25 research outputs found
Soft palate preservation after tumor resection with transoral laser microsurgery
Background: Management and preservation of the soft palate is dependent on clinical stage and tumor histology.
However, available literature is scarce regarding the palate preservation with the use of laser CO
2
.
Objectives
:
We report the results obtained after management with laser surgery and soft palate preservation in
three patients with salivary gland neoplasms.
Method:
Three patients with minor salivary gland tumors were treated by means of transoral laser microsurgery.
All tumors were assessed using magnetic resonance imaging. All tumors were >3 cm. Soft palate function was
preserved and reconstruction was performed with primary closure. Patients began oral feeding the same day and
were discharged after 24 h.
Conclusions
:
Transoral laser microsurgery is recommended for treatment of soft palate tumors. This treatment can
be considered a better option when compared with other modalities such as radio- or chemoradiotherapy which
require a longer time of treatment, are more expensive and tend to produce significant toxicity
Supracricoid partial laryngectomy with cricohyoidoepiglottopexy in patients with radiation therapy failure
BACKGROUND: To assess functional results, complications, and success of larynx preservation in patients with recurrent squamous cell carcinoma after radiotherapy. METHODS: From a database of 40 patients who underwent supracricoid partial laryngectomy (SCPL) with cricohyoidoepiglottopexy (CHEP) from June 2001 to April 2006, eight patients were treated previously with radiotherapy due to squamous cell carcinoma of the glottic region and were treated for recurrence at the site of the primary cancer. RESULTS: SCPL with CHEP was performed in six men and two women with a mean age of 67 years due to recurrence and/or persistence at a mean time of 30 months postradiotherapy (in case #8 after concomitant chemoradiotherapy). Bilateral neck dissection at levels II-V was performed in six patients. Only case #8 presented metastasis in one node. In case #5, Delphian node was positive. It was possible to preserve both arytenoids in five cases. Definitive surgical margins were negative. Complications were encountered in seven patients. Follow-up was on average 44 months (range: 20-67 months). Organ preservation in this series was 75%, and local control was 87%. Overall 5-year survival was 50%. CONCLUSIONS: In selected patient with persistence and/or recurrence after radiotherapy due to cancer of the larynx, SCPL with CHEP seems to be feasible with acceptable local control and toxicity. Complications may occur as in previously non-irradiated patients. These complications must be treated conservatively to avoid altering laryngeal function
Upper lip malignant neoplasms : a study of 59 cases
Objectives: To present the demographic data, clinico-pathologic features and therapeutic outcome of a series of upper lip malignancies. Study Design: Retrospective study at a single Cancer Institution in Mexico City during a 14-year period. Results: There were 59 cases, (30 males and 29 females); age range: 14 to 106 years (mean: 73 yr.). Antecedents of ultraviolet light and tobacco exposure were found in 20 (33.9%) and 16 cases (27%) respectively. There were 35 squamous cell carcinomas (59.3%), 19 basal cell carcinomas (32.2%) and one case each (1.7%) of adenocarcinoma NOS, adenoid cystic carcinoma, angiosarcoma, Merkel cell carcinoma and melanoma. There were 14 cases in stage I (23.7%), 14 in stage II (23.7%), 3 in stage III (5.1%) 14 in stage IV (23.7%) and 14 were not classified (23.7%). There were no significant differences with respect to the overall survival curve and the disease-free survival curve among surgical treatment and radiotherapy. In addition, there was not statistically significant difference in the overall survival and disease-free survival among squamous cell carcinoma and basal cell carcinoma cases with respect to the type of treatment. Conclusions: Upper lip malignant neoplasms are infrequent lesions. The present series describes the main clinico-pathological features in a hospital-based population in Mexico city and demonstrates some differences with respect to those found in the lower lip
Laser resection of liposarcoma of the hypopharynx
Liposarcomas represent between 15 and 18% of all sarcomas with the most common site being the extremities and retroperitoneum. Liposarcomas of the head and neck are rare, with an estimated incidence representing 3 to 5.6% of all liposarcomas. Liposarcomas most commonly present in the soft tissues of the neck. Primary liposarcoma of the hypopharynx (piriform sinus) is extremely rare. The symptoms presented are principally dysphagia, dyspnea, dysphonia, airway obstruction and sensation of a foreign body. Treatment of choice is surgery, and the literature describes the performance of lateral pharyngotomy, simple excision and even total laryngectomy. We present the case of a 23-year-old patient who was diagnosed 7 years prior with liposarcoma of the piriform sinus. The patient underwent surgery using a cervical approach. The tumor recurred 4 years postoperatively and the patient was again surgically intervened using the same approach. He presented to our Institute with 3 months evolution of dysphonia. Nasofibrolaryngoscopy and imaging studies were performed. Surgical treatment was decided upon with CO2 laser using suspension microlaryngoscopy, obtaining excellent results. Some of the advantages of this approach are low morbidity because of the avoidance of performing a tracheostomy, rapid return to oral feeding without necessity of a feeding tube, and reduction in hospitalization days. Disadvantage includes difficulty in evaluating margins
