Clinicopathological analysis of benign mammary ductal cystic papillomatosis with loss of myoepithelial cells / 中华病理学杂志

Objective: To investigate the histopathological and immunohistochemical characteristics of benign apocrine cystic papillary hyperplasia of the breast with loss of myoepithelial cell layer. Methods: The clinical data, histopathological features and immunohistochemical profile of patients with benign apocrine cystic papillary hyperplasia of breast with loss of myoepithelial cell layer from January 2016 to December 2021 were examined, in which six patients were identified. Results: All six patients were female, aged 36-61 years (median 46 years), who presented with a breast mass; three cases were from the left breast and three cases were from the right breast. Microscopic examination of all cases showed breast hyperplasia with apocrine cysts, accompanied by different degrees of micropapillary and papillary hyperplasia of apocrine cells. One case was associated with lobular carcinoma in situ, and one case was associated with apocrine ductal carcinoma in situ with intraductal dissemination in adenosis. Immunohistochemical staining of CK5/6, p63, SMA, SMMHC, Calponin and CD10 showed complete absence of myoepithelial cell layer surrounding ducts in apocrine cystic papillary hyperplasia. Conclusions: The myoepithelial cells of apocrine cystic papillary hyperplasia of the breast may undergo abnormal changes and may even be completely lost. The diagnosis should be comprehensively considered along with cytomorphological and histological features to avoid overdiagnosis.

Carcinoma Mamaria Lobulillar PLeomórfico vs Carcinoma Lobulillar Clásico. Estudio comparativo descriptivo de características clínicopatológicas y evolución. / Pleomorphic Lobulilar Breast Carcinoma vs Classic Lobulilar Carcinoma. Descriptive comparative study of clinical-pathological characteristics and evolution.

Introducción La variante pleomórfica del carcinoma lobulillar infiltrante es considerada más agresiva y con peor pronóstico que la variante clásica, según se ve reflejado en numerosos trabajos que muestran una menor sobrevida global en pacientes con carcinoma lobulillar infiltrante pleomórfico (CLP) en comparación con el carcinoma lobulillar infiltrante clásico (CLC). El objetivo del presente trabajo fue comparar las características clínicas, anatomo-patológicas, la sobrevida global y libre de enfermedad entre el carcinoma lobulillar infiltrante pleomórfico y el carcinoma lobulillar infiltrante clásico. Material y método Estudio comparativo, descriptivo, retrospectivo, llevado a cabo en el Instituto de Ginecología de Rosario, donde de un total de 562 pacientes con diagnóstico de cáncer de mama, se hallaron 112 pacientes con diagnóstico de cáncer lobulillar infiltrante, de las cuales un grupo de 94 pacientes tuvo diagnóstico de carcinoma lobulillar infiltrante clásico (19,9%) y 18 pacientes fueron diagnosticadas con carcinoma lobulillar infiltrante pleomórfico (3,2%), de acuerdo al informe anatomopatológico. Se compararon las características clínico-patológicas de presentación, el tratamiento quirúrgico y los resultados oncológicos a largo plazo. Resultados No hubo diferencias significativas en la edad de presentación entre el CLC y el CLP (Mediana: 55 años vs 55 años), tamaño tumoral (Promedio: 2,4 cm vs 3,1 cm), multicentricidad (17% vs 11.1%), receptores hormonales positivos (93,3% vs 97,1%), y tratamiento quirúrgico conservador (70.6% vs 79.4%). Se encontró diferencia estadísticamente significativa en cuanto a estadificación ganglionar (N3: 2.8% vs 44.5% p=0,004), Her2neu positivo (p=0,012) e indicación de quimioterapia en el grupo de carcinoma lobulillar infiltrante pleomórfico (43,2% vs 75% p=0,028). Con respecto al seguimiento, en el grupo CLP se observó menor sobrevida global (p=0,006) y libre de enfermedad (p=0,004) durante 151 meses de seguimiento promedio. Hallamos concordancia con las publicaciones que reportan al CLP como una variante con peor evolución en comparación al CLC. Conclusión Hallamos que el CLP tuvo mayor compromiso ganglionar, indicación de quimioterapia adyuvante, mayor porcentaje de Her2neu positivo y peor evolución, lo que se vio reflejado en una menor sobrevida global y libre de enfermedad.

