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Treatment results on advanced neck metastasis (N3) from head and neck squamous carcinoma.

OBJECTIVE: To analyze the long-term results of patients with N3 neck metastasis from squamous carcinoma of the head and neck. STUDY DESIGN: This study is based on the analysis of a retrospective cohort of 224 previously untreated patients with squamous cell carcinoma of the head and neck and lymph node metastasis sized greater than 6 cm (N3) who were evaluated from 1981 to 1996. RESULTS: Fifty-four patients (24.1%) underwent neck dissection, 137 underwent radiotherapy alone (61.2%), and 33 received only supportive care (14.7%). Control of the neck metastasis was achieved in 46 cases among the treated ones (24.1%), varying from 51.9% for the patients who underwent surgery to 13.1% for radiotherapy alone ( P < 0.001). Exclusive distant metastasis occurred in 37.0% of the cases who had control of the neck disease. The 3-year overall survival rates were 17.9% for patients who underwent surgery and 7.0% for radiotherapy alone ( P = 0.003). The multivariate analysis showed as independent predictive factors the treatment approach ( P < 0.001) and tumor site ( P = 0.016). CONCLUSIONS: This study confirms the poor prognosis of patients with N3 neck disease, mainly when treated by radiotherapy alone. A radical neck dissection associated with adjuvant radiotherapy is indicated whenever feasible. Because of the high rate of distant metastasis, protocols including adjuvant chemotherapy should be investigated.

Adult↗

How successful is high-dose (> or = 60 Gy) reirradiation using mainly external beams in salvaging local failures of nasopharyngeal carcinoma?

PURPOSE: To evaluate the efficacy of high-dose (> or = 60 Gy) reirradiation using mainly external beams in salvaging local failures of nasopharyngeal carcinoma (NPC) after modern primary radical radiotherapy that delivered radical dose-to-target volumes defined by CT scan. METHODS AND MATERIALS: Nine hundred and three patients with nondisseminated NPC whose primary radical radiotherapy was administered between 1984 and 1989 inclusive were studied. One hundred and seventy-six had local failures comprising 9 persistences and 167 recurrences. In 10 patients the local failures were preceded or accompanied by (within 2 months) distant metastases, and these were given supportive treatment or palliative radiotherapy in low dose (< 60 Gy) if symptomatic. Most of the rest (123 of 166) were treated with either reirradiation to high dose (> or = 60 Gy) using mainly external photon beams (n = 103) or nasopharyngectomy with/without radical neck dissection with/without postoperative radiotherapy (n = 20). The remainder (n = 43) received only palliative treatments because of poor general condition and/or patients' refusal of radical treatments. The primary radiotherapy was planned on the basis of target volumes defined by CT scan and given to a standard nasopharyngeal dose of 62.5 Gy/29 fractions/6 weeks. In the presence of parapharyngeal involvement, an additional boost of 20 Gy/10 fractions/2 weeks was given via a posterior oblique photon beam. If local residual tumors were diagnosed at 4-6 weeks after the completion of external radiotherapy, an additional boost of 24 Gy/3 fractions/15 days was given by intracavitary intubation. For the local failures given high-dose reirradiation, the target volume was defined by CT scan and treated by a two-field or a three-field photon arrangement with or without additional dose supplement by intracavitary intubation. Nasopharyngectomy was performed via the transcervico-mandibulo-palatal approach or the maxillary swing approach. Radical neck dissection was only performed for the clinically evident nodal failures. RESULTS: With a median follow-up of 20 months (range 2.5-81 months) since the diagnosis of local failure, the actuarial 5-year overall survival, further relapse-free survival and free-from-local-tumor rates were 9.4, 11.5, and 18.7%, respectively, for the 123 patients treated by either high-dose reirradiation (n = 103) or nasopharyngectomy (n = 20). Palliatively treated patients (n = 43) had a survival comparable to patients whose local failures were preceded or accompanied by distant metastasis (n = 10). Reirradiation to high dose (> or = 60 Gy) mainly by external photon beams achieved a 5-year overall survival of 7.6% and 5-year local control of 15.2% with significant complications. Radiation-induced temporal lobe encephalopathy was radiologically evident in 21 patients (20.4%), and 13 of these 21 patients were symptomatic. It could have been the cause of death in three patients who also suffered from uncontrolled local tumor. Significant morbidity was also associated with the other frequent radiation complications, including xerostomia, trismus, and deafness. Uni- and multivariate analyses indicated that brief initial disease-free interval between completion of primary radiotherapy and diagnosis of local failures and advanced recurrent T-stage and recurrent N-stage were significant prognosticators predicting poor survival and/or further local failure after reirradiation. These patients were unlikely to benefit from the treatment. Nasopharyngectomy (+/- neck dissection +/- postoperative radiotherapy) was associated with earlier recurrent T-stages (mostly rT1 and rT2) and better survival and local control than reirradiation. However, restricting the comparison to rT1 and rT2 still demonstrated the superior results in favor of nasopharyngectomy, which could not be explained by the selection of less advanced lesions or patients with better performance status for surgery. (ABSTRACT TRUNCATED)

