1.Lymph node metastasis and prognostic analysis of 354 cases of T1 breast cancer.
Zheng LYU ; Jinghua WANG ; Lihua KANG ; Chunyan HU ; Hua HE ; Meng GUAN ; Jing LI ; Yanjie GUAN ; Yanqiu SONG
Chinese Journal of Oncology 2014;36(5):382-385
OBJECTIVETo analyze the characteristics of lymph node metastasis and prognosis in patients with T1 breast cancer.
METHODSThe clinicopathological data of 354 patients with T1 breast cancer after standard treatment from March 2007 to September 2011 were collected to analyze the relationship between the clinical characteristics of T1 breast cancer, lymph node metastasis and prognostic features.
RESULTSIn the 354 patients with T1 breast cancer, 105 patients (29.7%) had lymph node metastasis, among them 73 cases (69.5%) had 1-3 lymph node metastasis, and 32 cases (30.5%) had more than 4 lymph node metastasis. The lymph node metastasis rate was 8.3% in T1a patients, 39.7% in T1b patients, and 30.4% in T1c cases (P = 0.005). Pairwise comparison showed that the difference of lymph node metastasis rate between T1a, T1b and T1c patients was statistically significant (P = 0.001 and P = 0.006, respectively). The difference of lymph node metastasis rates in T1b and T1c patients was statistically insignificant (P = 0.171). In the 354 patients of T1 breast cancer, 92 patients had vascular tumor thrombi and their lymph node metastasis rate was 71.7%, while the lymph node metastasis rate in 262 patients without vascular tumor thrombus was 14.9% (P < 0.001). The median follow-up was 49 months (range 27-81 months). 12 patients developed recurrence, and 3 patients died, one of them died of cerebrovascular accident. The 4-year disease-free survival for all patients was 96.6%, and the 4-year overall survival rate was 99.2%.
CONCLUSIONSThere is a correlation between vascular tumor thrombus, tumor size and lymph node metastasis rate. The lymph node metastasis rate is lower in T1a patients and relatively higher in T1b/c patients. Compared with patients without vascular tumor thrombus, the T1 breast cancer patients with vascular tumor thrombi have a higher lymph node metastasis rate. Generally speaking, there is a still good prognosis in patients with T1 breast cancer.
Adult ; Aged ; Antineoplastic Combined Chemotherapy Protocols ; therapeutic use ; Breast Neoplasms ; drug therapy ; pathology ; surgery ; Carcinoma, Ductal, Breast ; drug therapy ; pathology ; surgery ; Carcinoma, Lobular ; drug therapy ; pathology ; surgery ; Disease-Free Survival ; Female ; Follow-Up Studies ; Humans ; Lymphatic Metastasis ; Mastectomy, Radical ; Middle Aged ; Neoplasm Recurrence, Local ; Neoplasm Staging ; Neoplastic Cells, Circulating ; Prognosis ; Survival Rate ; Young Adult
2.Adenoid cystic carcinoma of the breast:report of 25 cases.
Lijuan WEI ; ; Xiaofeng LIANG ; ; Shixia LI ; ; Juntian LIU ;
Chinese Journal of Oncology 2014;36(2):147-150
OBJECTIVETo explore the clinical features, management approach and treatment outcomes for adenoid cystic carcinoma (ACC) of the breast.
METHODSThe clinicopathological data of 25 patients with breasts ACC treated in our hospital from years 1990 to 2012 were retrospectively reviewed and their prognosis was analyzed.
RESULTSThe median age of these 25 patients was 53 years (ranged from 31 to 81 years). With the exception of one male case, all patients were female including 17 cases of postmenopausal women. The most frequent presenting symptom is breast lumps, most (48.0%) were in the upper outer quadrant and areola area of the breast. Core needle biopsy was performed in five patients. The specimen finding were adenoids in three and invasive carcinoma in two cases. Axillary lymph node dissection was performed in 23 patients. Only two patients had histologically positive lymph nodes (3 of 14 and 2 of 20). Expression of ER and PR in 14 cases was detected by immunohistochemistry, showing one PR-positive and three ER-positive cases. The median follow-up of the 25 cases was 118 months (ranged from 12 to 244 months). Two patients died of lung metastases at 3 and 10 years after the surgery, respectively.
