A major SNP resource for dissection of phenotypic and genetic variation in Pacific white shrimp (Litopenaeus vannamei).

Bioinformatics and re-sequencing approaches were used for the discovery of sequence polymorphisms in Litopenaeus vannamei. A total of 1221 putative single nucleotide polymorphisms (SNPs) were identified in a pool of individuals from various commercial populations. A set of 211 SNPs were selected for further molecular validation and 88% showed variation in 637 samples representing three commercial breeding lines. An association analysis was performed between these markers and several traits of economic importance for shrimp producers including resistance to three major viral diseases. A small number of SNPs showed associations with test weekly gain, grow-out survival and resistance to Taura Syndrome Virus. Very low levels of linkage disequilibrium were revealed between most SNP pairs, with only 11% of SNPs showing an r(2)-value above 0.10 with at least one other SNP. Comparison of allele frequencies showed small changes over three generations of the breeding programme in one of the commercial breeding populations. This unique SNP resource has the potential to catalyse future studies of genetic dissection of complex traits, tracing relationships in breeding programmes, and monitoring genetic diversity in commercial and wild populations of L. vannamei.

Reconstruction of large defects postmandibulectomy for oral cancer using plates and myocutaneous flaps: a long-term follow-up.

A series of 28 consecutive cases of mandibular reconstruction by means of reconstructive plates and myocutaneous flaps were reviewed. In all cases mandibular resection was indicated for treatment of squamous cell carcinoma of the oral cavity: 25 pelviglossomandibulectomies (resulting in large defects from the angle of the mandible), 2 Commando operations (resulting in lateral defects) and 1 anterior sectional mandibulectomy (resulting in an anterior defect). Tumour stages were T1-T2 (4 cases) and T3-T4 (24 cases). Success was defined as plate maintenance 6 months' postoperatively/postradiotherapy. The overall success rate was 32.2%. Lateral-centre-lateral (L-C-L) defects had 32% success, L (lateral) defects had 50% success and in the single case of a C (centre) defect, the plate was not maintained. Stainless steel reconstruction plates showed a similar success rate as titanium plates (30% versus 34%). In cases not submitted to radiotherapy there were more maintained plates than in cases that received radiotherapy (45.5% versus 23.6%). Reconstruction plates are not effective in bridging large defects of the resected mandible. Only in selected cases that are not eligible for microvascular free flaps should plates and myocutaneous flaps be considered as an option for mandibular reconstruction.

Sites of recurrence in oral and oropharyngeal cancers according to the treatment approach.

OBJECTIVE: The purpose of this study is to evaluate the rates and the sites of tumour recurrence in patients with oral and oropharyngeal carcinomas. DESIGN: This is a retrospective study of a series of cases treated in a single institution. PATIENTS AND METHODS: A series of 2067 patients with oral and oropharyngeal squamous carcinoma, treated from 1954 to 1998 were analysed. The treatment approach was: surgery, 624 cases (30.2%); radiotherapy alone, 729 cases (35.3%); radiotherapy and surgery, 552 cases (26.7%) and radiotherapy and chemotherapy, 162 cases (7.8%). MAIN OUTCOME MEASURES: Tumour recurrence was observed in 1079 patients (52.2%): 561 cases of local recurrences (27.1%); 168 neck recurrences (8.1%); 252 locoregional recurrences (12.2%); 59, distant metastasis (2.9%) and 39 (1.9%), combination of distant metastasis with local, neck or locoregional recurrence. RESULTS: The rates of recurrence varied significantly according to the treatment performed. Oral cavity cancer patients undergoing radiotherapy alone or in combination with chemotherapy presented the highest rates of neck recurrences (22.5 and 40.0%, respectively) for clinical stage (CS) I/II and of local (41.2 and 30.1%) and locoregional (21.7 and 31.1%) recurrences for CS III/IV; yet, for CS III/IV, surgery without neck dissection was associated with the highest rates of neck recurrences (20.7%), but no differences were observed in the rates of local or locoregional recurrences for CS I/II patients. For oropharynx cancer patients with CS I/II there was no difference in the rate of locoregional failures according to the treatment. However, patients with CS III/IV undergoing radiotherapy present a highest rate of local (42.3%) and locoregional (28.8%) failures. CONCLUSION: The results suggest that surgery should be the first option for initial clinical stage oral and oropharyngeal cancers. For advanced cases independently of the site of the tumour, surgery and postoperative radiotherapy should be the standard of care because it is associated with the lowest rates of locoregional recurrence.