Introduction According to what is reflected in numerous studies showing a lower global survival in patients with pleomorphic infiltrating lobular carcinoma (PLC) rather than in those with classical infiltrating lobular carcinoma (CLC), the pleomorphic variant of infiltrating lobular carcinoma is considered an aggressive tumor which has a worst prognosis than the classical type. The aim of the present study was to compare the clinical, pathological characteristics, the global and disease-free survival between the pleomorphic infiltrating lobular carcinoma and the classical infiltrating lobular carcinoma. Material and method Comparative, descriptive, retrospective study, conducted at the Instituto de Ginecología de Rosario, where a total of 562 patients diagnosed with breast cancer. 112 patients of them were found diagnosed with infiltrating lobular carcinoma, of which a group of 94 patients had a diagnosis of classic lobular carcinoma (19.9%) and 18 (3.2%) patients were diagnosed with pleomorphic infiltrating lobular carcinoma, according to the pathological report. The clinical-pathological characteristics of presentation, surgical treatment and long-term outcomes were compared. Results There were no significant differences in the age of presentation between the CLC and the CLP (Median: 55 years vs 55 years), tumor size (Mean: 2.4 cm vs. 3.1 cm), multicentricity (17% vs. 11.1%), positive hormonal receptors (93.3% vs. 97.1%), and surgical treatment (70.6% vs. 79.4% in conservative surgery). A statistically significant difference was found in terms of lymph node status (N3: 2.8% vs. 44.5% p=0.004), Her2neu positive (p=0.012) indication of chemotherapy in the group of pleomorphic infiltrating lobular carcinoma (43.2% vs. 75% p=0.028). Regarding the follow-up, in the CLP group, lower overall survival (p= 0.006) and disease-free (p=0.004) noticed during 151 months of average follow-up. We found ourselves in agreement with the publications that report to the CLP as a variant with worse evolution compared to the CLC. Conclusion We found that CLP had a greater lymph node involvement, an indication for adjuvant chemotherapy, a higher percentage of positive Her2 neu and worse evolution, which was reflected in a lower overall and disease-free survival.

Análisis comparativo del Carcinoma Lobulillar Invasor versus Carcinoma Ductal Invasor: ¿entidades clínica o biológicamente diferentes? / Comparative analysis of Invasive Lobular Carcinoma versus Invasive Ductal Carcinoma: clinically or biologically different entities?

Introducción El Carcinoma Lobulillar Invasor (cli) es el tipo histológico especial más común del cáncer de mama. Presenta características histopatológicas asociadas a buen pronóstico, pero algunos estudios sugieren que los resultados a largo plazo pueden ser peores que los del Carcinoma Ductal Invasor (cdi). Objetivo Los objetivos principales del estudio fueron evaluar las características clínico-patológicas del cli y establecer el valor pronóstico. Material y método Se seleccionaron 244 pacientes con cli y se utilizó como grupo control a 524 pacientes con cdi, comparándolas con relación 2 a 1. Resultados No se observaron diferencias en edad, estado menopáusico, motivo de consulta e invasión linfovascular. Fueron más frecuentemente multifocales, multicéntricos, de mayor tamaño, bajo grado histológico y her2 negativo. La cirugía conservadora se realizó con menos frecuencia. No hubo diferencias significativas en recaída a distancia, cáncer de mama contralateral, sobrevida libre de enfermedad y global. Conclusiones Las pacientes con cli no tuvieron mejores resultados a pesar de un fenotipo biológico más favorable. La histología ductal o lobulillar no debería ser un factor en el manejo de la patología, y no debería considerarse un factor pronóstico o predictivo determinante al momento del diagnóstico