CONCLUSIONSDue to the complexity of the histology of ACC, adequate sampling of specimens is essential for accurate diagnosis. ACC of the breast is a rare disease with a relatively good prognosis. The low incidence of axillary lymph node metastasis suggests that axillary node dissection is not recommended as a routine procedure. Breast ACC are often with negative ER and PR expression, and the value of adjuvant therapy needs to be further investigated.
Adult ; Aged ; Aged, 80 and over ; Antineoplastic Combined Chemotherapy Protocols ; therapeutic use ; Axilla ; Breast Neoplasms ; drug therapy ; metabolism ; pathology ; surgery ; Breast Neoplasms, Male ; drug therapy ; metabolism ; pathology ; secondary ; surgery ; Carcinoma, Adenoid Cystic ; drug therapy ; metabolism ; pathology ; surgery ; Chemotherapy, Adjuvant ; Cyclophosphamide ; therapeutic use ; Female ; Fluorouracil ; therapeutic use ; Follow-Up Studies ; Humans ; Lung Neoplasms ; secondary ; Lymph Node Excision ; Lymph Nodes ; pathology ; Lymphatic Metastasis ; Male ; Mastectomy ; methods ; Methotrexate ; therapeutic use ; Middle Aged ; Postmenopause ; Receptors, Estrogen ; metabolism ; Receptors, Progesterone ; metabolism ; Retrospective Studies
3.Trastuzumab administered concurrently with anthracycline-containing adjuvant regimen for breast cancer.
Songjie SHEN ; Ying XU ; Qiang SUN ; Changjun WANG ; Yidong ZHOU ; Feng MAO ; Jinghong GUAN ; Yan LIN ; Xuejing WANG ; Shaomei HAN
Chinese Journal of Oncology 2014;36(2):132-136
OBJECTIVETo investigate the safety and efficacy of trastuzumab administered concurrently with anthracycline-containing adjuvant regimen for breast cancer.
METHODSIt is a prospective, randomized and controlled trial. Participants were randomized to receive trastuzumab administered concurrently or sequentially with anthracycline-containing adjuvant regimen. The primary endpoint was cardiac safety. The second endpoints were disease-free survival (DFS) and overall survival (OS).
RESULTSOne hundred and nine breast cancer patients were enrolled and randomized in this trial. Fifty-five participants received trastuzumab administered concurrently with anthracycline-containing adjuvant regimen and 54 patients received trastuzumab administered sequentially with anthracycline. The primary cardiac event was asymptomatic decrease in the left ventricular ejection fraction (LVEF). There was no significant difference between concurrent and sequential groups in cardiac event rates (9.1% vs13.0%, P = 0.556), neither of LVEF values at basline or at 3, 6, 9 and 12 months during trastuzumab treatment (P > 0.05). Four patients (7.3%) in the concurrent group suffered local recurrences or distant metastases, and 6 participants (11.1%) in the sequential group had distant metastases. There was no significant difference between the two groups in DFS (P = 0.724). There was no death in both groups.
CONCLUSIONSTrastuzumab administered concurrently with anthracycline is a safe adjuvant regimen for breast cancer and does not increase cardiac events. Further research is needed to determine the efficacy of this treatment regimen.
Adult ; Anthracyclines ; administration & dosage ; Antibodies, Monoclonal, Humanized ; administration & dosage ; Antineoplastic Combined Chemotherapy Protocols ; therapeutic use ; Breast Neoplasms ; drug therapy ; pathology ; surgery ; Carcinoma, Ductal, Breast ; drug therapy ; pathology ; surgery ; Chemotherapy, Adjuvant ; Disease-Free Survival ; Female ; Follow-Up Studies ; Humans ; Liver Neoplasms ; secondary ; Lymphatic Metastasis ; Middle Aged ; Neoplasm Recurrence, Local ; Prospective Studies ; Stroke Volume ; Trastuzumab
5.Long-term results of personalized treatment in 72 breast cancer patients who failed chemotherapy.