Sites of recurrence in oral and oropharyngeal cancers according to the treatment approach / Locais de recorrência em câncer oral e orofaringeal de acordo com o tratamento abordado

OBJECTIVE: The purpose of this study is to evaluate the rates and the sites of tumour recurrence in patients with oral and oropharyngeal carcinomas. DESIGN: This is a retrospective study of a series of cases treated in a single institution. PATIENTS AND METHODS: A series of 2067 patients with oral and oropharyngeal squamous carcinoma, treated from 1954 to 1998 were analysed. The treatment approach was: surgery, 624 cases (30.2 percent); radiotherapy alone, 729 cases (35.3 percent); radiotherapy and surgery, 552 cases (26.7 percent) and radiotherapy and chemotherapy, 162 cases (7.8 percent). MAIN OUTCOME MEASURES: Tumour recurrence was observed in 1079 patients (52.2 percent): 561 cases of local recurrences (27.1 percent); 168 neck recurrences (8.1 percent); 252 locoregional recurrences (12.2 percent); 59, distant metastasis (2.9 percent) and 39 (1.9 percent), combination of distant metastasis with local, neck or locoregional recurrence. RESULTS: The rates of recurrence varied significantly according to the treatment performed. Oral cavity cancer patients undergoing radiotherapy alone or in combination with chemotherapy presented the highest rates of neck recurrences (22.5 and 40.0 percent, respectively) for clinical stage (CS) III and of local (41.2 and 30.1 percent) and locoregional (21.7 and 31.1 percent) recurrences for CS IIIIV; yet, for CS IIIIV, surgery without neck dissection was associated with the highest rates of neck recurrences (20.7 percent), but no differences were observed in the rates of local or locoregional recurrences for CS III patients. For oropharynx cancer patients with CS III there was no difference in the rate of locoregional failures according to the treatment. However, patients with CS IIIIV undergoing radiotherapy present a highest rate of local (42.3 percent) and locoregional (28.8 percent) failures. CONCLUSION: The results suggest that surgery should be the first option for initial clinical stage oral and oropharyngeal cancers. For advanced cases independently of the site of the tumour, surgery and postoperative radiotherapy should be the standard of care because it is associated with the lowest rates of locoregional recurrence

Involvement of level I neck lymph nodes in advanced squamous carcinoma of the larynx.

This study was performed to evaluate the incidence of metastasis at level I in patients with squamous laryngeal cancer. One hundred consecutive patients with squamous carcinoma of the larynx were submitted to surgical treatment including radical neck dissection. The tumor stage was T3 or T4, and the neck stage was N1-N2c. Lymph node metastases were pathologically confirmed in 80 patients. Metastases were concentrated within level II in 59% of cases, level III in 17% of cases, level IV in 11% of cases, and level V in 6% of cases. Only 2 patients (2%) had detectable tumors in the lymph nodes of the submandibular triangle (level IB). This study shows that patients with laryngeal cancer rarely present metastases at the submandibular triangle, even in advanced local disease with cervical metastasis staged as N1 to N2c. Therefore, dissection of the submandibular triangle is indicated only in the presence of clinical, radiographic, or cytologic evidence of metastatic disease at level I.

Multivariate analysis of risk factors for neck metastases in surgically treated parotid carcinomas.

OBJECTIVE: To analyze risk factors for neck metastases in patients with parotid carcinomas. DESIGN: Cohort of patients followed up from 1 to 366.2 months at a single institution. SETTING: Referral center, private or institutional practice, hospitalized care. PATIENTS: A total of 145 patients with parotid carcinomas with complete clinical and pathological information. The histological diagnosis was reviewed according to the World Health Organization classification for salivary gland tumors. INTERVENTION: Patients were treated by surgery alone (62 cases) or with postoperative radiotherapy (83 cases). A neck dissection was performed in 80 patients. MAIN OUTCOME MEASURE: Rates of neck lymph node metastasis. Univariate and multivariate analyses were carried out using logistic regression evaluating the significance of demographic, clinical, and pathological data. RESULTS: The following variables were significantly associated to the risk of lymph node metastasis by univariate analysis: histological type (P<.001), T stage (P<.001), desmoplasia (P = .001), facial palsy (P = .02), perineural invasion (P = .01), extraparotid tumor extension (P = .02), and necrosis (P = .003). By multivariate analysis, histological type (P<.001), T stage (P = .03), and desmoplasia (P = .006) had the highest correlation with lymph node metastasis. CONCLUSION: The significant risk factors for neck metastasis in parotid carcinoma were histological type (ie, adenocarcinoma, undifferentiated carcinoma, high-grade mucoepidermoid carcinoma, squamous cell carcinoma, and salivary duct carcinoma), T stage (T3 and T4), and desmoplasia (severe).

