Cirugía radical en mujer joven con tumor de ovario borderline de alto grado: a propósito de un caso / Radical surgery in a young woman with a high-grade borderline ovarian tumour: A case report

Los tumores de ovario borderline se caracterizan por exhibir un comportamiento intermedio entre los tumores benignos y los carcinomas invasivos. Generalmente se diagnostican en mujeres en edad reproductiva y estadios iniciales, presentando un pronóstico favorable. En estos casos el tratamiento quirúrgico conservador es el gold standard. Sin embargo, en estadios avanzados sigue existiendo controversia entre realizar una estadificación completa o una cirugía conservadora. Presentamos el caso de un tumor borderline seroso de alto grado en una paciente joven, en el que se realizó un tratamiento quirúrgico radical, incluyendo una revisión de la literatura respecto a las opciones terapéuticas de esta enfermedad.(AU)

Ovarian borderline tumours are characterized by exhibiting an intermediate behaviour between benign tumours and invasive carcinomas. They are generally diagnosed in women of reproductive age and early stages, presenting a favourable prognosis. In these cases, conservative surgical treatment is the gold standard. However, in advanced stages there is still controversy between performing complete staging and conservative surgery. We present the case of a high-grade serous borderline tumour in a young patient in which radical surgical treatment was performed, including a review of the literature regarding the therapeutic options for this pathology.(AU)

¿Cómo podemos ayudar a nuestras pacientes con cáncer ginecológico durante la pandemia de la COVID-19? / How can we help our gynaecological cancer patients during the COVID-19 pandemic?

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Papilomatosis juvenil: revisión a propósito de 2 casos / Juvenile papillomatosis: Review of 2 cases

La papilomatosis juvenil (PJ) es una lesión mamaria benigna, poco frecuente y de carácter proliferativo. Se caracteriza por ser una proliferación exofítica multifocal de varios papilomas dentro de un segmento mamario. Generalmente afecta a mujeres jóvenes de menos de 30 años de edad. Suele presentarse como una tumoración mamaria indolora, simulando un fibroadenoma. La biopsia percutánea guiada por ecografía permitirá detectar la naturaleza de la lesión y descartar patología maligna asociada. Se describe una serie de 2 casos con similar presentación clínica pero difiriendo en el manejo una vez analizados los antecedentes familiares y las circunstancias individuales de cada uno de ellos

Juvenile papillomatosis (JP) is a rare breast lesion of a proliferative and benign nature. It is noted for being a multifocal exophytic proliferation of several papillomas within a breast segment. It usually affects young women under 30 years of age, and usually presents as a painless breast mass, simulating a fibrous adenoma. The ultrasound guided percutaneous biopsy will enable the diagnosis to be confirmed, as well as to rule out any associated malignant disease. A description is presented on series of 2 cases with similar clinical presentation, but differing in management after analysing the family history and the individual circumstances of each of them

Chemotherapy and PARP inhibitors in heavily pretreated BRCA1/2 mutation ovarian cancer (BMOC) patients.

OBJECTIVES: The hallmarks of germline(g) and/or somatic(s) BRCA1/2 mutation ovarian cancer (BMOC) patients are increased sensitivity to platinum-based chemotherapy (PCT) and PARP inhibitors (PARPi). There is little information on the effectiveness of chemotherapy in heavily pretreated (≥3 CT lines) g/sBMOC patients. METHODS: g/sBMOC patients who received CT from 2006 to 2016 at 4 cancer centers in Spain were selected. Overall survival (OS) and time to progression (TTP) were calculated with Kaplan Meier and Cox models. RESULTS: 135 g/sBMOC patients were identified (6% sBRCA1/2 mutations). The median number of chemotherapy lines was 2 (1-7). The 6-years OS rate was 69.4% and 71% in BRCA1 or BRCA2 mutation carriers (p = 0.98). A total of 57 (42%) patients had ≥3 CT lines (3-7), which encompassed a total of 155 treatments. The median overall TTP across all treatment lines beyond 2nd line was 10.2 months (CI 95% 8.4-11.9 months). In the platinum-sensitive setting, TTP was improved with PCT plus PARPi (17.1 m), PCT (12.6 m) or PARPi (12.4 m) versus non-PCT (4.9 m; p < 0.001 all comparisons). In the platinum-resistant setting, these differences in TTP were not statistically significant. A multivariate model confirmed that primary platinum-free interval (PFI) > 12 months and exposure to PCT and PARPi associated with improved outcomes. PARPi exposure did not compromise benefit of subsequent CT beyond 2nd relapse. CONCLUSIONS: Heavily pretreated g/sBMOC demonstrated CT sensitivity, including for non-PCT choices. Primary platinum-free interval (PFI) >12 months and exposure to both platinum-based chemotherapy and PARPi associate with improved prognosis in heavily pretreated g/sBMOC patients.