Dong NIE ; Qing-shan YOU ; Jing-wei LUAN ; Yang LI ; Xiang-lan LI ; Ru-tao GUO ; Li-ping ZHANG ; Jing WU
Chinese Journal of Oncology 2013;35(12):941-945
OBJECTIVETo evaluate the efficacy and prognostic factors of personalized treatment for breast cancer patients who failed chemotherapy.
METHODSSeventy-two patients with breast cancer who failed chemotherapy were treated at the Tumor Hospital of Harbin Medical University from January 2001 to January 2012. Among them, 42 cases received 5.6 cycles (range, 4-8 cycles) of postoperative adjuvant chemotherapy, and 30 cases received 12.2 cycles (range, 6-22 cycles), both postoperative adjuvant and salvage chemotherapy. All of the 72 patients of stage IV were given personalized treatment. Under guidance of the principle that multidisciplinary treatment improves control rate but does not or less damage the normal tissues and host immune function, precise radiotherapy combined with Chinese herbal medicine (CHM), biological agent and others were chosen for the patients.
RESULTSThe median survival time was 20 months. Univariate analysis showed that non-invasive ductal carcinoma, less metastasized organs, without brain, liver and lung metastasis, Karnofsky performance scores ≥ 80, not combined with chemotherapy, and multiple courses of Chinese herbal medicine and biolojical agent treatment had significant impact on survival (P < 0.05). Multivariate analysis showed that no brain metastasis, non-invasive ductal carcinoma, and Chinese herbal medicine and biological agent treatment ≥ 7 courses and not combined with chemotherapy had obvious significance (P < 0.05). The rate of grade 3 and 4 treatment-related hematological toxicity was 8.3% (6/72) and 5.6% (4/72), respectively. All the patients with grade 4 hematological toxicity were the cases of grade 3 at hospital admission. No grade 3 and 4 acute radiation damages of the lung and liver were noticed.
CONCLUSIONChinese herbal medicine combined with biological agents and others prolongs survival time in breast cancer patients who failed chemotherapy, and provides an alternative treatment modality for them.
Adult ; Aged ; Aromatase Inhibitors ; therapeutic use ; Bone Density Conservation Agents ; therapeutic use ; Bone Neoplasms ; drug therapy ; secondary ; Brain Neoplasms ; drug therapy ; secondary ; Breast Neoplasms ; drug therapy ; pathology ; radiotherapy ; surgery ; Carcinoma, Ductal, Breast ; drug therapy ; pathology ; radiotherapy ; secondary ; surgery ; Chemotherapy, Adjuvant ; Diphosphonates ; therapeutic use ; Drugs, Chinese Herbal ; therapeutic use ; Female ; Follow-Up Studies ; Humans ; Imidazoles ; therapeutic use ; Lung Neoplasms ; drug therapy ; secondary ; Medicine, Chinese Traditional ; Middle Aged ; Neoplasm Staging ; Nitriles ; therapeutic use ; Radiotherapy, Adjuvant ; Radiotherapy, Conformal ; methods ; Remission Induction ; Retrospective Studies ; Survival Rate ; Treatment Failure ; Triazoles ; therapeutic use
6.Clinicopathological features and prognostic factors of breast cancer patients with inguinal lymph node metastases: a report of 17 cases.
Qian LI ; Bing-he XU ; Pin ZHANG ; Qing LI ; Peng YUAN ; Jia-yu WANG ; Yang LUO ; Fei MA ; Ying FAN ; Qiao LI
Chinese Journal of Oncology 2013;35(3):207-211
OBJECTIVETo analyze the clinicopathological features and prognostic factors of breast cancer patients with inguinal lymph node metastases.
