PubMed Health⌕ Search

SEARCH · PubMed Health

Results for “TONGUE NEOPLASMS”

Explore indexed PubMed citations for clinical trials, systematic reviews and public health research. Read source abstracts and follow each citation to its original PubMed record.

Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.

At least 19 recordsLinked to original sources
PubMed2006

Transoral robotic surgery (TORS) for base of tongue neoplasms.

OBJECTIVE: To develop a minimally invasive surgical technique for the treatment of base of tongue neoplasms using the optical and technical advantages of robotic surgical instrumentation. STUDY DESIGN: Ten experimental procedures including tongue base exposure and dissections were performed on three cadavers and two mongrel dogs. Transoral robotic surgery (TORS) was then performed on three human patients with tongue base cancers in a prospective human trial. METHODS: Using the da Vinci Surgical Robot (Intuitive Surgical, Inc., Sunnyvale, CA), we performed a total of 10 base of tongue resections on edentulous and dentate cadavers as well as live mongrel dogs. In the cadaver models, exposure was evaluated using three different retractors, the Dingman, Crowe Davis, and FK retractors. The three human patients underwent TORS surgery of their tongue base cancers under an institutional review board approved prospective clinical trial. The ability to identify and preserve or resect key anatomic structures such as the glossopharyngeal, hypoglossal, and lingual nerves as well as techniques for identifying the lingual artery and achieving hemostasis were developed. RESULTS: The da Vinci Surgical Robot provided excellent visualization and enabled removal of the posterior one third to one half of the oral tongue in cadavers, dogs, and human patients. Among the three retractors evaluated, the FK retractor offered the greatest versatility and overall exposure for robotic instrument maneuverability. Complete resection to negative surgical margins with excellent hemostasis and no complications was achieved in the live patient surgeries. CONCLUSIONS: TORS provided excellent three-dimensional visualization and instrument access that allowed successful surgical resections from cadaver models to human patients. TORS is a novel and minimally invasive approach to tongue neoplasms that has significant advantages over classic open surgery or endoscopic transoral laser surgery.

Animals↗
PubMed1993

Chemoprevention of oral carcinogenesis by DL-alpha-difluoromethylornithine, an ornithine decarboxylase inhibitor: dose-dependent reduction in 4-nitroquinoline 1-oxide-induced tongue neoplasms in rats.

The modifying effect of three doses of DL-alpha-difluoromethylornithine (DFMO) given p.o. during the post-initiation phase of tongue carcinogenesis initiated by 4-nitroquinoline 1-oxide (4-NQO) was studied in male ACI/N rats. Animals were given 4-NQO at 20 ppm for 8 weeks in the drinking water to induce tongue neoplasms. One week after the stop of 4-NQO treatment, rats were transferred to the drinking water containing DFMO at concentrations of 100, 1000, and 2000 ppm for 25 weeks. The other groups consisted of rats given 2000 ppm DFMO alone or untreated rats. Thirty-four weeks after the start of the experiment, all animals were necropsied, and the incidences of neoplasms and preneoplastic lesions in the tongue, polyamine levels in the bloods and tongue tissues, and cell proliferation estimated by the number and area of silver-stained nucleolar organizer regions in the tongue epithelium were compared among the groups. Feeding of DFMO at all doses significantly inhibited the incidence of tongue neoplasms compared to the group given 4-NQO alone. DFMO at levels of 1000 and 2000 ppm significantly reduced the incidence of preneoplastic lesions of the tongue. Results analyzed by the linear regression method suggested a dose-dependent inhibition in the incidences of neoplastic and preneoplastic lesions of the tongue with increasing levels of DFMO. Increased levels in polyamines in the blood and tongue tissue were significantly suppressed by the treatment of DFMO. Also, silver-stained nucleolar organizer region indices were significantly reduced by the DFMO exposure. These results indicate that increasing levels of DFMO in the drinking water inhibited 4-NQO-induced tongue carcinogenesis in a dose-dependent manner and such inhibition was related to reduction in the polyamine levels of blood and tissue and decrease in the cell proliferation.

4-Nitroquinoline-1-oxide↗
PubMed2003

[Lingual thyroid: a rare disease resembling base of tongue neoplasm].

The ectopic thyroid gland occurring in the midline of the base of tongue is a rare developmental anomaly. It may cause differential diagnostic problems with real malignant tumor. Symptoms, if where are any: foreign-body-feeling, swallowing difficulties, dyspnea, articulation disorders, bleeding and hypothyroidism, but in many cases the diagnosis is accidental. We describe two cases of lingual thyroid gland operated in our department, and discuss the present trends of the treatment of this disease. We agree with most of the authors that only cases presenting with symptoms should be operated, and if possible the normal thyroid tissue should be replaced into the body. However, all discovered cases have to be followed to avoid late hormonal disturbances.

Adult↗
PubMed2002

[Potential use of cysteine endopeptidase inhibitors in radiodiagnostics of laryngeal and tongue neoplasms].

The methods applied up to now do not allow to define the border between the tumor and healthy tissue especially in advanced cases. Microlaryngoscopy facilitates the evaluation of the infiltration superficially, but does not allow for estimation its deeper penetration. CT and MRI often do not answer the question concerning the tumor spread as well. That is why the monoclonal antibodies marked with isotopes directed against specific antibodies of different neoplasms are applied in diagnostic. In the neoplasm development the great role play endopeptidases. They degrade the intercellular matrix and basement membrane and by this way made possible the neoplasm invasion. The high level of the endopeptidase in patients with neoplasm is a bad prognosis. The disposition of endopeptidase in neoplasm tissue is characteristic and gives opportunity to localise the border of healthy tissue thanks their inhibitors application. The inhibitor of cysteine endopeptidase obtained from hen egg and marked by J 125 was used in our study. The reaction between the cysteine endopeptidase inhibitor and malignant cells received directly from patients with tongue and laryngeal carcinoma and cells cultivated in vitro from the carcinoma.