Introduction Invasive Lobular Carcinoma (ilc) is the second most common histologic type of breast cancer. Typically, displays features associated with a good prognosis, but some studies suggest that outcomes of ilc may be worse than for Invasive Ductal Carcinoma (idc). Objective The main purpose of this study was to evaluate the clinical-pathological characteristics of Lobular Breast Carcinoma and establish his prognostic value. Materials and method We selected a group of 244 patients with ilc and compared with 524 patients whit idc in relation 2:1. Results There were no differences in age, menopausal status, symptoms at time of diagnosis, and lymph vascular invasion. ilc were larger, low histological grade and her2 negative, more often mulfifocal and multicentric. Breast-preservation therapy was less frequent for Invasive Lobular Carcinoma. Distant relapse, contralateral cancer, overall survival, disease-free survival, did not differ between idc and ilc. Conclusions Women with ilc do not have better clinical outcomes than patients with idc, despite the fact that the biologic phenotype of ilc is quite favorable. The ductal or lobular histology should not be a factor in the therapeutic decision-making process, and should not be considered an important prognostic or predictive factor at diagnosis

CD9 Expression in Tumor Cells Is Associated with Poor Prognosis in Patients with Invasive Lobular Carcinoma / 한국유방암학회지

PURPOSE: We investigated the prognostic significance of CD9 expression in tumor cells of patients with invasive lobular carcinoma (ILC). METHODS: CD9 expression was evaluated by immunohistochemistry in 113 ILC tissue samples. Correlation of CD9 expression with the patients' clinicopathological parameters and overall survival was assessed. RESULTS: CD9 expression was detected in 48 (42.5%) ILC patients. However, no significant relation could be determined between CD9 expression and the clinicopathological parameters of the patient including tumor size, lymph node metastasis, lymphovascular invasion, histologic grade, expression of hormone receptors, human epidermal growth factor receptor 2 status, and Ki-67 labeling index. Patients with CD9 expression had worse overall survival (p = 0.051) and disease-free survival (DFS, p = 0.014) compared to patients without CD9 expression. Multivariate analysis revealed that CD9 expression was an independent prognostic factor for DFS (p = 0.049). CONCLUSION: CD9 expression in tumor cells could be a significant prognostic marker in patients with ILC.

Manejo Nutricional em Paciente com Metástase Gástrica de Câncer de Mama: um Relato de Caso / Nutritional Management in a Patient with Breast Cancer Metastasis to the Stomach: a Case Report / Manejo Nutricional en Paciente con Metástasis Gástrica del Cáncer de Mama: un Informe de Caso

Introdução: O surgimento de metástase gástrica oriunda de neoplasia da mama é raro. Entretanto, o suporte nutricional nesses casos é imprescindível, já que tumores gástricos estão relacionados a complicações nutricionais, favorecendo desfechos clínicos negativos. Relato do caso: Paciente com diagnóstico de adenocarcinoma de mama, com progressão para ossos, ovário e estômago, internada em razão das complicações clínicas. Apresentou perda de peso grave durante a internação, além de diagnóstico de risco de desnutrição pela avaliação subjetiva global produzida pelo paciente. Em virtude do quadro de odinofagia severa, a alimentação via oral tornou-se impossibilitada, sendo optado pelo uso de sonda nasoentérica após discussão com equipe interdisciplinar. Conclusão: A terapia nutricional em pacientes com câncer avançado ainda é um dilema entre os profissionais e sua execução deve ser discutida e decidida por uma equipe interdisciplinar, com participação indispensável do nutricionista, do paciente e de seus familiares. Para isso, os serviços de saúde devem estar preparados para o correto manejo da conduta nutricional, a fim de promover qualidade de vida para esses pacientes.