METHODSSeventeen breast cancer patients with inguinal lymph node metastases were treated from January 1999 to December 2010 in our cancer center. All of the patients had a history of breast cancer without other primary cancer. Their clinicopathological characteristics and prognostic factors were surveyed.
RESULTSThe frequency of breast cancer cases with inguinal lymph node metastaseis consisted of 0.11% of the total number of breast cancer patients in the same period. Two patients (11.8%) had inguinal lymph node metastasis only, and multi-site metastases were observed in the remaining 15 (88.2%) patients. The number of ER- and/or PR-positive and negative were 10 (58.8%) and 7 (41.2%) cases, respectively, and among the 13 cases who underwent HER-2 test, the number of HER-2-positive was 4 (30.8%). For the 16 patients who underwent surgery, 9 patients were detected with metastatic axillary lymph nodes equal or greater than 4. All of the 17 patients were treated with chemotherapy.The median follow-up time was 156 months. The 5-year overall survival rate was 49.9%. Univariate analysis revealed that metastatic axillary lymph nodes ≥ 4, ER- and(or) PR-negative, adjuvant chemotherapy ≤ 6 cycles, disease stage as III/IV at diagnosis and the period from diagnosis of breast cancer to the occurrence of inguinal lymph node metastasis ≤ 36 months were predictors of shorter PFS (P < 0.05). Metastatic axillary lymph nodes ≥ 4, ER- and(or) PR-negative, adjuvant chemotherapy ≤ 6 cycles, primary recurrence as multiple distant metastases, the period from diagnosis of breast cancer to the occurrence of inguinal lymph nodes metastasis ≤ 36 months and pleural effusion were predictors of shorter OS (P < 0.05). Multivariate analysis revealed that the period from diagnosis of breast cancer to the occurrence of inguinal lymph node metastasis was an independent prognostic factor concerning PFS (P < 0.05).
CONCLUSIONSThe prognostic factors of breast cancer patients with inguinal lymph node metastases include the number of metastatic axillary lymph nodes, ER and(or) PR status, the cycles of adjuvant chemotherapy, type of primary recurrence, the period from diagnosis of breast cancer to the occurrence of inguinal lymph node metastasis and pleural effusion. Regular and complete physical examination after surgery as well as prompt intensive treatment for high-risk patients may have positive significance in the treatment of such type of patients. However, a type of more reasonable and individualized treatment is warranted in future studies.
Adult ; Aged ; Axilla ; Bone Neoplasms ; secondary ; Breast Neoplasms ; drug therapy ; metabolism ; pathology ; surgery ; Carcinoma, Ductal, Breast ; drug therapy ; metabolism ; pathology ; secondary ; surgery ; Chemotherapy, Adjuvant ; Disease-Free Survival ; Female ; Follow-Up Studies ; Groin ; Humans ; Liver Neoplasms ; secondary ; Lymph Node Excision ; Lymph Nodes ; pathology ; surgery ; Lymphatic Metastasis ; Mastectomy, Modified Radical ; Middle Aged ; Neoplasm Recurrence, Local ; Receptor, ErbB-2 ; metabolism ; Receptors, Estrogen ; metabolism ; Receptors, Progesterone ; metabolism ; Survival Rate
7.Protective effect of dexrazoxane on cardiotoxicity in breast cancer patients who received anthracycline-containing chemotherapy.
Pei WANG ; Sheng ZHANG ; Xiao-bei ZHANG ; Wen-jin LI ; Xiao-meng HAO ; Jin ZHANG
Chinese Journal of Oncology 2013;35(2):135-139
OBJECTIVETo evaluate the cardioprotective effects of dexrazoxane (DEX) on breast cancer patients who received anthracycline-containing chemotherapy.