Antibodies, Monoclonal↗
PubMed2000

[The value of endoscopic ultrasound examination for tongue neoplasms].

The aim of the paper was to assess the value of endoral ultrasound in tongue tumors diagnostics. It was performed by the evaluation of the tumor advancement and its comparison with palpation, assessment of neoplastic tissue infiltration, detection of satellite foci surrounding the main tumor mass. Endoral ultrasound vs transcutaneous ultrasound was compared. Follow-up by means of transoral ultrasound was applied. The limitations of the method were presented. 65 patients with tongue tumors, treated in ENT Department K. Marcinkowski University School of Medical Sciences between 1995-1999 were under study. 9 patients with suspicion of local recurrence were included to the examined group. Not able value of the method was proved. In 81.5% of cases the method occurred to be much more precise than palpation and revealed the bigger dimension of the tumor then stated clinically. The satellite foci and small lesions, not possible to be detect by means of transcutaneous ultrasound, were find out and thanks to it treated radically. This method allows to differentiate the scarred and neoplastic tissue, especially in patients with clinical suspicion of relapse. The limitations of the method: trismus, big extension of the lesion, surface bleeding and gag reflex are to be listed.

Adult↗
PubMed1978

[Problems of tongue neoplasms in the light of personal observations].

Due to unfavourable local and general conditions, the treatment of carcinoma of the tongue still yields unsatisfactory results. The authors ascertained that 101 patients with carcinoma of the tongue (68 males and 37 females), having an average age of 65.2 years, had been treated at their clinic within a period of 27 years (1948--1974). Only 21% of them survived five years. In this connexion, certain questions, which are essential in the authors' opinion, are discussed. Furthermore, the patients are subdivided with regard to different aspects.

Adenocarcinoma↗
PubMed2005

An animal model for the rapid induction of tongue neoplasms in human c-Ha-ras proto-oncogene transgenic rats by 4-nitroquinoline 1-oxide: its potential use for preclinical chemoprevention studies.

Oral squamous cell carcinoma is one of the most common human neoplasms, and prevention of this malignancy requires a better understanding of its carcinogenesis process. To this end, we tried to establish an animal model using the human c-Ha-ras proto-oncogene-carrying transgenic (Tg) rats and the carcinogen 4-nitroquinoline 1-oxide (4-NQO). 4-NQO (20 p.p.m.) was administered to Tg and non-Tg rats for 8 weeks in their drinking water, and then the occurrence of tongue carcinogenesis was compared during the experimental period of 22 weeks. In addition, we determined the DNA ploidy in tongue lesions and examined the immunohistochemical expression of five biomarkers such as cyclin D1, glutathione S-transferase placental form, cyclooxygenase (COX)-2, inducible nitric oxide synthase (iNOS) and beta-catenin. Next, the cancer chemopreventive effects of nimesulide, pioglitazone and a synthetic geranylated derivative, which have been reported to be inhibitors of tongue carcinogenesis, were examined in Tg rats treated with 4-NQO. Either during or after treatment with 4-NQO in the drinking water, tongue dysplasia and tumors were observed on the tongues of both Tg and non-Tg rats, with a greater incidence and multiplicity in Tg rats. Histopathologically, squamous cell dysplasia, papilloma and carcinoma with or without invasion were present in the tongue. Immunohistochemistry revealed that expression levels against five biomarkers increase with disease progression, and the changes correlated with those of the DNA ploidy pattern. Interestingly, a strong expression of COX-2, iNOS and beta-catenin was observed on the invasive front of squamous cell carcinomas. A subsequent chemoprevention study using Tg rats showed that the chemicals tested suppressed the occurrence of tongue carcinomas when they were administered after 4-NQO-exposure. These results may thus indicate that our 4-NQO-induced Tg rat tongue carcinogenesis model simulates many aspects of human oral carcinogenesis and it can be applied for an analysis of oral cancer development while also helping to identify potentially effective cancer chemopreventive agents against oral cancer.

4-Nitroquinoline-1-oxide↗
PubMed2001

[A case of tongue neoplasm in a 15-year old patient treated with immunosuppressants for renal insufficiency].

The case of lingual cancer in the 25-years old man treated in 2nd ENT Department Silesian Medical Academy in Zabrze was presented in this paper. The patient has been treated from 1989 due to chronic pyelonephritis finished with the renal insufficiency. In 1991 the renal graft was performed and in 1993 graftectomy due to its rejection. In 1991-1993 the long-term immunosuppression was taking including medicines like Cyclosporin, Imuran, Azatioprin and Encorton. The aim of this study was to consider the influence of immunosuppression therapy on lingual cancer appearance in our patient.

Adult↗
PubMed1990

[Neoplasms of the tongue. An analysis of cases].

The authors study a group of 295 patients treated for tongue neoplasms at the Istituto di Oncologia di Torino. They point out the influence of many factors on survival particularly referring to tumour size, lymph nodes metastases and tumour stage at the time of first treatment.

Adult↗