Introduction: It is uncommon for breast cancer to metastasize to the stomach. However, when it does occur, nutritional support is indispensable, because gastric tumors are associated with nutritional complications, which worsen clinical outcomes. Case report: We report the case of a female patient diagnosed with breast adenocarcinoma that had metastasized to the bones, ovary, and stomach, who was hospitalized because of clinical complications. During hospitalization, she presented severe weight loss and was classified as being at nutritional risk, as determined by the Patient-Generated Subjective Global Assessment. Due to severe odynophagia, oral intake was not possible. Therefore, after consultation with the multidisciplinary team, the decision was made to insert a nasogastric tube. Conclusion: Nutritional therapy in patients with advanced cancer still constitutes a dilemma facing professionals and needs to be discussed by a multidisciplinary team, the participation of the nutritionist, patient, and family being indispensable. Therefore, health care services must be prepared to manage nutritional therapy correctly, in order to promote better quality of life for such patients.

Introducción: El surgimiento de metástasis gástrica proveniente de neoplasia de mama es raro. Sin embargo, el soporte nutricional en estos casos es imprescindible, ya que los tumores gástricos están relacionados a complicaciones nutricionales, favoreciendo los resultados clínicos negativos. Informe de caso: Paciente con diagnóstico de adenocarcinoma de mama, con progresión para huesos, ovario y estómago, internada debido a complicaciones clínicas. Se presentó una pérdida de peso grave durante la internación, además de diagnóstico de riesgo de desnutrición por la evaluación subjetiva global producida por el paciente. Debido a un cuadro de odinofagia severa, la alimentación oral se volvió imposibilitada, siendo optado por el uso de sonda nasoentérica después de la discusión con el equipo interdisciplinario. Conclusión: La terapia nutricional en pacientes con cáncer avanzado sigue siendo un dilema entre los profesionales y su ejecución debe ser discutida y decidida por un equipo interdisciplinario, con participación indispensable del nutricionista, del paciente y de sus familiares. Para ello, los servicios de salud deben estar preparados para el correcto manejo de la co

Lobular Breast Carcinoma Metastasis to the Thyroid Gland: Case Report and Literature Review / 한국유방암학회지

Metastasis from primary cancer to the thyroid is uncommon in breast cancer. Here we present a case of lobular breast carcinoma that metastasized to the thyroid. A 54-year-old woman without symptoms was admitted to our institution for staging of the lymph node above the left clavicle. An ¹⁸F-fluoro-deoxy-D-glucose positron emission tomography scan was performed for staging, and low uptakes were observed in the left supraclavicular and cervical lymph nodes. High uptake was seen in the posterior and lower left lobe of the thyroid. Histologic findings indicated lobular breast carcinoma (positive GATA3, loss of E-cadherin expression) metastatic to the thyroid with a luminal profile. Immunohistochemical analysis was negative for primary thyroid or parathyroid carcinoma. To our knowledge, this is the first report of a patient presenting a metastatic invasive lobular carcinoma in the thyroid and lymph nodes without a prior diagnosis of breast cancer.

Collagenous Spherulosis Associated with Lobular Carcinoma In Situ of the Breast: Two Case Reports

No abstract available.

Prognostic Validation of the American Joint Committee on Cancer 8th Staging System in 24,014 Korean Patients with Breast Cancer / 한국유방암학회지

PURPOSE: The American Joint Committee on Cancer (AJCC) recently released the breast cancer staging system, 8th edition, which included additional four biologic factors. However, there has been no external validation of the prognostic value of the new stages with different population-based databases. METHODS: To validate the prognostic value of the new staging system in the Asian population, with a focus on Korean patients with breast cancer, we performed a retrospective study with data from the Korean Breast Cancer Society that included 24,014 patients with invasive ductal or lobular carcinoma who underwent surgery between January 2009 and January 2012 in Korea. The proportional differences were evaluated between the anatomic staging system (AJCC 7th edition) and the prognostic staging system (AJCC 8th edition, December 2017 published version). Comparisons of overall survival (OS) and disease-free survival (DFS) with Kaplan-Meier graphs and hazard ratios were also performed. RESULTS: Our analysis included 24,014 patients (median age, 50 years; range, 20–91 years). Stage I, II, and III disease accounted for 47.6%, 43.5%, and 8.9%, respectively, of anatomic stages and 61.8%, 27.6%, and 10.8%, respectively, of clinical prognostic stages. A total of 6,272 cases (26.1%) were upstaged, 4,656 (19.4%) were downstaged, and 13,086 (54.5%) remained unchanged. OS and DFS decreased in the order from prognostic stages IA to IIIC but did not change among the anatomic stage groups. CONCLUSION: Our data suggests that the prognostic staging system provides superior prognostic value to the anatomic staging system in Korean patients with breast cancer.