METHODSA total of 122 breast cancer patients after operation were randomly divided into two groups: The experimental group of 61 cases treated with EPI plus DEX (DEX:EPI = 10:1) as adjuvant chemotherapy regimen, and the control group of 61 cases treated with EPI but without DEX. All patients received four cycles of adjuvant chemotherapy and their changes of specific cardiac functional status and hematology status before and after chemotherapy, as well as non-cardiac toxicity were observed and analyzed.
RESULTSBrain natriuretic peptide (BNP) before chemotherapy and after four cycles of chemotherapy in the control group was (106.78 ± 4.52)×10(-6) µg/ml and (187.19 ± 8.71)×10(-6) µg/ml, respectively, with a significant difference between them (P < 0.05). It in the experimental group was (102.34 ± 8.76)×10(-6) µg/ml and (105.29 ± 7.21)×10(-6) µg/ml, respectively, without a significant difference (P > 0.05). Cardiac troponin T (cTnT) before chemotherapy and after four cycles of chemotherapy in the control group was (12.55 ± 2.73)×10(-3) µg/ml and ( 31.05 ± 7.10 )×10(-3) µg/ml, respectively, with a significant difference between them (P < 0.05). It in the experimental group was (12.70 ± 2.15)×10(-3) µg/ml and (13.65 ± 7.82)×10(-3) µg/ml, respectively, without a significant difference (P > 0.05). The hart rate (HR) before chemotherapy and after four cycles of chemotherapy in the control group, was 75.32 ± 7.14 bpm and 89.60 ± 9.21 bpm, respectively, with a significant difference (P < 0.05). It in the experimental group was 78.60 ± 6.29 bpm and 83.10 ± 7.56 bpm, respectively, without a significant difference (P > 0.05). The left ventricular ejection fraction (LVEF) before chemotherapy and after four cycles of chemotherapy in the control group was (65.23 ± 7.82)% and (55.21 ± 7.23)%, respectively, with a significant difference between them (P < 0.05). It in the experimental group was (64.12 ± 6.25)% and (59.6 ± 4.72)%, respectively, without a significant difference (P > 0.05). The absolute neutrophil count before chemotherapy and after four cycles of chemotherapy in the control group was (3.95 ± 1.36)×10(9)/L and (3.50 ± 1.52)×10(9)/L, respectively, without a significant difference (P > 0.05). It in the experimental group, was (4.96 ± 1.41)×10(9)/L and (3.10 ± 1.26)×10(9)/L, respectively, with a significant difference (P < 0.05). The incidence of grade I-IV bone marrow suppression in the experimental group was 21.3%, 16.4%, 24.6%, and 4.9%, respectively. It in the control group was 16.4%, 11.5%, 9.8%, and 5.5%, respectively, with a significant difference (P < 0.05).
CONCLUSIONSCardiac toxicity after anthracycline treatment in breast cancer patients may be significantly reduced by DEX, without increase of non-cardiac and and non-hematologic toxicity. DEX combined with anthracycline increases the risk of bone marrow suppression, therefore, peripheral blood picture should be monitored or routine bone marrow support may be needed.
Adolescent ; Adult ; Aged ; Antibiotics, Antineoplastic ; adverse effects ; therapeutic use ; Bone Marrow ; drug effects ; Breast Neoplasms ; drug therapy ; metabolism ; pathology ; physiopathology ; surgery ; Cardiovascular Agents ; adverse effects ; therapeutic use ; Chemotherapy, Adjuvant ; Epirubicin ; adverse effects ; therapeutic use ; Female ; Follow-Up Studies ; Heart Rate ; drug effects ; Humans ; Leukocyte Count ; Middle Aged ; Natriuretic Peptide, Brain ; metabolism ; Neutrophils ; cytology ; Razoxane ; adverse effects ; therapeutic use ; Stroke Volume ; drug effects ; Young Adult
8.Clinical analysis of 34 patients with adrenal metastasis from breast cancer.
