Quantitative evaluation of consistency of normal mucosa, leukoplakia and squamous cell carcinoma of the tongue

Ogura, Ichiro; Amagasa, Teruo; Fujii, Eijiro; Yoshimasu, Hidemi

doi:10.1016/s1010-5182(98)80049-8

Cited by 10 publications

(13 citation statements)

References 7 publications

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“…7 We also devised an instrument for measuring consistency of the tongue and quantitatively evaluated the consistency of tongue lesions. 8 In this study, we quantitatively evaluated the consistency of early invasive carcinoma of the tongue to enable early detection of tongue cancer. Evaluation of consistency of early tongue carcinoma is not always possible by palpation.…”

Section: Discussionmentioning

confidence: 99%

“…8 The increased consistency of cancer implies invasion and increased depth or thickness of the tumor. The present study showed that advanced carcinoma was firmer than early invasive carcinoma.…”

Section: Discussionmentioning

confidence: 99%

“…8 This probe can be easily removed and sterilized with ethylene oxide gas. The load was measured with a strain gauge (Sogokeiso, Tokyo, Japan) and a digital indicator (F430; Unipulse, Tokyo, Japan), and the data were stored on a data logger (L840, Unipulse).…”

Section: Evaluation Of Tongue Consistencymentioning

confidence: 99%

“…The reproducibility and accuracy of this method has already been tested. 7,8 The consistency of tongue lesions was measured at the preoperative examination. Definitive diagnoses in the areas tested were rendered by biopsy.…”

Section: Evaluation Of Tongue Consistencymentioning

confidence: 99%

“…ϩ81-3-5803-5502; Fax ϩ81-3-5803-0198 ated the consistency of gingival carcinoma 7 and tongue carcinoma. 8 In this study, we investigated the consistency of early invasive carcinoma of the tongue to enable early detection of tongue cancer.…”

Section: Introductionmentioning

confidence: 99%

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Quantitative evaluation of consistency of early invasive carcinoma of the tongue

Ogura

Amagasa

Miyakura

et al. 1999

International Journal of Clinical Oncology

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Background. This study quantitatively evaluated the consistency of early invasive carcinoma of the tongue to enable the early detection of tongue cancer. Methods. The study population comprised 18 patients with early invasive squamous cell carcinoma of the tongue, 8 with lichen planus, 27 with leukoplakia, and 56 with advanced squamous cell carcinoma. All patients were examined with an instrument that measured consistency as a function of the load (in grams) needed to displace tongue mucosa by 2.0 mm, with a probe 2.0 mm in diameter. The consistency of early invasive carcinoma was compared with the consistency of normal mucosa and the consistency of the other tongue disease lesions. Consistency was also analyzed in relation to lesion size (diameter), clinical type, and histologic characteristics (grade of keratinization in the surface keratinized layer, degree of lymphoplasmacytic infiltration, and tumor thickness). Results. The mean values for the consistency of early invasive carcinoma, normal mucosa, lichen planus, leukoplakia, and advanced carcinoma lesions were 11.6 Ϯ 2.3, 4.9 Ϯ 0.7, 5.1 Ϯ 0.4, 8.3 Ϯ 2.0, and 25.4 Ϯ 8.5 g, respectively. Early invasive carcinoma was firmer than normal mucosa (P Ͻ 0.001), lichen planus (P ϭ 0.017), and leukoplakia (P ϭ 0.087). Advanced carcinoma was firmer than early invasive carcinoma (P Ͻ 0.001). In early invasive carcinoma, tumors more than 1-mm-thick were significantly firmer than those less than 1-mm-thick (P ϭ 0.013).Conclusions. This study demonstrated differences in consistency between early invasive carcinoma of the tongue and the lesions of other tongue diseases. Preoperative quantification of tumor consistency by this method could be helpful for the clinical diagnosis of early carcinoma of the tongue.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Evaluation Of Tongue Consistencymentioning

confidence: 99%

Section: Evaluation Of Tongue Consistencymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Quantitative evaluation of consistency of early invasive carcinoma of the tongue

Ogura

Amagasa

Miyakura

et al. 1999

International Journal of Clinical Oncology

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Correlation between tumor consistency and cervical metastasis in tongue carcinoma

2000

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Background The purpose of this study was to assess the correlation between the tumor consistency and cervical lymph node metastasis in tongue carcinoma. Methods Fifty‐three patients with squamous cell carcinoma of the tongue were examined with an instrument capable of measuring consistency. These cases were compared in relation to TN classification, pathologic status of nodes, and consistency. Results The mean values of consistency in tongue carcinoma were 19.7 ± 2.9 g, 13.6 ± 3.7 g, 27.4 ± 4.5 g, and 21.2 ± 6.7 g, corresponding to pathologically positive node group (PN[+]) in T1, pathologically negative node group (PN[−]) in T1, PN(+) in T2, and PN(−) in T2, respectively. Difference in consistency between PN(+) and PN(−) was significant (T1: p < .01, T2: p < .05). In the N0 patients, difference in consistency between PN(+) and PN(−) was also significant (p < .01). Conclusions We suggest that quantitative evaluation of tumor consistency would be useful in determining whether selective neck dissections can safely be omitted in some patients. © 2000 John Wiley & Sons, Inc. Head Neck 22: 229–233, 2000.

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Correlation between tumor consistency and cervical metastasis in tongue carcinoma

2000

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Abstract:Background. The purpose of this study was to assess the correlation between the tumor consistency and cervical lymph node metastasis in tongue carcinoma.Methods. Fifty-three patients with squamous cell carcinoma of the tongue were examined with an instrument capable of measuring consistency. These cases were compared in relation to TN classification, pathologic status of nodes, and consistency.

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Quantitative evaluation of consistency of normal mucosa, leukoplakia and squamous cell carcinoma of the tongue

Cited by 10 publications

References 7 publications

Quantitative evaluation of consistency of early invasive carcinoma of the tongue

Quantitative evaluation of consistency of early invasive carcinoma of the tongue

Correlation between tumor consistency and cervical metastasis in tongue carcinoma

Correlation between tumor consistency and cervical metastasis in tongue carcinoma

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