Invasive Lobular Carcinoma: Detection and Multiplicity with Multimodalities / 이화의대지

OBJECTIVES: We aimed to compare the diagnostic performances of digital mammography (DM), digital breast tomosynthesis (DBT), ultrasound (US), magnetic resonance imaging (MRI), breast specific gamma imaging (BSGI) and/or positron emission tomography/computed tomography (PET/CT) for the detection of invasive lobular carcinoma (ILC). METHODS: Index ILCs and multifocal/multicentric (multiple) ILCs were analyzed using various imaging modalities. The final surgical pathology was regarded as the reference standard. The detection rate for index cancers and the diagnostic performance for multiple ILCs per breast were evaluated. RESULTS: Seventy-eight ILCs in 76 women were enrolled. Twenty-six breasts had multiple ILCs. DM (n=72), DBT (n=15), US (n=77), MRI (n=76), BSGI (n=50), and /or PET/CT (n=74) were performed. For index cancer, the detection rate was 100% for DBT, US, and MRI. For multiple ILCs, the sensitivity was 100% for DBT and MRI (P<0.001). The diagnostic accuracy for multiple ILCs were 73.3% for DBT and 73.0% for PET/CT (P=0.460). CONCLUSION: DBT was the most accurate imaging modality for both index and multiple ILCs. PET/CT was also valuable for multiple ILCs, whereas DM and BSGI showed relatively low diagnostic performances. DBT and PET/CT have promising roles in the diagnosis of multiple ILCs.

Relationship between food perceptions and health-related quality of life in a prospective study with breast cancer patients undergoing chemotherapy

OBJECTIVE: To correlate the perceptions related to dietary intake with the domains and subscales of health-related quality of life (HRQL) in women with breast neoplasms receiving chemotherapy. METHODS: In this prospective study, 55 women with breast cancer were followed up during chemotherapy at three different times (T0, T1, T2). Before chemotherapy, perceptions related to food consumption were evaluated. HRQL was analyzed with the EORTC QLQ-C30 and Br23 instruments 21 days after each investigated cycle. The differences (T2-T0) in the subscales and HRQL domains were correlated with the differences (T2-T0) in the appetite scores. Spearman's correlation was used to verify a possible correlation between differences in functional and overall HRQL domains (T2-T0) and differences in appetite scores for certain foods and between the differences in some subscales of EORTC QLQ-C30 and Br23 (T2-T0) and differences in appetite scores for certain food groups (T2-T0). RESULTS: Correlations between pain and appetite for bitter taste and between an increased appetite for juices and pain intensification or fatigue were identified, and pain was correlated with an appetite for starchy foods. An appetite for vegetables, legumes and meat/eggs was correlated with physical function. The only significant correlation with social functions occurred between the appetite for sweet foods and these functions. We found a correlation between overall health, emotional function, social function and physical function and the appetite for juices. CONCLUSION: Chemotherapy alters the individual's relationship with food and, consequently, the individual's HRQL.

Correlation of Prognostic Factors of Invasive Lobular Carcinoma with ADC Value of DWI and SUVMax of FDG-PET / 전남의대학술지

Invasive lobular carcinoma (ILC) is the second most common kind of breast cancer. Diffusion weighted imaging (DWI) and positron emission tomography/computed tomography (PET/CT) are functional modalities for presenting the biological characteristics of breast cancer. The purpose of this article is to study the relationship between DWI or PET/CT and ILC's prognostic factors. The relationship between the apparent diffusion coefficient (ADC) values, standard uptake value (SUV)max and prognostic factors of ILC were statistically evaluated. The ADC values were lower in mass types of ILC. SUVmax was statistically higher in grade 3 and 4 background parenchymal enhancement and positive lymph node metastasis. ADC values of DWI and SUVmax of PET/CT can be helpful in the prediction of the prognosis of ILC.