Correlación de la captación de 18F-FDG de la PET/TC con el Ki67 de la inmunohistoquímica en el cáncer epitelial de ovario pretratamiento / Correlation of 18F-FDG uptake on PET/CT with Ki67 immunohistochemistry in pre-treatment epithelial ovarian cancer

Objetivo. El Standardized uptake value (SUV) y los parámetros volumétricos volumen metabólico tumoral (MTV) y glicolisis total de la lesión (TLG) de la 18F-FDG PET/TC son útiles para determinar el pronóstico preoperatorio y postratamiento del cáncer epitelial de ovario (CEO). El Ki67 es otro marcador pronóstico en el CEO asociado con la agresividad tumoral. El objetivo fue estudiar la asociación entre los parámetros de la 18F-FDG PET/TC y el Ki67 en el CEO pretratamiento para determinar si la PET/TC puede predecir la agresividad tumoral de forma no invasiva. Material y métodos. Se realizó una PET/TC a 18 pacientes con sospecha o recién diagnóstico de CEO. Se obtuvo el SUV máximo (SUVmax), SUV medio (SUVmean) y el MTV y la TLG corporal (wbMTV y wbTLG, respectivamente), con un dintel del 30%-40% del SUVmax. Se estimó el índice de Ki67 (medio y máximo) en muestras del tejido tumoral, y se correlacionó con los parámetros de la PET. Resultados. La edad media fue 57,0 años (desviación estándar 13,6 años). Se observó una moderada correlación entre el Ki67 medio y el SUVmax (r=0.392), SUVmean 30% (r=0.437) y SUVmean 40% (r=0.443), así como entre el Ki67 máximo y el SUVmax (r=0.360), SUVmean 30% (r=0.362) y SUVmean 40% (r=0.319). La correlación fue más débil, e inversamente negativa, entre el Ki67 medio y máximo y los parámetros volumétricos de la PET. No hubo diferencias estadísticamente significativas entre las correlaciones. Conclusiones. SUVmax y SUVmean se correlacionaron moderadamente con el Ki67 mientras que los parámetros volumétricos mostraron una correlación débil. SUVmax y SUVmean podrían utilizarse para predecir la agresividad tumoral en el CEO pretratamiento (AU)

Objective. Standardised uptake value (SUV) and volumetric parameters such as metabolic tumour volume (MTV) and total lesion glycolysis (TLG) from 18F-FDG PET/CT are useful criteria for disease prognosis in pre-operative and post-treatment epithelial ovarian cancer (EOC). Ki67 is another prognostic biomarker in EOC, associated with tumour aggressiveness. The aim of this study is to evaluate the association between 18F-FDG PET/CT measurements and Ki67 in pre-treatment EOC to determine if PET/CT parameters could non-invasively predict tumour aggressiveness. Material and methods. A pre-treatment PET/CT was performed on 18 patients with suspected or newly diagnosed EOC. Maximum SUV (SUVmax), mean SUV (SUVmean), whole-body MTV (wbMTV), and whole-body TLG (wbTLG) with a threshold of 30% and 40% of the SUVmax were obtained. Furthermore, Ki67 index (mean and hotspot) was estimated in tumour tissue specimens. Immunohistochemical findings were correlated with PET parameters. Results. The mean age was 57.0 years old (standard deviation 13.6 years). A moderate correlation was observed between mean Ki67 index and SUVmax (r=0.392), SUVmean 30% (r=0.437), and SUVmean 40% (r=0.443), and also between hotspot Ki67 index and SUVmax (r=0.360), SUVmean 30% (r=0.362) and SUVmean 40% (r=0.319). There was a weaker correlation, which was inversely negative, between mean and hotspot Ki67 and volumetric PET parameters. However, no statistical significant differences were found for any correlations. Conclusions. SUVmax and SUVmean were moderately correlated with Ki67 index, whereas volumetric PET parameters overall, showed a weaker correlation. Thus, SUVmax and SUVmean could be used to assess tumour aggressiveness in pre-treatment EOC (AU)

Is OSNA better than imprint cytology for intraoperative diagnosis of cancer involvement of axillary sentinel node in breast cancer?