Prognostic significance of the distribution of neck node metastasis from oral carcinoma.

BACKGROUND: Carcinoma of the oral cavity presents a high risk for neck metastasis, which reduces the probability of regional control and survival. OBJECTIVES: The main objective of this study is to analyze prognostic implications of the distribution of neck metastasis in 513 patients with squamous cell carcinoma of the oral cavity. PATIENTS AND METHODS: All patients underwent surgery from 1970-1992. Tumor stages were I, 63; II, 120; III, 173; and IV, 157. Neck dissections were performed in 448 patients (115 bilateral). RESULTS: By use of multivariate regression techniques the level of lymph node involvement was the most important prognostic factor (relative risks from 1.8 to 2.5). The following variables were also associated with prognosis: mobility of lymph nodes, sex, T stage, age, and tumor thickness. CONCLUSIONS: The level of ipsilateral lymph node involvement was the most significant prognostic factor patients with in oral cancer who underwent surgical treatment. A significant decrease in survival also was seen with regard to the involvement of multiple contralateral lymph nodes. Our results support the indication of elective neck dissections in high-risk patients because among the cases that had metastases at follow-up, 50% were not candidates for salvage treatment.

Ipsilateral neck cancer recurrences after elective supraomohyoid neck dissection.

DESIGN: Retrospective analysis of a case series. SETTING: Referral center, private or institutional practice, hospitalized care. OBJECTIVE: To analyze the level (site) of ipsilateral neck recurrences after supraomohyoid (SOH) dissection in patients with lip, oral, and oropharyngeal cancer treated in a single institution. INTERVENTION: Supraomohyoid neck dissection. PATIENTS AND METHODS: From 1979 to 1997, 154 patients with oral and oropharyngeal carcinoma and no palpable lymph nodes at the neck underwent ipsilateral elective SOH dissection. RESULTS: Tumor sites were the lip, 5 cases (3.3%); oral cavity, 128 cases (83.1%); and oropharynx, 21 cases (13.6%). Tumor stages were T1, 13 cases (8.4%); T2, 77 cases (50.0%); T3, 40 cases (27.0%); and T4, 22 cases (14.3%). There were 7 cases (4.5%) of ipsilateral neck recurrences. Three were beyond the limits of the SOH dissection, and 4 were inside these limits. There was no association of neck recurrences with the pathological status of the lymph nodes. Six of the 7 recurrences were in patients who underwent postoperative radiotherapy. CONCLUSIONS: The incidence of neck recurrence after selective neck dissection was 4.5%, and it occurred either inside (57.1%) or beyond (42.9%) the limits of the selective neck dissection.

Bilateral radical neck dissection: results in 193 cases.

BACKGROUND AND OBJECTIVES: Indications of simultaneous bilateral radical neck dissection remains controversial. The main objectives of this analysis were to study: a) the frequency of postoperative complications, b) the patterns of metastatic lymph nodes in the surgical specimen, c) the predictive factors of neck recurrences, d) the prognostic factors related to overall survival. METHODS: A retrospective review of results in 193 consecutive patients submitted to a simultaneous bilateral radical neck dissection from 1960-1990. RESULTS: Postoperative complications occurred in 60.8% of the cases. The most frequent ones were: fistula, wound infection, flap dehiscence and necrosis. There were four postoperative deaths (2.7%). The lymph nodes most frequently involved were of the upper jugular and upper accessory groups. Only patients with lip and paranasal sinus tumors never presented metastatic nodes at Levels IV and V. Tumor recurrences were more common at the ipsilateral neck (13.5%) or at distant sites (12.4%). The predictive factors of neck recurrences were: age, N stage, ipsilateral metastasis at Level II, and contralateral metastasis at Levels II and IV. The overall 5-year survival rates for the two age groups, that is, younger than 40 and older than 40 years of age, were respectively, of 8.5% and 35.6% (P = 0.0296). There were no survivals among the group of patients with neck lymph nodes staged as N3 or Nx. The overall 5-year survival rates were significantly influenced by contralateral metastatic lymph nodes at any level. The results of multivariate analysis using the Cox regression technique, showed that Level II ipsilateral metastatic lymph nodes, Levels II and IV contralateral metastatic lymph nodes, and age were the independent predictors of the risk of death. CONCLUSIONS: This study demonstrates that simultaneous bilateral neck dissection has a high morbidity and should be contraindicated as an elective procedure. Further studies with selective neck dissections are warranted.

