of the oral mucosa

Amagasa, Teruo; Yokoo, Emiko; Yuki, Katsuhiko; Iwaki, Hiroshi; Tachibana, Tadao; Fujii, Eijiro; Shioda, Shigetoshi

doi:10.5794/jjoms.26.1497

Cited by 1 publication

(3 citation statements)

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“…The EIC almost consistently showed various clinical findings without apparent induration (1). These findings were often similar to those of precaneerous lesions, such as leukoplakia and erythroplakia (1). It is, therefore, often difficult to determine the size of the early carcinoma (T factor) according to clinical findings.…”

Section: Discussionmentioning

confidence: 65%

“…These early carcinomas have been known to show a favorable prognosis (6,7). In this study SCC which does not invade the muscle layer was classified as EICT (1).…”

Section: Discussionmentioning

confidence: 99%

“…Inspection and palpation are frequently used for the examination of oral lesions. However, oral carcinoma in its early stage, is not often detected (1)(2)(3). Although many studies of oral cancer have been reported, there is little knowledge of the histological features of the incipient phase of invasive carcinoma of the oral eavity (3)(4)(5).…”

mentioning

confidence: 99%

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Early invasion of squamous cell carcinoma of the tongue: of 31 cases

Hasegawa

Kayano

1988

J Oral Pathology Medicine

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Early invasion of squatnous cell carcinoma of the tongue: pathology of 31 cases. J Oral pathol 1988: 17: 49-54.Thirty-one cases of early invasive squamous cell carcinotna (SCC) of the lateral border of the tongue were analyzed histologically; 9 were also serially sectioned. Three-dimensional reconstruction graphics showed that tnost of the invasive islands were connected with the adjacent epithelium, in spite of the apparent separation of islands on one histological section. Deep elongation, branching-off of rete processes and the tiarrowing of each junction of branches were frequently observed. Early invasive patterns were characteristic and classified into the following 4 prototypes: droplet(17 cases); elongating(12 cases); invaginating(l case); and reticular(l case) invasion. Marked eellular atypia was not often seen either in the carcinoma or the adjacent epitheliutn. Some of these cases showed little cellular atypia. These results suggested that not only cellular atypia, but also such morphological architectures (structural atypia), as the elongation and branching-off of rete processes, the increased number of separated islands, epithelial invagination, and the shortening of the distances between the surface epithelium and the underlying muscle layer, must be taken into consideration as being histological features of carcinotnatous changes.

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Section: Discussionmentioning

confidence: 65%

“…These early carcinomas have been known to show a favorable prognosis (6,7). In this study SCC which does not invade the muscle layer was classified as EICT (1).…”

Section: Discussionmentioning

confidence: 99%