OBJECTIVE: The study aim was to establish Sensitivity, Specificity, Positive Predictive Value, Negative Predictive Value (NPV), and Accuracy Values of both imprint cytology (IC) and the OSNA assay for intraoperative assessment of axillary sentinel node (SN) cancer involvement in breast cancer. Specifically, we wished to find out if true positive and false negative results of IC were associated to axillary lymphadenectomy (ALND). Also, we addressed a comparative cost analysis between techniques. METHODS: 244 patients treated for breast cancer in the Breast Unit of Hospital Germans Trias i Pujol from 2011 to 2015 were prospectively included. A transversal, consecutive design was applied to assess IC compared to the reference test (OSNA). Inclusion criteria were: T1 and T2 tumors with negative nodes, both clinically and on ultrasound. RESULTS: Sensitivity of IC for macrometastases was 70%. The NPV of IC for macrometastases was 95,75%. Accuracy of IC was 96,12%. In the comparative cost analysis, the release time of results for OSNA doubled that of IC and was associated with an increased cost of € 370. CONCLUSIONS: IC has been stated as a good technique for intraoperative cancer involvement SN with high sensitivity and NPV compared to the OSNA assay. It allows keeping the whole node tissue and thus the possibility of improved histopathological evaluation, which can be useful for adjuvant, and offers the advantage of being less time consuming. Cost analysis shows a higher cost for OSNA, which may exceed the benefit of sorting out false negatives from IC.

De la imagen intervencionista a la guía intraoperatoria: nuevas perspectivas combinando herramientas avanzadas y navegación con la cirugía radioguiada / From interventionist imaging to intraoperative guidance: new perspectives by combining advanced tools and navigation with radio-guided surgery

La integración de tecnologías de imagen médica en los enfoques diagnósticos y terapéuticos puede proporcionar una perspectiva preoperatoria tanto en los aspectos anatómicos (tomografía computarizada, resonancia magnética o ecografía) como funcional (tomografía computarizada de emisión de fotón único, tomografía por emisión de positrones, linfogammagrafía o imagen óptica). Además, algunas modalidades de imagen se utilizan también en un entorno intervencionista (tomografía computarizada, ecografía, imágenes gammagráficas o imágenes ópticas), donde proporcionan al cirujano información en tiempo real durante el procedimiento. En la actualidad son factibles diversas herramientas y enfoques metodológicos para la navegación guiada por imágenes en la cirugía del cáncer. Con el desarrollo de nuevos trazadores y dispositivos portátiles de imagen, estos avances reforzarán el papel de la imagen molecular intervencionista (AU)

The integration of medical imaging technologies into diagnostic and therapeutic approaches can provide a preoperative insight into both anatomical (e.g. using computed tomography, magnetic resonance imaging, or ultrasound), as well as functional aspects (e.g. using single photon emission computed tomography, positron emission tomography, lymphoscintigraphy, or optical imaging). Moreover, some imaging modalities are also used in an interventional setting (e.g. computed tomography, ultrasound, gamma or optical imaging) where they provide the surgeon with real-time information during the procedure. Various tools and approaches for image-guided navigation in cancer surgery are becoming feasible today. With the development of new tracers and portable imaging devices, these advances will reinforce the role of interventional molecular imaging (AU)

Correlation of 18F-FDG uptake on PET/CT with Ki67 immunohistochemistry in pre-treatment epithelial ovarian cancer. / Correlación de la captación de 18F-FDG de la PET/TC con el Ki67 de la inmunohistoquímica en el cáncer epitelial de ovario pretratamiento.