Prognostic factors in supraglottic carcinoma patients treated by surgery or radiotherapy.

The decision regarding treatment of supraglottic carcinoma remains controversial, despite recent advances in radiotherapy and surgical procedures. The need to evaluate the prognostic importance of demographic, clinical, pathologic, and treatment-related variables prompted this study. The patient population was of 164 consecutive cases of supraglottic carcinoma. Clinical charts were reviewed and cases were restaged according to the 1987 version of the UICC-AJC classification based on the initial clinical description: 18 T1, 30 T2, 58 T3, 58 T4, 61 NO, 24 N1, and 79 N2a-N3. Management policy for these patients varied during the study, reflecting different opinions of the responsible physicians and technical advances. Seventy-seven patients (47%) underwent surgery, patients who underwent surgery and radiotherapy, respectively, remained alive with no evidence of disease. The 5-year actuarial survival rates were 58.5% for patients initially treated by surgery, and 16.3% for patients in the radiotherapy group. Although several demographic, clinical, and pathologic variables were studied, only initial treatment (p <.0001), N stage (p = .0003), and T stage (p = .0017) were deemed to have independent prognostic value by multivariate regression techniques based on Cox's proportional hazards model. This study has shown that survival of supraglottic carcinoma patients depends on the treatment modality, T stage, and N stage. Our results are disappointing with regard to radiotherapy as a treatment for supraglottic carcinoma in patients with tumors at clinical stages III and IV.

Major glossectomy: end results of 106 cases.

Advanced cancers of the oral cavity continue to be a therapeutic challenge. Despite significant improvements in radiotherapeutic techniques and adjuvant chemotherapy, patients usually die after a short period. Recent progress in reconstructive techniques has made major glossectomy (subtotal, near total, total or extended total) a reasonable palliative and potentially curative approach. It is the purpose of this study to report a series of 106 patients treated from 1985 to 1994 regarding surgical complications and prognosis. All but 1 patient undergoing major glossectomy had squamous cell carcinoma. Primary tumour sites were oral tongue (50 cases), base of the tongue (18 cases), floor of the mouth (28 cases) and other parts of the mouth (10 cases). Tumour stages were: 25 T3, 57 T4, 24 Tx, 34 N0, 20 N1, 32 N2a-N3, 20 Nx. The types of glossectomy were as follows: 24 subtotal, 31 near total and 51 total. A total laryngectomy was performed in only 6 cases. A neck dissection was performed in all but 3 patients: 12 unilateral radical neck dissection (RND), 1 unilateral supra, omohyoid (SOH), 39 simultaneous bilateral RND, 8 simultaneous bilateral SOH, and 43 RND associated to contralateral SOH. A pectoralis major myocutaneous flap was used to repair the operative defect in 96 cases. Complications were seen in 52 cases (49%). The most common complications were wound infection (17 cases), flap necrosis (15 cases) and fistula (15 cases). Significant transient aspiration was seen in 8 patients. At the study closing date, 30 patients were alive without disease, 5 had recurrent disease, 47 died of cancer, 14 died of causes not related to cancer or treatment and 10 were lost to follow-up. The 5-year actuarial survival rates were, respectively, 45%, 18% and 18% for T3, T4 and Tx. Other significant variables were pN stage (P = 0.0672) and year of admission (0.0318). In conclusion a major glossectomy without laryngectomy whenever possible is a safe procedure for a selected group of patients with advanced tongue and floor of the mouth cancer. The actuarial survival rates presented suggests that, in a very select group of patients, major glossectomy is a surgical procedure to be considered.