Adult↗

Sonographic evaluation of operability of malignant cervical lymph nodes.

Infiltration of the carotid artery by malignant cervical nodes is considered to be a contraindication for radical neck dissection in many centers. Clinical examination alone is unlikely to provide information on the fixity of nodes to the carotid artery. We studied the role of ultrasonography as an adjunct to clinical examination in screening patients for neck dissection. Twenty-seven patients with clinical neck node metastasis were chosen for ultrasonography. All of them had surgery and the findings were correlated. The findings revealed that this procedure is effective in delineating involvement of carotid artery by neck nodes and in identifying false-positive and false-negative cases. Since the sample of patients studied was small, the study is continuing in order to accrue a larger sample.

Adolescent↗

Metastatic squamous cell carcinoma of the neck from an unknown primary: management options and patterns of relapse.

PURPOSE: Management of squamous cell carcinoma of undetermined primary tumors in the head and neck region is controversial. Here we report the Southern California Kaiser Permanente experience with these patients. METHODS AND MATERIALS: From January 1969 through December 1994, 106 patients were eligible for this retrospective analysis. Distribution of nodal staging was as follows: 14 N1, 27 N2A, 39 N2B, 2 N2C, and 24 N3. Initial treatment included excisional biopsy alone in 12, radical neck dissection alone in 29, radiotherapy alone in 24, excisional biopsy followed by radiotherapy in 15, and radical neck dissection plus postoperative radiation in 26 patients. RESULTS: Except for two patients, all patients have had a minimum follow-up of 5 years. Overall, 57 patients (54%) have had recurrences. Only two patients (3%) who had received radiotherapy as part of their initial treatment had an appearance of a potential primary site inside the irradiated field vs 13 patients (32%) who had not received radiotherapy (p =.006). Combined modality therapy resulted in fewer neck relapses, particularly in patients with advanced neck disease. Including salvage, surgery alone as the initial treatment resulted in 81% ultimate tumor control above the clavicle for patients with N1 and N2a disease without extracapsular extension. The 5-year survival for the entire population was 53%. Radiotherapy alone resulted in poor survival in patients with advanced/unresectable neck disease. No significant difference in survival based on the initial treatment was found. The statistically significant adverse factors in determining survival included advanced nodal stage and the presence of extracapsular extension. CONCLUSIONS: Radiotherapy is very effective in reducing the rate of appearance of a potential primary site. However, in the absence of advanced neck disease (N1 and N2A without extracapsular extension), radiotherapy can be reserved for salvage. Radiotherapy alone results in poor outcomes in patients with advanced/unresectable neck disease, and incorporation of concurrent chemotherapy and cytoprotective agents should be investigated.

Carcinoma, Squamous Cell↗

Prognostic predictors of squamous cell carcinoma of the buccal mucosa with negative surgical margins.