Giant retroperitoneal liposarcoma
<p>Abstract</p> <p>Background</p> <p>Liposarcoma is the most frequent histopathological variety of the retroperitoneum, surgery is the gold standard for treatment.</p> <p>Case presentation</p> <p>We present the case of a 24-year-old male who was diagnosed with a giant retroperitoneal liposarcoma. The patient received palliative treatment due to non-resectability on the basis of chemotherapy. We decided to perform surgery after no benefit was received with systemic treatment. Complete macroscopic resection of the tumor was performed, without multi-organ resection. The patient is currently alive and disease free at 14 months of evolution.</p> <p>Conclusion</p> <p>Retroperitoneal liposarcomas represent a unique situation and require a more aggressive surgical approach including multiple resections for recurrences. Based on the ability of the patient to tolerate the procedure, surgery is suggested to evaluate resectability of the tumor. We must take into consideration whether prolonged survival will be attained and tumor removal will result in palliation of symptoms.</p
Control of Frey?s syndrome in patients treated with botulinum toxin type A
Aim: To identify the severity of Frey?s syndrome and its response to botulinum toxin type A. Methods: Minor test was performed in all cases to assess the extent of the affected area, using the contralateral side as control. Severity was assessed according to the proposal of Luna-Ortiz et al. Response was evaluated after 3 and 6 months, and was compared with the basal data. Results: Frey?s syndrome was documented in 38 patients, but only 23 cases accepted the botulinum toxin type A treatment. Severity was moderate in 8 (35%) and severe in 15 (65%) cases. Mean applied dose was 1.41 MU/cm2 in 21 patients (91%), whereas one patient was treated with 10 MU for a 0.8 cm2 affected area (12.5 MU/cm2 ) and another patient with 10 MU for a 0.5 cm2 affected area (20 MU/cm2 ) due to severity of their symptomatology. Average affected area at the beginning was 14.2 cm2 , while after 3 and 6 months of treatment it was 4.1 cm2 and 4.4 cm2 respectively (p0.05). In conclusion, botulinum toxin A remains as the treatment of choice for Frey?s syndrome
Tumors of the oral cavity : CO2 laser management
Cancer of the oral cavity combined with oropharyngeal cancer is the sixth leading cause of death for cancer worldwide. Surgery remains the standard treatment for this disease in early clinical and locally advanced stages. Numerous studies have shown that laser management is useful for premalignant lesions in the oral cavity; however, there is no conclusive evidence that its use is appropriate in cancer of the oral cavity and that results are comparable with traditional surgery. The objective of this study is to determine cancer control after wide local resection with CO2 laser for oral malignant neoplasms. Retrospective study in patients with tumors of the oral cavity who were considered for surgical resection with CO2 laser from January 2006-December 2015. Demographic data, treatment modalities, histopathological diagnosis and clinical stage variables were obtained. All resections were done with the use of the microspot. Patients with cancer of the tongue were not included because a specific protocol for these patients does exist in our institution. There were twenty patients, 10 male and 10 female with a average age of 58 years (range: 20-92 years). Mean age was 53.5 years for females and 63 years for males. Twelve (60%) patients are alive and disease free and four (20%) were lost free of disease. CO2 laser is an acceptable surgical method for the management of small lesions in the oral cavity. We cannot rule out that small lesions of the oral cavity with positive neck could be managed in this manner, adding treatment to the neck, producing an adequate local regional control. However, this hypothesis requires additional studies
Expression of hormonal receptors in osteosarcomas of the jaw bones: clinico-pathological analysis of 21 cases
Background: Sexual hormones have an important role in many hormone-dependant tumors like breast and prostate
carcinomas, and also a relationship has been found with bone metabolism and bone tumors. Some studies
have demonstrated that the expression of hormonal receptors (HR) in osteosarcomas (OS) of long bones is associated
with gender, histological grade, histological type, and possibly may be connection with pathogenesis and evolution.
However, to our knowledge there are no studies of HR in osteosarcomas of craniofacial bones (OS-CF).
Objectives: To assess the expression of hormonal receptors in OS-CF.
Material and Methods: Twenty one cases of OS-CF were included in this study. Clinical outcome was obtained
from clinical charts. Histological sections were reviewed, and immunohistochemistry studies for estrogen, progesterone
and androgen receptors were performed.
Results: A striking female predominance was found (2:1), with a median age of 35 years. The predominant type
of OS was osteoblastic (52.4%), and histological grade was high in 86%. Follow-up was obtained in 13 cases and
ranged from 6 to 118 months (median 29 months). There were 8 patients (61.5%) dead or alive with progressive disease
in the last follow up. Negative expression of HR was found in 19/21 cases; one showed weak nuclear expression
for estrogen receptor, and another for androgen receptor. Progesterone receptor was negative in all cases.