Qiao LI ; Bing-he XU ; Qing LI ; Pin ZHANG ; Peng YUAN ; Jia-yu WANG ; Fei MA ; Rui-gang CAI ; Ying FAN ; Yang LUO
Chinese Journal of Oncology 2013;35(11):855-857
OBJECTIVETo evaluate the clinical characteristics and prognosis of adrenal metastasis from breast cancer, and to explore methods to improve prognosis.
METHODSThirty-four breast cancer patients with adrenal metastasis were diagnosed and treated in our hospital from Jan. 1999 to Dec. 2010. SPSS 17.0 was used for survival analysis.
RESULTSDuring the Jan. 1999 to Dec. 2010 period, 13 595 patients with breast cancer were treated in our hospital. Among them, 34 cases had adrenal metastasis from breast cancer, with an incidence of 0.25%. The median time to progression (TTP) and overall survival of the 34 patients was 6.2 months (95%CI 3.1-9.3 months) and 21.4 months (95%CI 0-44.0 months), respectively. Eleven patients (34.4%) achieved partial response among 32 patients who received chemotherapy, and 10 (31.2%) achieved stable disease. Patients who achieved best response of PR or SD were superior in TTP and OS than patients with disease progression after chemotherapy (TTP: 18.1 months vs. 2.3 months, P < 0.001; OS: 35.2 months vs. 10.3 months, P = 0.003). Patients who received 1st or 2nd line chemotherapy were superior in TTP than patients who received over 2nd line chemotherapy (TTP: 15.7 months vs. 4.2 months, P = 0.005).
CONCLUSIONSThe incidence of adrenal metastasis from breast cancer is low. Chemotherapy-based systemic therapy should be recommended to improve the prognosis for these patients.
Adrenal Gland Neoplasms ; drug therapy ; secondary ; surgery ; Adrenalectomy ; Adult ; Aged ; Antineoplastic Combined Chemotherapy Protocols ; therapeutic use ; Breast Neoplasms ; drug therapy ; pathology ; Carcinoma, Ductal, Breast ; drug therapy ; pathology ; surgery ; Disease Progression ; Female ; Humans ; Middle Aged ; Remission Induction ; Retrospective Studies ; Survival Rate
9.Clinical characteristics and survival analysis of 22 cases of pure epithelial breast metaplastic carcinoma.
Hui-min MENG ; Yan-fang YANG ; Li-qiang QI ; Lin GU
Chinese Journal of Oncology 2013;35(7):525-529
OBJECTIVEPure epithelial breast metaplastic carcinoma is a rare and highly malignant tumor. In this study, our purpose was to analyze the clinical features, treatment method and prognostic factors, so to explore the approach for early diagnosis and appropriate treatment of this cancer.
METHODSClinical data of 22 patients with histopathologically confirmed pure epithelial breast metaplastic carcinoma and treated at Tianjin Cancer Hospital from 1974 to 2008, were reviewed retrospectively. Survival rate was calculated by life tables. Kaplan-Meier unvariate analysis and Log-rank test were used to compare the survival rates. Multivariate factors for survival were analyzed by Cox proportional hazards regression model.
RESULTSThe median age of the 22 cases of pure epithelial breast metaplastic carcinoma was 52.5 years. Among them 20 cases went to see a doctor for painless mass, and two cases shown as skin inflammation. Clarifying a diagnosis was difficult before operation so that its diagnosis mainly depended on postoperative histopathologic examination. Twelve cases had axillary lymph node metastasis, 7 cases distant metastasis, and the lung was the most common metastatic organ. The 5-year survival rate was 55.6%, with a median follow-up of 46 months. It was found by Kaplan-Meier unvariate analysis that the age (P = 0.044), number of positive axillary lymph nodes (P = 0.011) and therapeutic schedule (P = 0,003) significantly influenced the outcome of the patients, but tumor size (P = 0.194) was not. Cox multivariate analysis results showed that number of positive axillary lymph nodes was independent prognostic factor for pure epithelial breast metaplastic carcinoma (P = 0.038).
