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At least 19 recordsLinked to original sources

[Prosthetic rehabilitation in patients with malignant tumors of the soft palate. A clinical case report].

Soft palate neoplasms are relatively rare and their care requires not only an adequate surgical removal but also a post-treatment rehabilitation. In this article the authors after having considered the importance of the soft palate function on the individual's ability to shallow and speak, describe one case of squamous cell carcinoma of the soft palate and treated with surgery followed by prosthetic rehabilitation. Especially it is pointed out the utility of a palatal obturator in the care of deleterious esthetic and psychological aspect of the residual anatomical defect, considering the possibility of the re-establishment the integrity of the tissues and structures in the oral cavity by hand-made prosthesis more and more exact and functional.

Aged

[A radiologic study of metastatic pulmonary tumor originating in the oral and maxillofacial regions].

A retrospective study of 103 cases of metastatic pulmonary tumors originated from oral and maxillofacial regions was made radiologically as well as clinically. With regard to the site and pathologic type of the primary neoplasm, palatal tumor and adenoid cystic carcinoma was the most frequent ones respectively which metastasize to the lungs. Radiologic types of metastatic pulmonary tumor might be classified into five categories: solitary, multiple nodular, multiple mass, diffuse and miliary network. The relationship between prognosis and radiologic types, the growing rate and complications such as cavitation, atelectasis, pleural effusion, lymph node enlargement and destruction of ribs were briefly discussed. The authors were of the opinion that the duration from primary to metastatic and that from metastases to death in oral and maxillofacial malignant tumors are longer than those of other sites in human body.

Adolescent

Parapharyngeal mass presenting with sleep apnoea.

A 60-year-old man presented with a history of progressive sleep disturbance due to an intraoral parapharyngeal salivary gland tumour. The sleep study performed post-operatively showed rapid resolution of nocturnal hypoxic episodes. This appears to be the first recorded case of a parapharyngeal mass causing sleep apnoea and we review the current literature on obstructive sleep apnoea.

Humans

Rhinocerebral mucormycosis: diagnosis and treatment. Report of two cases.

Rhinocerebral mucormycosis (phycomycetes), a human fungal disease with oral and perioral findings, has an extremely high morbidity and mortality. The disease is most frequently seen in patients with poorly controlled diabetes. The symptoms, findings, and treatment of rhinocerebral mucormycosis are discussed, and two case histories are presented.

Adult

[Current techniques of pharyngo-velar reconstruction after excision for cancer].

Carcinological surgery of the pharyngo-velar region poses delicate problems of reconstruction in exereses exceeding the midline. To avoid false alimentary pathways through the nose and phonatory problems (open rhinolalia), we propose the use, with or without the combination of a muscular cutaneous flap, of a free antecubital flap or of a latter is apparently fully satisfactory on the functional plane with the additional advantage of not leaving any aesthetic sequellae.

Humans

Intraoral adenoid cystic carcinoma.

A case report of adenoid cytic carcinoma of the palate is presented. The clinical manifestations, diagnostic criteria, surgical resection, and prosthetic reconstruction of the patient are discussed.

Carcinoma, Adenoid Cystic

[Adenocarcinoma of the minor salivary glands].

After a review of literature, some clinical and histological features of adenocarcinomas of minor salivary gland are remarked. Two cases of adenocarcinomas are reported.

Adenocarcinoma

Iridium 192 implantation of squamous cell carcinomas of the oropharynx.

From 1970 to 1984, 127 patients with T1 or T2 carcinomas of the oropharynx were treated with external irradiation to the primary tumor and neck nodes to a dose of 45 Gy, followed by a further 30 Gy delivered by an iridium 192 implant to the primary tumor. Patients with clinically positive nodes had either further neck irradiation using electrons or a neck dissection. Crude 5-year disease-free survival was 66% for tonsillar carcinomas, 43% for soft palate, and 51% for base of tongue. Local control was 98%, 85%, and 76%, respectively. Regional control was 97% for N0 patients and 88% for N1-3. Soft tissue ulceration occurred in 17 patients; all healed spontaneously. The high rate of local control achieved in these patients while preserving function and minimizing xerostomia supports the use of this approach.