OBJECTIVE: Standardised uptake value (SUV) and volumetric parameters such as metabolic tumour volume (MTV) and total lesion glycolysis (TLG) from 18F-FDG PET/CT are useful criteria for disease prognosis in pre-operative and post-treatment epithelial ovarian cancer (EOC). Ki67 is another prognostic biomarker in EOC, associated with tumour aggressiveness. The aim of this study is to evaluate the association between 18F-FDG PET/CT measurements and Ki67 in pre-treatment EOC to determine if PET/CT parameters could non-invasively predict tumour aggressiveness. MATERIAL AND METHODS: A pre-treatment PET/CT was performed on 18 patients with suspected or newly diagnosed EOC. Maximum SUV (SUVmax), mean SUV (SUVmean), whole-body MTV (wbMTV), and whole-body TLG (wbTLG) with a threshold of 30% and 40% of the SUVmax were obtained. Furthermore, Ki67 index (mean and hotspot) was estimated in tumour tissue specimens. Immunohistochemical findings were correlated with PET parameters. RESULTS: The mean age was 57.0 years old (standard deviation 13.6 years). A moderate correlation was observed between mean Ki67 index and SUVmax (r=0.392), SUVmean 30% (r=0.437), and SUVmean 40% (r=0.443), and also between hotspot Ki67 index and SUVmax (r=0.360), SUVmean 30% (r=0.362) and SUVmean 40% (r=0.319). There was a weaker correlation, which was inversely negative, between mean and hotspot Ki67 and volumetric PET parameters. However, no statistical significant differences were found for any correlations. CONCLUSIONS: SUVmax and SUVmean were moderately correlated with Ki67 index, whereas volumetric PET parameters overall, showed a weaker correlation. Thus, SUVmax and SUVmean could be used to assess tumour aggressiveness in pre-treatment EOC.

From interventionist imaging to intraoperative guidance: New perspectives by combining advanced tools and navigation with radio-guided surgery. / De la imagen intervencionista a la guía intraoperatoria: nuevas perspectivas combinando herramientas avanzadas y navegación con la cirugía radioguiada.

The integration of medical imaging technologies into diagnostic and therapeutic approaches can provide a preoperative insight into both anatomical (e.g. using computed tomography, magnetic resonance imaging, or ultrasound), as well as functional aspects (e.g. using single photon emission computed tomography, positron emission tomography, lymphoscintigraphy, or optical imaging). Moreover, some imaging modalities are also used in an interventional setting (e.g. computed tomography, ultrasound, gamma or optical imaging) where they provide the surgeon with real-time information during the procedure. Various tools and approaches for image-guided navigation in cancer surgery are becoming feasible today. With the development of new tracers and portable imaging devices, these advances will reinforce the role of interventional molecular imaging.

Use of SPECT/CT for improved sentinel lymph node localization in endometrial cancer.

OBJECTIVE: To assess the usefulness of adding SPECT/CT to planar images for pre-surgical sentinel lymph node (SLN) identification in endometrial cancer (EC), a technique that could have an important clinical impact on the staging, treatment, and prognosis of EC patients. METHODS: We compared the planar and SPECT/CT lymphoscintigraphic images of 44 patients with high-risk EC who underwent sentinel lymph node procedure (SLN) using an injection technique recently developed at our center known as TUMIR (Transvaginal Ultrasound Myometrial Injection of Radiotracer). 148 MBq (4 mCi) of 99mTc-nanocolloid were injected, guided by transvaginal ultrasound imaging. Planar and SPECT/CT images were performed in all 44 patients. RESULTS: SLNs were seen on planar images in 32 cases (73%) and in 34 cases (77%) using SPECT/CT. A total of 88 SLNs were depicted by planar lymphoscintigraphy while SPECT/CT visualized a total of 110 SLNs. SPECT/CT changed the assessment of the SLNs visualized in planar lymphoscintigraphy in 26 cases, either by modifying the number and/or the location of the SLNs detected. External iliac chain was the most frequent location of SLN detection (71%) in the 34 cases. Fifteen of these patients (44%) showed para-aortic SLNs. One case had exclusive para-aortic drainage (3%) that was only visualized by SPECT/CT. In another case, SPECT/CT was able to localize the only pelvic metastatic lymph node not visualized by planar images. CONCLUSIONS: SPECT/CT combined with planar imaging improves preoperative SLN detection and provides valuable anatomic information that enhances the presurgical stage of the SLN technique in endometrial cancer.

[Sentinel node in gynaecological cancers. Our experience]. / Ganglio centinela en cánceres ginecológicos. Nuestra experiencia.