PURPOSE: To study the prognostic factors of squamous cell carcinoma of the buccal mucosa (BMSCC) with negative surgical margins. PATIENTS AND METHODS: Forty-five untreated negative marginal cases were studied for predictors of recurrence, cervical lymph node metastasis, and survival. Clinicopathologic features included age, gender, duration of tumor, primary tumor (T) classification, pathologic clinical stage, tumor differentiation, tumor thickness, number of mitoses, and lymphocytic infiltration. RESULTS: The recurrence and metastasis rate was 40% and 44.4%, respectively. With univariate analysis, the predictors of recurrence were T classification, tumor differentiation, pathologic clinical stage, and lymphocytic infiltration. Average tumor thickness was greater than 5.68 mm. For cervical lymph node metastasis, the predictors include T classification, tumor differentiation, and lymphocytic infiltration. Tumor thickness was greater than 5.17 mm; number of mitoses was greater than 2.92/high power field (HPF). With logistical regression, only tumor thickness was the predictor of recurrence. T classification and tumor thickness were the predictors for cervical lymph node metastasis. Using Cox multivariate proportional hazards regression model, the survival disadvantage factors were T classification and recurrence. The hazard grand for T classification was 2.185; for recurrence it was 74.808. CONCLUSIONS: Because T classification (between T1+T2 and T3+T4) and tumor thickness (more than 5.17 mm) were the predictors for cervical lymph node metastasis, neck dissection should be carried out routinely in T3 and T4 patients; whereas for T1 and T2 patients, neck dissection is necessary if tumor thickness is greater than 5.17 mm. T classification and recurrence are predictive factors for survival.

Aged↗

Current strategies for surgical management and adjuvant treatment of childhood papillary thyroid carcinoma.

Childhood papillary thyroid carcinoma is associated with more locally aggressive and more frequent distant disease than its adult counterpart. Recurrence rates tend to be higher in children, but cause-specific mortality remains low. Optimal initial treatment of childhood papillary thyroid carcinoma should include total or near-total thyroidectomy and central compartment node clearance. Modified neck dissections should be performed for biopsy-proven lateral neck disease. Every effort should be made to maintain parathyroid and laryngeal nerve function. Radical neck dissections are to be avoided. Radioiodine remnant ablation (RRA), appropriate thyroid hormone suppressive therapy (THST), and judicious use of therapeutic doses of (131)I are applied to achieve a disease-free status, which is most often confirmed by negative neck ultrasonography, negative whole-body scan (either withdrawal or recombinant human thyroid-stimulating hormone-stimulated), and extremely low levels of serum thyroglobulin. Appropriate utilization of (131)I, THST, repeat surgery, external beam radiotherapy, and rarely chemotherapy may provide long-term palliation and some cures in patients with recurrent/persistent disease. Follow-up should be lifelong, and the care of children after age 17 should subsequently be transferred to adult-care endocrinologists with expertise in managing thyroid neoplasia. Optimal surgical management can be achieved if adequate operations are routinely carried out by "high-volume" thyroid surgeons with expertise in the care of children. Nowhere is a multidisciplinary approach (endocrinologists, surgeons, nuclear medicine physicians, pediatricians, pathologists, oncologists) more critical than in the long-term management of papillary thyroid carcinoma that presents during childhood.

Carcinoma, Papillary↗

Management of the neck in N0 squamous cell carcinoma of the oral cavity.

Mortality in treated squamous cell carcinoma of the oral cavity is most often owing to locoregional failure. In an attempt to improve survival, an aggressive approach to surgical management is often favoured. Although it is generally accepted that the N0 neck should be treated if the risk of micrometastatic disease exceeds 20%, there is little direct support in the literature for this position. A retrospective review of all patients presenting with T1-2, N0 squamous cell carcinoma of the oral cavity treated at the Cancer Control Agency of British Columbia from 1985 to 1994 was conducted. Patients were followed for a minimum of 5 years with documentation of patterns of recurrence and disease-specific survival relative to initial management. The decision regarding management of the neck was frequently made to accommodate treatment of the primary site or reconstructive strategies. Thirteen percent of patients with T1, N0 disease underwent prophylactic neck dissection. No significant difference in outcome was noted in this group. Thirty-three percent of patients with T2, N0 disease underwent prophylactic neck dissection. There was a trend toward improved 5-year survival and lower recurrence rates in the group whose necks were treated, but the difference was not found to be statistically significant. In conclusion, this review showed a trend toward increased survival with prophylactic treatment of the neck in T2, N0 squamous cell carcinoma of the oral cavity, but a larger study would be needed to show a statistically significant benefit.

Aged↗

Oncologic and functional results of supracricoid partial laryngectomy with cricohyoidopexy.