Major glossectomy: end results of 106 cases / Glossectomia maior: resultados concluidos de 106 casos

Advanced cancers of the oral cavity continue to be a therapeutic challenge. Despite significant improvements in radiotherapeutic techniques and adjuvant chemotherapy, patients usually die after a short period. Recent progress in reconstructive techniques has made major glossectomy (subtotal, near total, total or extended total) a reasonable palliative and potentially curative approach. It is the purpose of this study to report a series of 106 patients treated from 1985 to 1994 regarding surgical complications and prognosis. All but 1 patient undergoing major glossectomy had squamous cell carcinoma. Primary tumour sites were oral tongue (50 cases), base of the tongue (18 cases), floor of the mouth (28 cases) and other parts of the mouth (10 cases). Tumour stages were: 25 T3, 57 T4, 24 Tx, 34 N0, 20 N1, 32 N2a-N3, 20 Nx. The types of glossectomy were as follows: 24 subtotal, 31 near total and 51 total. A total laryngectomy was performed in only 6 cases. A neck dissection was per-formed in all but 3 patients: 12 unilateral radical neck dissection (RND), 1 unilateral supra, omo-hyoid (SOH), 39 simultaneous bilateral RND, 8 simultaneous bilateral SOH, and 43 RND associated to contralateral SOH. A pectoralis major myocutaneous flap was used to repair the operative defect in 96 cases. Complications were seen in 52 cases (49 per cent). The most common complications were wound infection (17 cases), flap necrosis (15 cases) and fistula (15 cases). Significant transient aspiration was seen in 8 patients. At the study closing date, 30 patients were alive without disease, 5 had recurrent disease, 47 died of cancer, 14 died of causes not related to cancer or treatment and 10 were lost to follow-up. The 5-year actuarial survival rates were, respectively, 45 per cent, 18 per cent and 18 per cent for T3, T4 and Tx. Other significant variables were pN stage (P=0.0672) and year of admission (0.0318). In conclusion a major glossectomy without laryngectomy whenever possible is a safe procedure for a selected group of patients with advanced tongue and floor of the mouth cancer. The actuarial survival rates presented suggests that, in a very select group of patients, major glossectomy is a surgical procedure to be considered

Factors influencing contralateral metastasis and prognosis from pyriform sinus carcinoma.

BACKGROUND: The presence of neck metastasis reduces the probability of regional control and survival. The purpose of this study is to identify risk factors for contralateral neck metastasis in a series of 218 patients with pyriform sinus carcinoma. PATIENTS AND METHODS: Tumor stages were: 31 T1-T2, 187 T3-T4, 40 N0, 174 N1-N3, and 4 NX. A total of 182 patients (83%) had metastatic lymph nodes (23 in the contralateral neck). RESULTS: Thirty-five patients presented neck recurrences (27 in contralateral undissected neck). Logistic regression identified T and N stages, epilarynx and posterior pharyngeal wall involvement, hemilarynx fixation, and ipsilateral level 1 metastasis as important predictors of contralateral metastasis. Five-year survival rates were 41% (pN0), 23% (contralateral pN0), and 31% (contralateral positive nodes). CONCLUSIONS: The contralateral side of the neck was the most common site of recurrence. A lateral neck dissection is advisable for the contralateral side of the neck for high-risk patients.

A case-control study on complications and survival in elderly patients undergoing major head and neck surgery.

BACKGROUND: Several studies in the literature have shown that older patients have a poor prognosis after the treatment of cancer. They are frequently considered to have a high surgical risk and undergo substandard treatment. PATIENTS AND METHODS: This case-control study analyzes complications, mortality, and survival in 115 patients 70 years of age or older and 115 controls matched by site and clinical stage. Most tumors were located at the oral cavity, salivary glands, pharynx, or larynx. RESULTS: The frequency of postoperative complications, mortality, and recurrences were similar in both groups. Twenty elderly patients and 9 controls died due to causes not related to cancer. The 5-year survival rates were 43% for the elderly patients and 55.6% for the control patients (P = 0.1038). CONCLUSION: The main causes of death in the elderly patients were not related to cancer or treatment complications. This emphasizes the need for the use of standard treatment for all patients who remain in good medical status.

Infrahyoid myocutaneous flap in head and neck reconstruction.

Infrahyoid myocutaneous flap is one of the alternatives to be considered for the reconstruction of moderate defects following resection of the oral cavity, oropharynx, or hypopharynx cancers. The flap is based on the uni- or bilateral superior thyroid pedicle; its major limitations are due to small flap volume and arc of rotation. The authors reviewed a series of 15 consecutive patients with carcinomas of the oral cavity or pharynx who underwent radical surgical resections followed by immediate reconstruction using an infrahyoid myocutaneous flap. Four of five cases with prior irradiation presented complications. The incidence of flap necrosis in this series (47%) was higher than that reported by others (10%). We consider the presence of massive neck metastasis and prior irradiation contraindications to the use of this flap.

