En este tipo de pacientes puede haber malignidades mucocutáneas como el sarcoma de Kaposi, carcinoma epidermoide, epitelioma basocelular y de las extra. grupo: carcinoma basocelular (el más frecuente), carcino- ma epidermoide y el carcinoma originado en anexos; este último es poco frecuente, su prevalencia. El tumor maligno más frecuente es el carcinoma basocelular, seguido del epidermoide y del melanoma. Suelen diagnosticarse en etapas tardías y tener mal.
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During recent years, we have witnessed many technological advances in electronic publication. The accessibility and wide diffusion of on-line publication will provide the opportunity for our scientific colleagues, not only in Latin America, but throughout the world, to share the knowledge and skills of our Mexican surgical community, as well as to provide authors from other countries with a forum for participating in our Journal, in order that we may gain knowledge of surgical specialties throughout the world.
Manuscripts will be accepted in Spanish and in English, and will be translated to English or Spanish for on-line publication. Guidelines for manuscript submission can be accessed in this website. We are confident that this evolution in publication will serve the needs of the international community, as well as to provide our Mexican scientists with greater visibility throughout the global community.
The Mexican Academy of Surgery is pleased to offer this on-line publication without fees or subscription. The Impact Factor measures the average number of citations received in a particular year by papers published in the journal during the two receding years. SRJ is a prestige metric based on the idea that not all citations are the same. SJR uses a similar algorithm as the Google page rank; it provides a quantitative and qualitative measure of the journal’s impact.
SNIP measures contextual citation impact by wighting citations based on the total number of citations in a subject field.
Non-melanoma skin cancer includes basal cell carcinoma and squamous cell carcinoma SCC. Basal cell carcinoma is the most common and least aggressive but in a low percentage of cases, despite appropriate wide surgical margins, it can be aggressive, producing local invasion, recurrences and distance metastasis.
SCC has a more aggressive behaviour invading first the skin, the lymph nodes and less frequently produces distance metastasis. To identify the characteristics of recurrent SCC and frequency of new SCC after conventional surgical and primary closure or closure delayed until a histological reporting of tumour-free surgical margins, in order to achieve a better surgical option, in our Mexican population.
We reviewed clinical records from the last 10 years, and included those with a diagnosis of SCC. One hundred and fourteen tumours in patients were included. The mean new tumour diagnosis was Age range 19—91, with mean The most affected site was the cheek. At year follow-up we found a second SCC in 14 patients and only 4 recurrences, between the 1st and 4th year and 3 were treated with delayed closure until margins were tumour-free. In this study we demonstrated that delayed closure technique is easy and adaptable in our population in the treatment of SCC, achieving good results with very low recurrences at year follow-up.
El carcinoma de piel no melanoma basocelular y el carcinoma epidermoide o espinocelular CEC son tumores frecuentes.
Se incluyeron tumores en pacientes. Non-melanoma skin cancer includes basal cell carcinoma and squamous cell carcinoma. Basal cell carcinoma BCC is the most common skin cancer; it is the least aggressive and generally has a good prognosis.
A very low percentage of BCC behave aggressively with extensive local invasion, recurrences and metastases, despite extensive surgical treatment. However, squamous cell carcinoma SCC behaves more aggressively. In general, a very small proportion of non melanoma skin cancers can behave aggressively, with extensive local invasion, multiple recurrences and occasionally, metastases, even after extensive surgery, 1 and they have major functional, physical and social impact on the patient.
Predominance in females between the sixth and eighth decades of life has been observed in Mexico. The largest series of squamous cell carcinoma, conducted in Mexico, describes this tumour as more common in women, with an average age of 71, and predominating in the face.
In this study the average size of the lesion was 3 cm and most had ulceration. There can be many treatment methods for squamous cell carcinoma; however, surgery is the treatment of choice. For low-grade tumours a surgical safety margin of between 4 mm and 6 mm is recommended and primary closure or reconstruction with flap or graft.
The surgical specimen is sent to the pathology department and if positive in the margins or bed, the patient should be reoperated using a conventional procedure, micrographic Mohs micrographic surgery MMSor receive radiotherapy. For high-grade tumours, MMS is the standard of care or, if this technique is not available, resection with a margin of 1 cm.
Tumours that are not candidates for surgery are sent directly for radiotherapy. Because MMS was not available in our environment due to its high cost, when this technique was required, we excised the tumours with the margins indicated basocelulag to whether the grade was high or low.
If primary closure was not feasible, the surgical defect was left eidermoide until the margins had been confirmed by histopathology: We used this technique because occasionally a flap would be required to close the surgical defect and re-excision would be more difficult if positive surgical margins had been found. To identify the characteristics of squamous cell carcinoma, its recurrence and the epidemroide of onset of new tumours, in our cases, and to identify those treated surgically with direct closure or closure delayed until receiving a tumour-free margin report delayed closureand thus determines optimal treatment behaviours.
The clinical records of patients diagnosed with squamous cell carcinoma who attended the dermatological surgery department of the Hospital General Dr. The epidermoidee variables were obtained from these patients: We used descriptive statistics. One hundred and fourteen tumours were basocelulr, from patients with baoscelular diagnosis of squamous cell carcinoma. Of the total number of patients, 48 The most common site was the cheek Fig. Table 1 shows the demographic characteristics of the case series Fig.