OBJECTIVE: Supracricoid partial laryngectomy with cricohyoidopexy (SPL-CHP) is an alternative technique described for extensive tumors of the larynx that are beyond the limits of classical conservation partial laryngectomy and otherwise would be treated by total laryngectomy. STUDY DESIGN AND SETTING: Forty-six patients with carcinoma of the larynx underwent SPL-CHP between 1991 and 2003. The median age was 54 (range, 37 to 72). In 28 cases both arytenoids were spared; in 17 cases, 1 arytenoid was spared; and in 1 case, 2 arytenoids were resected. Bilateral elective neck dissections were performed in supraglottic carcinomas. In glottic carcinomas, neck dissection was performed in the presence of clinically positive lymph nodes. None of the patients were treated with postoperative radiation therapy. RESULTS: Forty-five patients were successfully decannulated; 1 patient with 2 arytenoids resected could not tolerate decannulation. The mean time for decannulation was 20 days (range, 9 to 60 days) when both arytenoids were spared with SPL-CHP, and 41 days (range, 13 to 150 days) for SPL-CHP when 1 arytenoid was spared. The average time for removal of the feeding tube was 21 days (range, 9 to 60 days) when both arytenoids were spared, and 40 days (range, 16 to 127 days) when 1 arytenoid was spared. The removal time of the feeding tube of the patient with 2 arytenoids resected was postoperative day 63. In 2 patients, aspiration pneumonia occurred as a result of swallowing impairment. In none of the patients temporary or permanent gastrostomy was needed. Two patients had local recurrence and were treated with a total laryngectomy; they are still alive. In 2 patients, secondary primary tumors were detected. The 3-year overall and cause-specific actuarial survival rates were 95.7 % and 87.5 % , respectively. CONCLUSIONS: Although prolonged hospitalization and delaying physiological functions can be termed as disadvantages of SPL-CHP, the operation is a reliable and oncologically valid procedure in selected cases of cancer of the larynx who would otherwise be operated by total laryngectomy.

Adult↗

[Secondary malignant tumors of the parotid].

AIM OF THE STUDY: Secondary malignant tumors of the parotid gland are uncommon. They arise from primary tumors located in the head and neck or from distant primary tumors. The formers are dominated by squamous cell carcinomas and melanomas, the latters by renal and lung cancers. Distinction between malignant primary tumors and metastasis of other primary tumors to the parotid gland is very important to appreciate, because the result of this will change therapeutic procedure and the evaluation of prognosis. METHODS: A series of 23 patients with tumors metastatic to the parotid gland are reported. All clinical and pathological data were reviewed. The management of secondary tumors of the parotid gland and the results were analyzed in order to try to identify common features and implications for management. RESULTS: The most frequent histologic types were squamous cell carcinoma and melanoma. Most primary tumors occurred in the head and neck. Metastasis to the parotid gland presented with a median time of 18 months after diagnosis of the primary tumor. All the patients had a parotid mass. No patient had facial nerve weakness. Parotid metastases were treated by superficial parotidectomy with preservation of the facial nerve in all cases, associated in 14 cases with a homolateral selective neck dissection and in 6 cases with a homolateral radical neck dissection. Twenty-one patients were submitted to radiation therapy. Seven patients died after the treatment: in 3 cases, death was due to a local recurrence with cervical relapse; 4 patients presented cervical and metastatic lesions. CONCLUSION: This retrospective review confirmed that patients with involvement of cervical nodes and metastatic parotid tumors have a worse prognosis than those without involvement of cervical nodes. The addition of postoperative radiotherapy provides no additional benefit.

Adult↗

Carcinoma of the minor salivary glands: results of surgery and combined therapy.

PURPOSE: This article reports the results of treatment of 7 histologic types of minor salivary gland carcinoma. PATIENTS AND METHODS: Of 256 cases, local excision was used in 194, extended excision in 62, excision accompanied by neck dissection in 98, and surgery with adjunctive radiation therapy or chemotherapy in 101. Forty-five of the 98 neck dissection cases had cervical node metastases. RESULTS: Survival rates were analyzed for 233 patients. The 3-year survival rate was (167 of 215) (77.67%), the 5-year survival rate was 134 of 187 (71.76%), and the 10-year survival rate was 79 of 113 (69.91%). CONCLUSIONS: These data confirm that surgery is still the mode of choice in the treatment of minor salivary gland carcinoma, but a combination with radiation therapy or chemotherapy is advisable in some patients.

