Delayed postoperative radiation therapy in local control of squamous cell carcinoma of the tongue and floor of the mouth.

Objective: To evaluate the effect of time between surgery and postoperative radiation therapy on local recurrence of squamous cell carcinoma of the tongue and floor of the mouth.

Methods: A total of 154 patients treated between 1996 and 2007 were selected considering local recurrence rate and time of the adjuvant radiotherapy.

Results: Local recurrence was diagnosed in 54 (35%) patients.

Update of assessment of survival in head and neck cancer after regional recurrence.

Objective. To evaluate site of regional recurrence in patients with squamous cell carcinoma of upper aerodigestive tract after neck dissection and the results of salvage treatment. Methods.

Prognostic significance of the number of lymph nodes in elective neck dissection for tongue and mouth floor cancers.

Unlabelled: The presence of metastatic lymph nodes is a relevant aspect in the treatment of head and neck cancer, bringing about a 50% reduction in survival.

Objective: To assess the number of lymph nodes removed in the neck dissection and their relationship with the prognosis.

Methods: A retrospective study involving 143 patients with tongue and mouth floor epidermoid carcinoma, which histological exam showed no lymph node metastases.

Neck dissection in squamous cell carcinoma of the larynx: indication of elective contralateral neck dissection.

Unlabelled: Unilateral or bilateral neck dissection must be considered in the treatment of laryngeal cancer

Aim: To evaluate the prevalence of contralateral metastases in larynx cancer and distribution of these metastases according to lymph node levels in the neck.

Method: Retrospective longitudinal study of 272 charts from patients with squamous cell cancer of the larynx treated between 1996 and 2004; and we selected 104 surgical cases submitted to neck dissection. We evaluated the incidence of bilateral or contralateral metastases, according to the location and extension of the primary tumor, considering the anatomical sub-sites and the midline.

Warthin's tumor of the parotid gland: study of 70 cases.

Objective: To report the clinical characteristics, treatment and complication of Warthin tumors.

Methods: we conducted a retrospective study of 70 patients undergoing resection of papillary lymphomatous cystadenoma.

Variables: age, sex, ethnicity, presence or absence of smoking, primary site of tumor, tumor size in cm, presence of bilateral tumor, type of operation, multicentricity, treatment complications, recurrence and follow up.

[Neck skin collision tumor].

The collision or mixed tumor is a malignant neoplasm of the skin related to sun exposure and incidence rates of up to 1.5%. It displays a distinctive clinical behavior in relation to other malignancies of the skin and the histological diagnosis, characterized by the collision between a basal cell carcinoma and squamous cell carcinoma, i.

Impact of combination therapy on disease free survival in hypopharynx cancer.

Objective: To evaluate the disease-free survival in hypopharyngeal tumors submitted to postoperative radiotherapy.

Methods: we retrospectively studied 174 patients with the following distribution: two cases of stage I, four stage II, 46 stage III and 122 stage IV. Regarding gender, 163 were male and 11 female; mean age was 56 years.

Diagnostic and therapeutic delay in patients with larynx cancer at a reference public hospital.

Unlabelled: Laryngeal squamous cell carcinoma is very often diagnosed at advanced stages. The time interval between the specialist consultation and the start of treatment may contribute to better outcomes.

Aim: the interval assessment between the first specialist evaluation and the treatment of patients with laryngeal squamous cell carcinoma.

Assessment of disease-free survival in patients with laryngeal squamous cell carcinoma treated with radiotherapy associated or not with chemotherapy.

Unlabelled: In early stage (I and II) laryngeal squamous cell carcinoma, both surgery and radiotherapy results in significant local and regional control. In advanced tumors (III and IV), radiotherapy alone has local-regional control rates of 32-43%.

Aim: To assess disease-free survival in SCC laryngeal carcinoma patients submitted to radiotherapy alone and/or associated with chemotherapy.

Assessment of clinical and therapeutic factors in patients with nasopharyngeal undifferentiated carcinoma.

Unlabelled: The nasopharyngeal carcinoma (NPC) is a rare cancer with a high incidence in Southern Asia.

Aim: To study the demographic, clinical, therapeutic, and prognostic factors of nasopharyngeal undifferentiated carcinoma in a reference service.

Materials And Methods: A retrospective study was made of 46 patients from January 1998 to August 2000.

Assessment of demographics factors and clinical staging in patients submitted to salvage surgery for oropharyngeal squamous cell carcinoma.

Unlabelled: The usual management of upper aero digestive tract squamous cell carcinoma is surgery associated or not to post surgical radiotherapy. Loco-regional relapses constitute the main failure of the initial treatment and early diagnosis justifies the indication of salvage surgery.

Aim: Descriptive analysis of demographic data and staging for salvage surgery of oropharynx tumors.

[Assessment of disease-free survival in patients with loco-regional recurrence of squamous cell carcinoma of the oral cavity and oropharynx submitted to salvage treatment].

Objective: Salvage surgery is the first therapeutic option for recurrent tumors of the mouth and oropharynx, mainly in early stage tumors. This study intends to evaluate the disease free survival interval after salvage treatment for recurrent tumors of the mouth and oropharynx.

Methods: Retrospective analysis of 276 patients with squamous cell carcinoma of the mouth and oropharynx treated with surgery.