Invasive squamous cell carcinoma at the base of the neck. General characteristics of squamous cell carcinoma in the sample studied. Of the patients with SCC, 14 had a second primary tumour maximum 3. Of these, 6 There were no significant differences in the likelihood of developing a bssocelular SCC between the males and cancef females. Tumours that appeared on the site of the scar of the previous surgery from 6 months onwards were defined as recurrences.
There were only 4 epidermokde 2. With regard to topography, size and histology, no statistically significant differences were found in the recurrence rate. Of the 4 recurring tumours, 3 were treated with delayed closure, which showed no statistically significant association, since there were too few cases to show a tendency.
Of the tumours, 30 The average margin in the tumours studied was 7. Tumours in situ had the smallest margins and infiltrating tumours had the largest. Most cutaneous squamous cell carcinomas are benign and can be cured with conventional surgery. High-risk spinocellular tumours measure more than 2 cm, present on the face, are histologically invasive if thicker than 2 mm with a Clark level greater than ivinvolve perineural invasion and are poorly differentiated.
In situ squamous cell carcinoma is limited to the epidermis and is the precursor to invasive squamous cell carcinoma, which must be treated aggressively and accurately to prevent its progression and worsen the patient’s prognosis. There are many studies on the effectiveness of MMS and the low incidence of recurrence, some with insufficient evidence to compare effectiveness and the different treatments used for SCC. T prompted Dr Chren to analyse 2 university sites with a population of patients and tumours treated with different methods, including excision and MMS.
It must be stressed that in our study, despite having tumours with high-risk factors for recurrence, a recurrence rate of 2. Rpidermoide finding is important, since it offers us the opportunity to provide optimal treatment for cutaneous squamous cell carcinoma at lower cost and in areas that lack the infrastructure to perform the aforementioned surgical technique.
Surgical defect after SCC excision with margin, left open until the histopathological eepidermoide. When this returns tumour-free, the wound will be closed. We must emphasise that one of the cases that recurred was an in situ squamous cell carcinoma, which was treated with the surgical margin indicated in the clinical guidelines.
This leads us to the conclusion that it is likely that, rather than a recurrence, this was a new cancer in an area of field cancerisation with extensive photodamage. The other 3 tumours that recurred were invasive and of an aggressive histological type, which is a very important risk factor for recurrence and metastasis.
Carcinoma De Células Basales
We must suspect recurrence if a skin lesion appears on the scar or an area nearby; it can present as an erythemato-squamous plaque or a tumour ranging from millimetres to centimetres in size. We have learned in the past 2 years that a major recurrence factor for squamous cell carcinoma is the tumour depth in millimetres. Because this is a ten-year retrospective study, we do not have this data for all the tumours we studied, since in previous years this feature was not routinely assessed.
This study demonstrated that the delayed closure technique is economical and can be adapted to other hospitals, and contributes towards the low recurrence rate of cutaneous squamous cell carcinoma lesions, with results that are comparable to those of MMS. The authors declare that no experiments were performed on humans or animals for this study.
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The authors declare that they have followed the protocols of their work epideermoide on the publication of patient data. The authors have obtained the written informed consent of the patients or subjects mentioned in the article.
The corresponding author is in possession of this document. The authors have no conflict of interests to declare. Please cite this article as: Previous article Next article. November – December Pages dancer Characteristics and risk factors for recurrence of cutaneous squamous cell carcinoma with conventional surgery and surgery with delayed intraoperative margin assessment.
This item has received. Under a Creative Commons license. Background Non-melanoma skin cancer includes basal cell carcinoma and squamous cell carcinoma SCC. SCC has a more aggressive behaviour invading first the skin, the lymph nodes and less frequently produces distance metastasis.
Objective To identify the characteristics of recurrent SCC and frequency of new SCC after conventional surgical and primary closure or closure delayed until a histological reporting of tumour-free surgical margins, in order to achieve a better surgical option, in our Mexican population.
Materials and method We reviewed clinical records from the last 10 years, and included those with a diagnosis of SCC. Results One hundred and fourteen tumours in patients were included. At year follow-up we wpidermoide a second SCC in 14 patients and only 4 recurrences, between the 1st and 4th year and 3 were treated with delayed closure until margins were tumour-free. Conclusion In this study we demonstrated that delayed closure technique is easy and adaptable in our population in the treatment of SCC, achieving good results with very low recurrences at year follow-up.
Carcinoma De Células Basales – La Fundación de Cáncer de Piel
Antecedentes El epieermoide de piel no melanoma basocelular y el carcinoma epidermoide o espinocelular CEC son tumores frecuentes. Resultados Se incluyeron tumores en pacientes. Background Non-melanoma skin cancer includes basal cell carcinoma and squamous cell carcinoma. However, squamous cell carcinoma SCC behaves more aggressively.
We used this technique because occasionally a flap would be required to close the surgical defect and re-excision would be more difficult if positive surgical margins had been found.
Objective To identify the characteristics of squamous cell carcinoma, its recurrence and the frequency of onset of new tumours, in our cases, and to identify those treated surgically with direct closure or closure delayed until receiving a tumour-free margin report delayed closureand thus determines optimal treatment behaviours.