UNLABELLED: Although sentinel lymph node (SLN) identification is widespread used in melanoma and breast cancer some concerns exist in other malignancies, such gynaecologic cancers, and this staging method has not been adopted in many centers due to lack or large validation studies. AIM: To evaluate the applicability and results of SLN technique in gynaecological malignancies referred to our institution. METHOD: We studied 155 patients with different malignancies (70 vulvar, 50 cervical and 35 endometrial cancers). The day before surgery a lymphoscintigraphy was performed by injecting 111 MBq of (99m)Tc-nanocolloid in several ways depending on the type of cancer studied. Intraoperative detection of the SLN was always performed by using a hand-held gammaprobe and, in 100 cases with the aid of blue dye injection (70 vulvar and 30 in cervical cancer) few minutes before surgical intervention. Pathological study of SLN was performed in all cases. Lymphadenectomy was done in all cervix and endometrial cancer patients and in the first 35 vulvar cancer patients. RESULTS: Pre-surgical lymphoscintigraphy demonstrated one, at least, SLN in 97% of vulvar cancer patients, 92% in the cervical malignancy and 64% in the endometrial cancer patients. During surgery, SLN was harvested in 97%, 90% and 62% of patients, respectively. The pathological study showed metastases in 24.2%, 8.8 and 4.5% of patients with vulvar, cervical and endometrial cancer, respectively. The false negative percentage was 5.5% in vulvar cancer patients, with 2 cases in the endometrial cancer and without any case in the cervical cancer patients. CONCLUSION: Lymphoscintigraphy is a relatively simple and useful technique to identify the SLN in this kind of tumours. However, in endometrial cancer more effort has to be made to reach a suitable result. Sentinel lymph node biopsy seems to be a reliable technique in vulvar and cervical malignancies.

Ganglio centinela en cánceres ginecológicos. Nuestra experiencia / Sentinel node in gynaecological cancers. Our experience

Aunque la identificación del ganglio centinela (GC) presenta en la actualidad una amplia aplicación en el melanoma y el cáncer de mama, no se utiliza rutinariamente en otras neoplasias, como pueden ser las ginecológicas.ObjetivoEvaluar la aplicabilidad y los resultados de la técnica de localización del GC en pacientes con cánceres ginecológicos.MétodoSe estudiaron 155 pacientes con diversas neoplasias ginecológicas (70 vulvares, 50 de cuello uterino y 35 endometriales). Se realizó una linfogammagrafía el día previo a la intervención quirúrgica mediante la inyección de 111 MBq de 99mTc-nanocoloide por diversas vías según el tipo de lesión. La localización intraoperatoria se realizó mediante una sonda detectora y en 100 casos (70 vulvares y 30 de cuello uterino) se administró también un colorante vital pocos minutos antes del inicio de la intervención. Se realizó estudio anatomopatológico del GC. Se practicó linfadenectomía reglada en todas las pacientes con cáncer de cérvix y de endometrio y en las primeras 35 pacientes con cáncer de vulva.ResultadosLa linfogammagrafía prequirúrgica visualizó como mínimo un GC en el 97% de los cánceres de vulva, en el 92% de cérvix y el 64% de tumores de endometrio. Intraoperatoriamente la localización del GC mostró unos porcentajes del 97, del 90 y del 62%, respectivamente. El estudio anatomopatológico demostró metástasis en el 24,2% de las pacientes con lesiones vulvares, el 8,8% en las de cérvix y el 4,5% en las de endometrio. El porcentaje de falsos negativos fue del 5,5% en los cánceres de vulva (1 caso), presentándose 2 casos en el endometrio y ninguno en las pacientes con cáncer de cérvix.ConclusiónLa linfogammagrafía es una técnica útil y sencilla para identificar los GC en este tipo de tumores. La biopsia del GC ofrece resultados fiables en los cánceres de vulva y cuello uterino. Sin embargo, en el cáncer de endometrio nuestros resultados no son óptimos y debe valorarse la adecuación de la técnica(AU)