Adult

Intraoral papillary squamous cell tumor of the soft palate with features of sialadenoma papilliferum-? malignant sialadenoma papilliferum.

An unusual, recurring, squamous papillary tumor involving and possibly arising from minor salivary gland excretory ducts in the palate is presented. Similarity to sialadenoma papilliferum and upper respiratory tract papillomatosis is noted. A paraglandular cystic mass with some resemblance to the palatal lesion, and a solitary lymph node with papillary squamous epithelial deposits was found in a radical neck dissection. We suggest that the lymph node lesion represents a metastasis which may have arisen from the palatal lesion, and therefore propose the concept of a possible malignant analogue of sialadenoma papilliferum.

Carcinoma, Papillary

Necrotizing sialometaplasia of the palate. Ulcerative or necrotizing stage of leukokeratosis nicotina palati?

A typical case of the recently described tumor-suspect lesion, necrotizing sialometaplasia (NS) of the palate, in a 54-year old Caucasian male is presented. Results of complete blood- and urinanalysis including serum electrophoresis and labial salivary gland biopsy strongly pointed at a local etiologic factor. Previous statements that the disease represents a new entity are questioned. The present authors favor the idea that NS is the necrotizing (ulcerative) or terminal stage of leukokeratosis nicotina palati (nicotinic stomatitis). It is of particular importance that this lesion is not diagnosed as a malignancy, as it heals spontaneously and uneventfully.

Diagnosis, Differential

A relationship found between intra-oral sites of 4NQO reductase activity and chemical carcinogenesis.

Topical application on rat oral mucosa of the chemical 4-nitroquinoline 1-oxide (4NQO) has been shown to produce squamous cell carcinomas on the posterior tongue and/or the posterior hard palate. 4NQO is broken down in vivo by a diaphorase, 4NQO reductase (E.C.1.6.99.2), to produce an active molecule believed to be responsible for carcinogenesis. It has been shown that there are higher concentrations of 4NQO reductase in oesophageal mucosa compared with elsewhere in the gastrointestinal tract. The purpose of these experiments was to compare the distribution of certain diaphorases in the oral mucosa. Samples of rat tongue and cheek epithelia were homogenized, then ultracentrifuged to provide mixed cytosol and microsome fractions from the epithelial cells. A spectrophotometer was used to measure the variation in absorbance at 340 nm of NADH consumed by reduction of 4NQO by enzymes present in the tissue extracts. A histochemical technique was used to compare the activity of NADH diaphorase, NADP diaphorase and glucose-6-phosphate dehydrogenase at different sites of the oral mucosa. Statistical analysis showed that there were significant (P less than 0.01) differences between the activities of all three enzymes at different sites of the oral mucosa. In each case, a higher activity was found at the sites of high incidence of squamous cell carcinoma. A lower activity was found at sites where carcinomas did not occur.

4-Nitroquinoline-1-oxide

[Combination of velopharyngoplasty and transposition flap of buccal mucosa for primary reconstruction of the soft palate].

Reconstruction of the soft palate after tumor surgery can present a challenge in closing the defect created and achieving a sufficient functional result. We present a new technique for primary reconstruction after partial or total resections of the soft palate. The method is based on the combination of a cranially pedicled pharyngeal mucosa muscle flap with an oral mucosal transposition flap. If partial resection of the lateral pharyngeal wall is also required, the method can be combined with a masseter crossover flap. Our present experience has shown that the surgical technique used will result in an uncomplicated and rapid primary two-layer reconstruction of the soft palate with a comparatively low postoperative complication rate and satisfactory functional results in speaking and swallowing.

Carcinoma, Squamous Cell