End results of 114 extended "commando" operations for retromolar trigone carcinoma.

Retromolar trigone carcinomas invade the mandible and the pterygoid and/or masseter muscles in a large number of cases. There is also a significant risk of ipsilateral lymph node neck metastasis. The purpose of this retrospective study was to report the survival results of 114 consecutive patients who underwent an extended "commando" operation (retromolar operation) from 1960 to 1991. The technique is a variation of a composite resection. The operation consists of hemimandibulectomy with resection of the pterygoid and masseter muscles, with an ipsilateral neck dissection (radical classical, modified, or supraomohyoid). The oral cavity and oropharyngeal defects were closed primarily in 83 patients. In the remaining 31 patients (27.2%), it was reconstructed by a tongue flap (12 patients), pectoralis major myocutaneous flap (10 patients), and other flaps (9 patients). There were 104 men and 10 women, with a median age of 55 years. All patients had squamous cell carcinoma. Tumor stages were T1 (5 patients), T2 (44 patients), T3 (24 patients), T4 (28 patients), and Tx (13 patients). The metastases were predominantly in levels I and II. Only patients with positive nodes at levels I and/or II had histologically positive nodes at levels IV or V. Complications occurred in 51.8% of the patients (wound infection in 21 patients, 18.4%). Sixty-six patients underwent postoperative irradiation (4 to 70 Gy, median: 50 Gy). To date, 41 patients have presented with 50 tumor recurrences: 31 local, 9 in the dissected neck, 3 in the contralateral neck, and 7 distant. The 5-year actuarial overall survival rate was 80.0% in patients with T1 tumors, 57.8% in those with T2 tumors, 46.5% in those with T3 tumors, and 65.2% in those with T4 tumors. In conclusion, the retromolar operation can be performed with acceptable morbidity, and it is effective (5-year overall survival rate of 55.3%). The rate of local recurrences (27.2%) suggests that radiotherapy as an adjunctive modality should be indicated in patients in whom recurrences are likely.

Supraomohyoid neck dissection in the treatment of head and neck tumors. Survival results in 212 cases.

Elective supraomohyoid neck dissection is considered part of standard treatment of oral and oropharyngeal cancer in most institutions, but its role in the treatment of clinically positive neck cancer remains a subject of controversy. The main object of this study is to report the results of 212 consecutive patients who underwent supraomohyoid neck dissections from 1954 to 1990. Most patients had squamous cell carcinoma of the oral cavity. Eighty-six patients (40.6%) had histologically positive lymph nodes in the surgical specimen (sensitivity, 0.55; specificity, 0.53). At the study closing date there were 58.8% actuarial 10-year overall survival rates. Forty-five patients (21.2%) had 50 tumor recurrences (32 local, 13 regional, five distant), and in 40 patients (18.8%) a second primary tumor was diagnosed. A multivariate regression technique based on Cox's proportional hazards model was used, and age (65 years or younger vs older than 65 years) represented the variable with the highest predictive strength with respect to overall survival (relative risk, 2.3). Tumor site, sex, and histologically proved metastasis were also associated with overall survival rates. The same variables were also related to the risk of recurrence. In conclusion, the death rate is mainly related to the control of the primary site tumor and the occurrence of a second primary tumor rather than to neck recurrences. It confirms that supraomohyoid neck dissection is an adequate elective procedure and possibly sufficient in the treatment of a selected group of patients with lip cancer with positive nodes at level 1.

Critical analysis of methods of reconstruction of exenterated orbits.

Reconstructive procedures were used on 14 patients who had undergone orbital exenteration and radiotherapy for malignant tumours. All patients were tumour free after a follow-up of between 5 and 18 years. Reconstruction was carried out in 3 stages. In the first operation the orbit was filled, in the second the orbital rims and eyelids were shaped, and in the third a cavity for a static eye prosthesis was created. Critical assessment of results showed that the first stage alone produced a marked improvement in appearance and occluded existing fistulae. The subsequent procedures improved aesthetic results further. Difficulties were encountered from retraction of the tissues and insufficient tissue mobility.