Adenocarcinoma↗

Diagnostic work-up and outcome of cervical metastases from an unknown primary.

CONCLUSIONS: An intensive diagnostic work-up including (18)F-fluorodeoxyglucose positron emission tomography (FDG-PET) detects many unknown primary tumours, leads to a low emergence rate of primary tumours, and selects carcinoma of unknown primary with much more favourable results after neck dissection and postoperative radiotherapy. OBJECTIVE: To investigate the optimal diagnostic approach and best treatment modality for rare head and neck cancer of unknown primary. PATIENTS AND METHODS: In a retrospective study, 69 patients admitted from 1987 to 2002 with cervical lymph node metastases without apparent primary were reviewed. Test characteristics of all diagnostic procedures were calculated. Disease-free and overall survival rates were calculated. Major prognostic factors were analysed uni-variously. RESULTS: At the primary site FDG-PET showed the best sensitivity with 69% and the highest negative predictive value with 87%. Computed tomography and magnetic resonance imaging had a better specificity with 87% and 95%, respectively. The primary tumour was detected in 23 cases (33%). Frequent primary tumour origin was the palatine tonsil (n=8, 35%), base of the tongue (n=6, 26%) and lung (n=4, 17%). All patients with unknown primary were treated by neck dissection. Adjuvant radiotherapy was performed in 26 patients (57%), concurrent radiochemotherapy was performed in 12 patients (26%). The primary emergence rate was 7%. The 5-year overall survival rate was inferior in patients with detected primary in comparison with patients with unknown primary (22% versus 52%). Significant prognostic factors in case of unknown primary were M stage, smoking, alcohol consumption and tonsillectomy. Radiotherapy but not chemotherapy with carboplatin influenced the overall survival.

Adult↗

Malignant melanoma of the scalp.

Malignant melanoma of the scalp has a significantly worse prognosis than cutaneous melanoma arising in other head and neck sites. In this series, 125 patients were treated for Stage I invasive melanoma of the scalp and followed 3 to 19 years. Survival rates for these patients were calculated on the basis of several factors. Survival after treatment was not affected by the age and sex of the patient, size and site of the primary, or treatment of the primary lesion, although local failure was higher among those treated by primary excision and closure. Patients undergoing elective neck dissection with histologically negative nodes had significantly better survival rates than those with histologically positive nodes or patients in whom a neck dissection was not performed.

Adolescent↗

The distribution of lymph node metastases in supraglottic squamous cell carcinoma: therapeutic implications.

BACKGROUND: The treatment of the neck in cancer of the upper aerodigestive tract is still a matter of controversy, even though nowadays there is a trend in the literature toward elective surgery in the N0 neck when the probability of occult lymph node metastasis is greater than 20%. In the elective setup, every effort is made for preservation of uninvolved nonlymphatic structures in positive neck. The aim of this study is to analyze in a large cohort of patients treated for supraglottic carcinoma the prevalence of lymph node metastases and their distribution through various neck levels to redefine our policy of neck treatment. METHODS: A retrospective review of 402 consecutive patients, who underwent surgery in the Department of Otolaryngology of the University of Brescia (Italy) for supraglottic squamous cell carcinoma in a 14-year period, has been performed. The prevalence of neck metastases was assessed by pT category and site (marginal vs vestibular) of the primary tumor. The side(s) of neck disease was related to the side of the primary tumor, whether lateral or central. The distribution of involved lymph nodes through the neck levels was determined. RESULTS: Overall lymph node metastases accounted for 40%; their prevalence rate increased with pT category from 10% to 57% (p =.0001). Occult metastases were found in 26% of N0 patients from 0% in pT1 to 40% in pT4 (p =.02). There was no difference in metastases rate between marginal vs vestibular, and central vs lateral neoplasms, whereas bilateral metastases were more frequent in central tumors (20% vs 5%; p <.0001). Level IV was involved only in association with level II and/or level III. Levels I and V were rarely involved when overt metastases were present and never by occult metastases. CONCLUSIONS: Elective lateral neck dissection (levels II-IV) is recommended in T2-T4 N0 supraglottic cancers; clearance of both sides of the neck is indicated whenever the lesion is not strictly lateral. We still perform a selective neck dissection including levels II-V whenever there is clinical, radiologic, or intraoperative evidence of metastases at any level.

