ArticleEuropean journal of cancer (Oxford, England : 1990)2023
Absence of lobular carcinoma in situ is a poor prognostic marker in invasive lobular carcinoma.
Article in European journal of cancer (Oxford, England : 1990), 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers, 1 of them a synthesis that pooled it.
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Who cites it
4 citing papers in PubMed, 1 synthesis or guideline pooled it, 4 citations in OpenAlex.
- Association of progesterone receptor status with breast cancer prognosis: a meta-analysis.World journal of surgical oncology · 2025Pooled it
- Spatial transcriptomics reveals tumor microenvironment-driven subtypes of invasive lobular carcinoma.Proceedings of the National Academy of Sciences of the United States of America · 2026Article
- Impact of concurrent lobular carcinoma in situ on recurrence outcomes in patients with classic and pleomorphic invasive lobular carcinoma of the breast.Breast cancer research and treatment · 2025Article
- Pitfalls in the Histological Diagnosis of Morphologic Variants of Invasive Lobular Carcinoma of the Breast.Modern pathology : an official journal of the United States and Canadian Academy of Pathology, Inc · 2025Review
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Authors and funding
11 authors at 2 institutions in 2 countries.
Funding
Abstract
aimTo determine if the outcomes of patients with ILC co-occurring with LCIS are similar to pure ILC and if the presence of LCIS is a prognostic factor for ILC.
methodsIn an observational, population-based investigation using data from the MD Anderson breast cancer prospectively collected electronic database, we analysed patients with a diagnosis of stage I-III ILC. Patients were divided into two groups: those with ILC with co-occurring ipsilateral LCIS (ILC + LCIS) and those with pure ILC without a histologically detected co-occurring ipsilateral LCIS (ILC alone). We obtained data on demographics, pathologic tumour size (pT), pathologic lymph node (pN) involvement, estrogen (ER), progesterone (PR) receptor status, HER2 status, Ki67, treatment received, distant recurrence-free and overall survival (DRFS, OS).
resultsWe identified 4217 patients with stage I-III ILC treated at MD Anderson between 1966 and 2021. 45% of cases (n = 1881) had co-existing LCIS. Statistically and numerically, ILC alone tended to associate with pT4 and pN3 stage (P < 0.001), ER/PR negativity (P = 0.0002), HER2 positivity (P = 0.010), higher Ki67 (P = 0.005), non-classical ILC subtype (P = 0.04) and more exposure to neoadjuvant chemotherapy (P = 0.0002) compared to the ILC + LCIS group. The median follow-up time was 6.5 years. Patients with ILC + LCIS had better median DRFS (16.8 versus 10.1 years, Hazard ratio [HR] 0.55, 95% confidence interval [CI] 0.50-0.60, P < 0.0001) and better median OS (18.9 versus 13.7 years, HR 0.62, 95% CI 0.56-0.69; P < 0.0001). Multivariate analysis showed the absence of LCIS to be an independent poor prognostic factor along with a higher pT stage and higher pN stage for DRFS and OS.
conclusionThe findings of this study suggests that the absence of ipsilateral LCIS with ILC is an independent poor prognostic factor and that further studies are warranted to understand this phenomenon.
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