CONCLUSIONSPure epithelial breast metaplastic carcinoma is seldom seen. It is easy to cause distant metastasis and has a poor prognosis. ER, PR and HER-2 expressions in most samples are negative. The more axillary lymph nodes have metastasis, the poorer is the prognosis. A reasonable and comprehensive treatment can improve the prognosis obviously.
Adult ; Aged ; Aged, 80 and over ; Axilla ; Breast Neoplasms ; drug therapy ; pathology ; radiotherapy ; surgery ; Carcinoma ; drug therapy ; pathology ; radiotherapy ; surgery ; Carcinoma, Adenosquamous ; drug therapy ; pathology ; radiotherapy ; surgery ; Carcinoma, Squamous Cell ; drug therapy ; pathology ; radiotherapy ; secondary ; surgery ; Chemotherapy, Adjuvant ; Female ; Follow-Up Studies ; Humans ; Lung Neoplasms ; secondary ; Lymph Node Excision ; Lymph Nodes ; pathology ; Lymphatic Metastasis ; Male ; Mastectomy, Radical ; methods ; Middle Aged ; Proportional Hazards Models ; Retrospective Studies ; Survival Rate
10.Invasive lobular carcinoma of basal-like subtype of breast: a clinicopathologic analysis.
Li-ying ZHANG ; Lan-xiang GAO ; Guang LIU ; Guang-zhi YANG ; Juan CHENG ; Hua-ye DING
Chinese Journal of Pathology 2013;42(9):599-603
OBJECTIVETo investigate the clinicopathologic features, clinical progress and prognosis of the basal-like subtype of invasive lobular carcinoma (ILC) of the breast.
METHODSFour cases of ILC were analyzed by detailed histopathologic observation and immunohistochemical staining for E-cadherin, p120 catenin, ER, PR, HER2, CK5/6, EGFR, p63, p53, Ki-67 using MaxVision method. The follow-up and clinical data were analyzed.
RESULTSMorphologically, one case was mixed ILC and three cases were pleomorphic ILC. The tumor cells were negative for E-cadherin except one case with focal membrane positivity, and all showed p120 catenin cytoplasmic positivity except one case with focal membrane positivity. All cases were negative for ER, PR and HER2 (triple negative), and positive for EGFR and CK5/6. Two cases were positive for p63. The cases were partly and weakly positive for p53, and the Ki-67 positive rate was between 30% and 75%. Follow-up data showed that two cases developed chest wall metastases, and in one case, there was progression to liver and abdominal metastases.
CONCLUSIONSILC of the breast are ER, PR and HER2 "triple negative", CK5/6 and EGFR positive, indicative of basal-like characteristics. Basal-like subtype of ILC are peculiarly prone to metastasis and poor response to chemotherapy, suggesting that it is associated with poor prognosis.
Adult ; Aged ; Antineoplastic Combined Chemotherapy Protocols ; therapeutic use ; Biomarkers, Tumor ; metabolism ; Breast Neoplasms ; drug therapy ; metabolism ; pathology ; surgery ; Cadherins ; metabolism ; Carcinoma, Lobular ; drug therapy ; metabolism ; pathology ; secondary ; surgery ; Catenins ; metabolism ; Combined Modality Therapy ; Female ; Follow-Up Studies ; Humans ; Immunohistochemistry ; Keratin-5 ; metabolism ; Keratin-6 ; metabolism ; Ki-67 Antigen ; metabolism ; Liver Neoplasms ; secondary ; Lymphatic Metastasis ; Mastectomy, Modified Radical ; Middle Aged ; Receptor, Epidermal Growth Factor ; metabolism ; Receptor, ErbB-2 ; metabolism ; Receptors, Estrogen ; metabolism ; Receptors, Progesterone ; metabolism ; Thoracic Neoplasms ; secondary ; Thoracic Wall ; Tumor Suppressor Protein p53 ; metabolism

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