Although sentinel lymph node (SLN) identification is widespread used in melanoma and breast cancer some concerns exist in other malignancies, such gynaecologic cancers, and this staging method has not been adopted in many centers due to lack or large validation studies.AimTo evaluate the applicability and results of SLN technique in gynaecological malignancies referred to our institution.MethodWe studied 155 patients with different malignancies (70 vulvar, 50 cervical and 35 endometrial cancers). The day before surgery a lymphoscintigraphy was performed by injecting 111MBq of 99mTc-nanocolloid in several ways depending on the type of cancer studied. Intraoperative detection of the SLN was always performed by using a hand-held gammaprobe and, in 100 cases with the aid of blue dye injection (70 vulvar and 30 in cervical cancer) few minutes before surgical intervention. Pathological study of SLN was performed in all cases. Lymphadenectomy was done in all cervix and endometrial cancer patients and in the first 35 vulvar cancer patients.ResultsPre-surgical lymphoscintigraphy demonstrated one, at least, SLN in 97% of vulvar cancer patients, 92% in the cervical malignancy and 64% in the endometrial cancer patiuents. During surgery, SLN was harvested in 97%, 90% and 62% of patients, respectively. The pathological study showed metastases in 24.2%, 8.8 and 4.5% of patients with vulvar, cervical and endometrial cancer, respectively. The false negative percentage was 5.5% in vulvar cancer patients, with 2 cases in the endometrial cancer and without any case in the cervical cancer patients.ConclusionLymphoscintigraphy is a relatively simple and useful technique to identify the SLN in this kind of tumours. However, in endometrial cancer more effort has to be made to reach a suitable result. Sentinel lymphm node biopsy seems to be a reliable technique in vulvar and cervical malignancies(AU)

Recurrence and survival in surgically treated endometrioid endometrial cancer

INTRODUCTION: The objective of this study was to evaluate different surgical treatments and radiotherapy on patterns of recurrence and overall survival in patients with endometrioid-type endometrial cancer. MATERIALS AND METHODS: The retrospective records of 162 patients with endometrioid endometrial cancer were collected. Patients were surgically treated from 1997 to 2002. Recurrence and survival were analyzed according to patient age, surgical procedure, lymphadenectomy, externalbeam irradiation, brachytherapy, surgical stage, myometrial invasion, and tumor grade. Standard statistical calculations were used. RESULTS: Median age was 64 years. Median follow-up was 44 months. Overall, ten patients (5.6%) experienced recurrence and 14 (8.6%) died. With univariate analysis, statistical significance for survival was found for age older than 70 years, tumor grade, myometrial invasion, and stage. Multivariate analysis, however, found only age, stage, and grade to be significant. With univariate analysis, statistical significance for recurrence was found for tumor grade, stage, and external-beam radiotherapy as risk factors. Multivariate analysis found only radiotherapy and brachytherapy to be significant, but in an inverted sense, with brachytherapy having a protective effect. CONCLUSION: Our results suggest that brachytherapy protects against recurrence and that neither a surgical approach nor a lymphadenectomy appear to affect recurrence or survival in patients with surgically treated endometrioid endometrial cancer (AU)

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Laparoscopic ovarian transposition in patients with early cervical cancer.

The aim of this study was to evaluate the feasibility, efficacy, and morbidity of laparoscopic ovarian transposition on the preservation of hormonal function in patients younger than 45 years operated for early cervical cancer. According to risk factors on pathologic evaluation of the specimen, some of them will receive postoperative pelvic radiotherapy. This subset of patients could benefit from taking the ovaries away from the irradiation field in an effort to preserve their functionality. This prospective study included 28 FIGO stage IB1 cervical cancer patients, 45 years old or younger, maintaining menstrual cycles, who were considered suitable for conservation of the ovaries. The ovarian transposition was performed by laparoscopy as a part of the same celio-Schauta operation. Twelve patients underwent adjuvant pelvic radiotherapy. No intraoperative or postoperative morbidity related to the ovarian transposition was observed, and the procedure only entailed a minimum delay of the operative time. There were no cases of ovarian metastasis. At a mean follow-up of 44 months, 63.6% of patients receiving radiotherapy and 93% of those who nonirradiated maintained normal ovarian function. Two patients developed benign ovarian cysts, requiring oophorectomy, but no other long-term adverse effects of the transposition were identified. To the best of our knowledge, this is the largest series of the laparoscopic procedure reported to date in this setting. According to our results, laparoscopic ovarian transposition is a safe and effective procedure for the preservation of ovarian function in young patients with early cervical cancer undergoing adjuvant radiotherapy after surgery.