Synchronously Diagnosed Gastric Metastasis from Invasive Lobular Breast Carcinoma, Mimicking Primary Gastric Carcinoma

Gastric metastasis from invasive lobular breast carcinoma is rare. Mostly gastrointestinal metastasis presents as one among multiple metastases, several years after primary diagnosis of breast carcinoma. Herein, we report a synchronously diagnosed gastric metastasis from invasive lobular carcinoma, mimicking primary gastric linitis plastica with pyloric obstruction. We reviewed clinical and pathological findings of gastric carcinoma metastatic from the breast. In particular, we focused on immunohistochemical studies of selected antibodies, including those for estrogen receptors, gross cystic disease fluid protein-15, and caudal-type homeobox transcription factor 2, for accurate differential diagnosis. Clinical suspicion, repeat endoscopic biopsy, and detailed histological analysis including immunohistochemistry are necessary for diagnosis of gastric carcinoma metastatic from the breast.

Carcinoma lobular infiltrante para el radiólogo general: revisión en imágenes / Lobular Carcinoma of the Breast for the General Radiologist: Imaging Review

El carcinoma lobular infiltrante es la segunda neoplasia maligna más frecuente de la mama. Su presentación suele ser avanzada, ya que el diagnóstico imaginológico no es sencillo. En mamografía puede presentarse como una masa mal definida, distorsión de la arquitectura o asimetrías; sin embargo, es necesaria la valoración mediante ultrasonido y resonancia magnética para poder acercarse al diagnóstico. Las metástasis de este tipo de cáncer tienen una distribución diferente a las de su contraparte ductal, siendo más frecuentes en tracto gastrointestinal, peritoneo y anexos.

Infiltrating lobular carcinoma is the second most common malignancy of the breast. Its presentation is usually advanced given that the imaging diagnosis is not easy. In mammography it may be found as an ill-defined mass, architectural distortion or asymmetry. However, the assessment by ultrasound and magnetic resonance imaging is necessary for the diagnosis. The metastasis of this type of cancer has a different distribution than its ductal counterparts, being more common in gastrointestinal tract, peritoneum and annexes.

Metastatic uterine cancer looking as cervical fibroid in recurrent breast cancer woman: a case report

Metastasis to the female genital tract from extragenital primary cancer is uncommon. In this case, a 46-year-old woman was diagnosed with invasive lobular carcinoma of the left breast in 2011. She had left breast conserving surgery, chemotherapy, radiation, and hormonal therapy (gosereline and tamoxifen). However, she developed menorrhagia after interruption of hormonal therapy and incidentally, the ultrasonogram of her pelvis showed a solid, large mass in the cervix. It looked like leiomyoma. Because of massive vaginal bleeding requiring multiple blood transfusions, she underwent total hysterectomy with bilateral salpingo-oophorectomy. Unexpectedly, however, histopathological examination revealed metastatic carcinoma, consistent with breast origin.The metastatic tumor involved the uterine corpus with spreading to the endocervix, left ovary, and multiple lymphovascular invasion was present. We described the rarity and risk of metastatic uterine cancer in patient with history of malignant tumor treatment.

Clinicopathologic Characteristics of Pregnancy-Associated Breast Cancer: Results of Analysis of a Nationwide Breast Cancer Registry Database / 한국유방암학회지