Adult↗

Lymphoscintigraphy for sentinel node mapping using a hybrid single photon emission CT (SPECT)/CT system in oral cavity squamous cell carcinoma.

BACKGROUND: We assessed the added clinical value of fused single photon emission computed tomography (SPECT) and low-dose CT images compared with planar images for sentinel node (SN) mapping in patients with oral cavity squamous cell carcinoma (SCC). METHODS: Twenty consecutive patients with newly diagnosed biopsy-proven SCC of the oral cavity were enrolled. Scintigraphy was performed using a hybrid gamma-camera/low-dose CT system. Planar images and fused SPECT/CT images were interpreted separately. All patients underwent a sentinel node biopsy (SNB) followed by a neck dissection. All SNs underwent meticulous pathologic examination and immunohistochemistry staining (cytokeratin complex) in addition to routine pathologic examinations of the neck dissection specimen. RESULTS: The sensitivity for the detection of nodal metastases was 87.5%. SPECT/CT improved SN identification and/or localization compared with planar images in 6 patients (30%). CONCLUSIONS: SPECT/CT SN mapping provides additional preoperative data of clinical relevance to SNB in patients with oral cavity SCC.

Aged↗

Sentinel node biopsy in oral cavity cancer: correlation with PET scan and immunohistochemistry.

BACKGROUND: Lymphoscintigraphy and sentinel node biopsy (LS/SNB) is a minimally invasive technique that samples first-echelon lymph nodes to predict the need for more extensive neck dissection. METHODS: We evaluated this technique in 18 oral cavity cancers, stages T1-T3, N0. Patients underwent CT and positron emission tomography (PET) of the neck, followed by LS/SNB, frozen section, immediate selective neck dissection, definitive histology, and immunoperoxidase staining for cytokeratin. Histopathology of the sentinel node was correlated with that of the neck specimen. RESULTS: There were 10 true positives: 6 identified on frozen section; 2 on permanent histology; and 2 only on immunoperoxidase staining. In six, the sentinel node was the only positive node. There were seven true negatives and one false negative. CONCLUSIONS: Gross tumor replacement of lymph node architecture may obstruct and redirect lymphatic flow. Overall LS/SNB holds promise for oral cancer.

Adult↗

[The N0 neck in patients treated by supraglottic laryngectomy: abstention, surgery or radiotherapy?].

The authors examined the therapeutical approach to the N0 neck in patients submitted to supraglottic laryngectomy (SL). In these patients the choice of the therapeutical protocol may consist of simple abstention, of neck dissection or of elective radiotherapy: every decision has to be taken considering all specific inconveniences of each option. In their report the authors examined the follow-up of the N0 necks of 421 patients submitted to SL from 1970 to 1991. The patients submitted to wait and see policy were 225 whereas 196 received uni- or bilateral neck dissection. After the cervical failure's salvage the final 3-years control of the neck was the same in the two groups (91.1% vs 91.4%). In a previous research on 1157 N0 necks of patients submitted to total laryngectomy they observed a 5-years cervical control of 88.8% after wait and see policy and of 92.3% after elective radiotherapy. The conclusions of the authors is that no one of the two protocols is preferable to the other one and that subsequently in many cases of supraglottic T1 and T2 cancers a wait and see policy may be justified in absence of consistent counter-indications.

Carcinoma, Squamous Cell↗

[Epithelioid sarcoma of the parotid region].

BACKGROUND: Epithelioid sarcoma has been described in 1970 by Enzinger as a separate tumor entity. It is a rare soft-tissue tumor mostly found in the distal extremities in young adults. The head and neck region is only very infrequently affected. PATIENT AND RESULT: We report the rare case of a manifestation of an epithelioid sarcoma in the area of the right parotid gland in a 72-year-old patient. Only two more cases with a similar tumor entity and location have been described in the international literature. The patient underwent total parotidectomy, radical neck dissection, and postoperative radiotherapy two years ago and has been free of recurrence since then. CONCLUSIONS: Epithelioid sarcomas of the head and neck are very rare tumors. They are treated by radical local tumor removal, neck dissection, and postoperative radiotherapy. Prolonged postoperative follow-up is necessary since recurrences can occur after up to more than 15 years.

Adult↗