Conclusions: OS-CF mostly affected females, most of them were of the osteoblastic type and of high grade. Hormonal
expression was practically negative in osteosarcoma of craniofacial bones
Efecto del clorhidrato de pilocarpina como estimulante de la producción salival en pacientes sometidos a radioterapia de cabeza y cuello
Objetivo: Estudiar los efectos del clorhidrato de pilocarpina
sobre la producción salival total en pacientes mexicanos con
hiposalivación secundaria a radioterapia de la región de cabeza
y cuello.
Diseño del estudio: Previo consentimiento informado, 20 pacientes
con hiposalivación secundaria a radioterapia de la región
de cabeza y cuello (> 40 Gy) fueron evaluados mediante
el Test de Saliva Global (TSG) antes, durante y al final de 10
semanas de tratamiento con clorhidrato de pilocarpina (5 mg 3
veces al día). La sintomatología relacionada a la hiposalivación
fue evaluada mediante un cuestionario con escala ordinal de 0
a 10. La cantidad de saliva producida al final del tratamiento se
comparó con los valores obtenidos al inicio del tratamiento en
cada paciente y estos datos fueron analizados mediante la prueba
de t de Student pareada. La comparación de los síntomas
bucales que incluyeron sensación de humedad, malestar, dificultades
para hablar y para deglutir se realizó mediante una
prueba de Wilcoxon pareada.
Resultados: El TSG basal indicó un promedio de 0.8 cm (d.e.
0.7) de producción salival (rango de 0 a 2.9 cm). Al cabo de las
diez semanas de tratamiento el promedio de saliva producido
por los pacientes fue de 2.24 cm (d.e..0.7), con un rango de 1.2
a 4.0 cm. El incremento de la producción de saliva fue del 64.5%
(p<0.001). Asimismo, al final del estudio se registró mejoría en
cuanto a la sensación de humedad, dificultad para hablar relacionada con la falta de saliva en la cavidad bucal, deglución y
molestias bucales relacionadas a la falta de saliva en comparación
con los datos iniciales (p<0.01). Los trastornos colaterales
detectados fueron generalmente leves, y en ningún caso fueron
causa de suspensión del tratamiento.
Conclusiones: El clorhidrato de pilocarpina en dosis de 5 mg 3
veces al día produjo un incremento significativo en la producción
salival y mejoría clínica en cuanto a la sintomatología bucal
secundaria a hiposalivación con mínimos efectos secundarios.
Asimismo, el TSG representa un método rápido, técnicamente
simple y de alta confiabilidad para el registro de la producción
salival en estudios prospectivos.Objective: To study the effects of pilocarpine hydrochloride on
whole salivary gland production in Mexican patients affected
by hyposalivation secondary to radiotherapy of the head and
neck region.
Study design: With previous written informed consent, 20
patients affected by hyposalivation secondary to head and neck
radiation therapy (> 40Gy) were evaluated through the whole
saliva test (WST) before, during and after ten weeks of treatment
with pilocarpine hydrochloride (5 mg t.i.d.). Hyposalivationrelated
symptomatology was assessed before and at every week
by means of a questionnaire with an ordinal scale ranging from
0-10. Salivary production values recorded at the end of the study
and those obtained before treatment were compared by means of Student´s t test. A paired Wilcoxon test was used to compare the
differences in the oral symptoms, such as oral dryness, soreness,
ability for speaking and swallowing before and after treatment.
Results: Initial WST had a mean salivary production of 0.8 cm
(s.d. 0.7), with a range from 0 to 2.9 cm). After ten weeks of
treatment salivary production increased to a mean of 2.24 cm (s.d.
0.7), with a range from 1.2 to 4.0 cm. There was a salivary flow
increase of 64.5% (p<0.001). In addition, there were significant
improvements in oral dryness, mouth comfort, ability to speak and
ability to swallow (p<0.01). Adverse effects were usually minimal
and they did not cause withdraw from the study in any case.
Conclusions: Administration of 5-mg pilocarpine hydrochloride
tablets three times daily significantly improved salivary
production and clinical symptomatology secondary to radiationinduced
hyposalivation with minimal side-effects. In addition,
this study showed that WST is a fast, technically simple and
highly reliable method to study salivary production in
prospective studies
Synchronic nasopharyngeal and intraparotid warthin tumors: a case report and literature review
Warthin tumor is the second most frequent benign salivary gland tumor after pleomorphic adenoma; it occurs
almost exclusively in the parotid gland and peri-parotideal lymph nodes, although it may rarely present in other
locations. It may be multicentric and bilateral in a small percentage of cases. Nasopharyngeal Warthin tumor is
very rare, and the presence of a synchronic WT involving nasopharynx and parotid is an exceptional event, as it
has been described only twice in the literature. In this article we report an additional case of a synchronic Warthin
tumor and review the related literature