PURPOSE: This study aimed to evaluate the clinicopathological characteristics of pregnancy-associated breast cancer (PABC) in comparison with non-pregnancy associated breast cancer (non-PABC). METHODS: A total of 344 eligible patients with PABC were identified in the Korean Breast Cancer Society Registry database. PABC was defined as ductal carcinoma in situ, invasive ductal carcinoma, or invasive lobular carcinoma diagnosed during pregnancy or within 1 year after the birth of a child. Patients with non-PABC were selected from the same database using a 1:2 matching method. The matching variables were operation, age, and initial stage. RESULTS: Patients with PABC had significantly lower survival rates than patient with non-PABC (10-year survival rate: PABC, 76.4%; non-PABC, 85.1%; p=0.011). PABC patients had higher histologic grade and were more frequently hormone receptor negative than non-PABC patients. Being overweight (body mass index [BMI], ≥23 kg/m²), early menarche (≤13 years), late age at first childbirth (≥30 years), and a family history of breast cancer were more common in the PABC group than in the non-PABC group. Multivariate analysis showed the following factors to be significantly associated with PABC (vs. non-PABC): early menarche (odds ratio [OR], 2.165; 95% confidence interval [CI], 1.566–2.994; p<0.001), late age at first childbirth (OR, 2.446; 95% CI, 1.722–3.473; p<0.001), and being overweight (OR, 1.389; 95% CI, 1.007–1.917; p=0.045). CONCLUSION: Early menarche, late age at first childbirth, and BMI ≥23 kg/m² were more associated with PABC than non-PABC.

Correlation of Prognostic Factors of Invasive Lobular Carcinoma with ADC Value of DWI and SUVMax of FDG-PET / 전남의대학술지

Invasive lobular carcinoma (ILC) is the second most common kind of breast cancer. Diffusion weighted imaging (DWI) and positron emission tomography/computed tomography (PET/CT) are functional modalities for presenting the biological characteristics of breast cancer. The purpose of this article is to study the relationship between DWI or PET/CT and ILC's prognostic factors. The relationship between the apparent diffusion coefficient (ADC) values, standard uptake value (SUV)max and prognostic factors of ILC were statistically evaluated. The ADC values were lower in mass types of ILC. SUVmax was statistically higher in grade 3 and 4 background parenchymal enhancement and positive lymph node metastasis. ADC values of DWI and SUVmax of PET/CT can be helpful in the prediction of the prognosis of ILC.

The Usefulness of Intraoperative Circumferential Frozen-Section Analysis of Lumpectomy Margins in Breast-Conserving Surgery / 한국유방암학회지

PURPOSE: Intraoperative frozen-section analysis of the lumpect-omy margin during breast-conserving surgery (BCS) is an excellent method in obtaining a clear resection margin. This study aimed to investigate the usefulness of intraoperative circumferential frozen-section analysis (IOCFS) of lumpectomy margin during BCS for breast cancer, and to find factors that increase the conversion into mastectomy. METHODS: From 2007 to 2011, 509 patients with breast cancer underwent IOCFS during BCS. The outer surfaces of the shaved lumpectomy margins were evaluated. A negative margin was defined as no ink on the tumor. All margins were evaluated using the permanent section analysis. RESULTS: Among the 509 patients, 437 (85.9%) underwent BCS and 72 (14.1%) finally underwent mastectomy. Of the 483 pathologically confirmed patients, 338 (70.0%) were true-negative, 24 (5.0%) false-negative, 120 (24.8%) true-positive, and 1 (0.2%) false-positive. Twenty-four patients (4.7%) among total 509 patients had undetermined margins as either atypical ductal hyperplasia or ductal carcinoma in situ in the first IOCFS. The IOCFS has an accuracy of 94.8% with 83% sensitivity, 99.7% specificity, 93.4% negative predictive value, and 99.2% positive predictive value. Sixty-three cases (12.4%) were converted to mastectomy, the first intraoperatively. Of the 446 (87.6%) patients who successfully underwent BCS, 64 patients received additional excisions and 32 were reoperated to achieve clear margin (reoperation rate, 6.3%). Twenty-three of the reoperated patients underwent re-excisions using the second intraoperative frozen section analysis, and achieved BCS. Nine cases were additionally converted to mastectomy. No significant differences in age, stage, and biological factors were found between the BCS and mastectomy cases. Factors such as invasive lobular carcinoma, multiple tumors, large tumor, and multiple excisions increased the conversion to mastectomy. CONCLUSION: The IOCFS analysis during BCS is useful in evaluating lumpectomy margins and preventing reoperation.