Localización radioguiada de lesiones ocultas en cáncer de mama con gammacámara portátil. Experiencia inicial / No disponible

Objetivo: La localización radioguiada de lesiones ocultas(ROLL) de mama se ha realizado tradicionalmente mediante lautilización de sondas detectoras. No obstante, uno de los inconvenientesde esta técnica es que el radiotrazador inyectadopuede esparcirse por la glándula mamaria dificultando la resecciónde la lesión. La utilización de un dispositivo que permiteobtener una imagen en tiempo real podría ayudar a confirmarla correcta resección de la lesión.Pacientes y método: Estudio prospectivo de 70 pacientesdiagnosticadas de cáncer de mama con lesiones no palpables.Se realizó una linfogammagrafía el día previo a la intervenciónquirúrgica después de la administración de un nanocoloidemarcado con 99mTc. Durante la cirugía se utilizó una sondadetectora para guiar al cirujano (53 pacientes) y una gammacámaraportátil para valorar los márgenes de la lesión y el lechoquirúrgico. En un subgrupo de pacientes (17) se utilizóúnicamente la gammacámara para lograr estos objetivos.Resultados: En la fase 1 (42 pacientes) se visualizó con lagammacámara una lesión centrada en 23/42 pacientes, nocentrada en 15/42 y en contacto con el margen en 4 casos.El estudio patológico determinó márgenes libres en 15/23 casoscon lesión centrada (65%), márgenes afectos en 10/19casos con lesión no centrada. La congruencia global fue del60%. En la segunda fase (28 pacientes) la congruencia globalfue del 68%.Conclusión: La utilización de gammacámaras portátiles enquirófano se encuentra en su fase de desarrollo y mejoría técnicasiendo posible su aplicación clínica con resultados similaresa los obtenidos con las sondas detectoras(AU)

Objective: Radioguided occult localization lesion (ROLL) inbreast cancer has been classically performed by using handheldgamma probes. However, one of the important drawbacksof such a technique is the radiotracer spillage within themammary gland that difficult the precise lesion resection. Theuse of a device that can obtain a real-time image could help toconfirm if the lesion is correctly removed and to assess the surgicalbed remaining tissue.Patients and method: Prospective study including 70 patientswith non-palpable breast cancer lesions. A lymphoscintigraphywas performed, the day before surgery, after injectionof nanocolloid labelled with 99mTc. A hand-held gamma probewas used to guide the surgeon during surgical procedure(53 patients) and, afterwards a portable gammacamera wasused to assess the surgical lesion margins. This device was solelyused in a subgroup of 17 patients to reach all targets.Results: In the first group (42 patients), a centered lesion insurgical specimen was observed by means of the portablegammacamera (23/42 patients), no centered in 15/42 and inclose contact with a margin in the remaining 4 patients. Pathologicalstudy demonstrated free margins in 15 out of 23 caseswith centered lesion (65%), involved margins en 10/19patients with non-centered lesions. Overall congruence reached60%. In the second group (28 patients), overall congruencearose to 68%.Conclusion: The intraoperative use of portable gammacamerasis in its early phase, but the clinical application of thesedevices with similar results of those achieved with the classicalhand-held gamma probes is possible(AU)

Preoperative and intraoperative assessment of myometrial invasion and histologic grade in endometrial cancer: role of magnetic resonance imaging and frozen section.

The objective of this study was to determine the value of myometrial invasion by magnetic resonance imaging (MRI), histologic typing and grading by endometrial biopsy, and the intraoperative evaluation of both parameters by frozen section in the evaluation of endometrial cancer. The preoperative and intraoperative records of 180 patients with endometrial cancer were used to compare the preoperative endometrial biopsy, the myometrial invasion by MRI, and the intraoperative frozen sections, with the final histopathologic findings. The preoperative endometrial biopsy gave us the tumor histologic type and grade. MRI gave us the depth of myometrial invasion. The evaluation of intraoperative frozen sections gave us the tumor histologic type, the tumor grade, and also the myometrial invasion. Patients were classified as low risk (grade 1 and 2, and myometrial invasion <50%) and high risk (grade 3 or myometrial invasion >50%). Standard statistical calculations were used. Evaluation of the tumor grade by preoperative biopsy has a sensitivity and a specificity of 75% and 95%, respectively. Evaluation of the tumor grade by intraoperative biopsy has a sensitivity and a specificity of 40% and 98%, respectively. Evaluation of the depth of myometrial invasion with MRI has a sensitivity and a specificity of 79% and 82%, respectively. Evaluation of the depth of myometrial invasion with intraoperative frozen sections has a sensitivity and a specificity of 74% and 95%, respectively. Evaluation of all four of the parameters together has a sensitivity and a specificity of 80% and 82%, respectively with a kappa of 0.621. In our opinion, the combination of preoperative biopsy and intraoperative frozen section is the best way to decide whether a lymphadenectomy is necessary with a low rate of understaging patients. MRI would have a fringe benefit in these patients.