Lobular Carcinoma in Situ with Atypical Mass Presentation: a Case Report / Carcinoma lobular in situ com apresentação nodular atípica: relato de caso

Lobular carcinoma in situ (LCIS) is associated with an increased risk of breast cancer and accounts for 1 to 2% of all breast cancers. LCIS diagnosis currently remains one of the major identifiable risk factors for subsequent breast cancer development. Imaging methods are becoming increasingly sensitive, and the consequent detection of small lesions and subtle abnormalities increases the chance of detection of in situ and invasive carcinomas, leading to a reduction in mortality. This report describes a case of a palpable complaint with abnormal imaging findings, including a solid LCIS mass.

O Carcinoma Lobular in situ (CLIS) está associado a um aumento do risco de câncer de mama e representa 1-2% de todas as neoplasias mama. Atualmente, o diagnóstico de CLIS continua a ser um dos maiores fatores de risco identificáveis para o posterior desenvolvimento de câncer de mama. Os métodos de imagem estão cada vez mais sensíveis, fazendo com que a detecção de pequenas lesões e anormalidade sutis aumentemo risco de detecções de carcinomas in situ e invasivos, levando a diminuição da mortalidade. Neste relato será descrito um caso de queixa clínica palpável com alteração de achados de imagem como massa sólida de CLIS.

Clinicopathologic Features of Pleomorphic Invasive Lobular Carcinoma: Comparison with Classic Invasive Lobular Carcinoma

PURPOSE: The purpose of this study was to identify the clinical and pathological factors that differentiate pleomorphic invasive lobular carcinoma (PILC) from classic invasive lobular carcinoma (CILC). METHODS: We retrospectively reviewed the medical records of 65 patients (4.0% of all invasive breast cancer patients) who underwent surgical excision for invasive lobular carcinoma (ILC) between January 2000 and November 2013. All 65 patients were diagnosed with ILC with negative immunohistochemical staining for E-cadherin in the tumor cells. All hematoxylin and eosin slides of the previously diagnosed ILC were reviewed and confirmed by two expert pathologists and we compared the clinicopathologic features between CILC and PILC. RESULTS: CILC was found in 46 cases and PILC, in 19 cases. Of the mammographic findings, a mass or asymmetric density was the most common feature (42.3% of all ILC patients). The most common ultrasonographic feature was a mass (94.9% of all ILC patients). Tumor multiplicity was noted in 10 patients (15.4%) among all ILC patients; eight patients (17.4%) had CILC and two patients (10.5%) had PILC. PILC patients had more grade III tumors (66.7% vs. 8.7%, p=0.002) and a higher Ki-67 labeling index (55.6% vs. 18.6%, p=0.004) than those with CILC. There were no statistical differences in the type of combined in situ component, extensive intraductal component, tumor size, lymphovascular invasion, stage, hormone receptor status, human epidermal growth factor receptor 2 status, distribution of intrinsic subtype, or imaging findings. Moreover, there was no significant difference in survival between CILC and PILC. CONCLUSION: PILC showed more pathological aggressiveness than CILC in terms of tumor grade and Ki-67 index.

Ductal Breast Carcinoma Metastatic to the Stomach Resembling Primary Linitis Plastica in a Male Patient / 한국유방암학회지

Breast cancer metastases to the gastrointestinal tract are very rare occurrences. Among the histological subtypes of breast cancer, invasive lobular carcinomas have a high capacity of metastasis to uncommon sites including the stomach. Conversely, there has not been sufficient evidence supporting the gastric metastasis of invasive ductal carcinoma. Herein, we report a unique case of metastatic ductal breast carcinoma mimicking primary linitis plastica in a male patient, particularly focusing on the clinical and pathological features of presentation. Moreover, we propose a immunohistochemical panel of selected antibodies including those for cytokeratin 20, cytokeratin 7, estrogen receptor, progesterone receptor, E-cadherin, gross cystic disease fluid protein 15, and GATA binding protein 3 for an accurate differential diagnosis.