scholarly journals Colorectal Cancer Prognosis: The Impact of Signet Ring Cell

2019 ◽  
Vol 6 (3-4) ◽  
pp. 57-63
Author(s):  
Refik Bademci ◽  
Jesus Bollo ◽  
M. Carmen Martinez ◽  
Maria Pilar Hernadez ◽  
Eduardo Maria Targarona
Keyword(s):  
Colorectal Cancer ◽  
Signet Ring Cell ◽  
Cancer Prognosis ◽  
Signet Ring ◽  
Ring Cell ◽  
The Impact

A STUDY OF HISTOPATHOLOGICAL DISTRIBUTION IN COLORECTAL CANCER

2021 ◽  
pp. 24-25
Author(s):  
Shipra Singh ◽  
Kailash Chand Jat ◽  
Ajit Singh ◽  
Kunal Purohit
Keyword(s):  
Colorectal Cancer ◽  
Surgical Techniques ◽  
Signet Ring Cell Carcinoma ◽  
Signet Ring Cell ◽  
Lymph Node Status ◽  
Sex Distribution ◽  
Surgical Specimen ◽  
Signet Ring ◽  
Ring Cell ◽  
Causes Of Deaths

Despite of advances in surgical techniques and adjuvant chemotherapeutic regimens, colorectal cancer remains one of the major leading causes of deaths worldwide. Histopathology is an important factor in the treatment and prognosis of cancer. The purpose of this study was to describe the different histopathological pattern in colorectal cancer. 81 cases of colorectal carcinoma received in pathology department over a period of four years were included in the study. The surgical specimen and colonoscopic biopsies' gross features were noted and samples were stained with Haematoxylin and Eosin. Detailed microscopic examination of tumor with lymph node status was done followed by histological typing. Grading of the tumor, age and sex distribution of cases were also noted. The commonest histopathological nding was adenocarcinoma 75.32% followed by mucinous adenocarcinoma 9.88% and signet ring cell carcinoma 8.64%. Among 61 cases of adenocarcinoma most commonly moderately differentiated adenocarcinoma 60.66% was noted.

Primary signet ring cell histology does not portend worse survival for early stage lung cancer following lobectomy

2021 ◽  
pp. 021849232110459
Author(s):  
Terrance Peng ◽  
Anita Yau ◽  
Li Ding ◽  
Elizabeth A. David ◽  
Sean C. Wightman ◽  
...  
Keyword(s):  
Lung Adenocarcinoma ◽  
Early Stage ◽  
Signet Ring Cell ◽  
Rank Test ◽  
Poor Prognostic Factor ◽  
Risk Of Death ◽  
Increased Risk ◽  
Signet Ring ◽  
Ring Cell ◽  
The Impact

Introduction Signet ring cell (SRC) histology is considered a poor prognostic factor in various cancers. However, primary SRC lung adenocarcinoma is rare and poorly understood. Methods The National Cancer Database was queried to identify treatment-naïve patients who received lobectomy for primary SRC or non-SRC pT1-2N0 lung adenocarcinoma <4 cm within four months of diagnosis. SRC lung adenocarcinoma was defined by ICD-O-3 code 8490, while non-SRC lung adenocarcinoma was defined by ICD-O-3 codes 8140, 8141, 8143, 8147, 8255, 8260, 8310, 8481, 8560, and 8570–8574. The Kaplan-Meier curve and log-rank test was used to compare five-year OS between SRC versus non-SRC lung adenocarcinoma cohorts. The impact of SRC histology on risk of death was assessed using the Cox proportional hazards regression model. Results 48,399 patients were included in this study: 62 with primary SRC lung adenocarcinoma and 48,337 with non-SRC lung adenocarcinoma. The mean age of the overall cohort was 67.0 ± 9.6 years. Five-year OS following lobectomy did not differ significantly between SRC lung adenocarcinoma and non-SRC lung adenocarcinoma cohorts (SRC 73.9% vs. non-SRC 69.3%, p = 0.64). SRC histology did not significantly impact risk of death within five years after lobectomy (HR 0.89, p = 0.66). Conclusions Following lobectomy for pT1-2N0 tumors <4 cm, patients with primary SRC lung adenocarcinoma do not experience worse five-year OS or increased risk of death within five years relative to those with non-SRC lung adenocarcinoma. Additional study, including exploration of emerging molecular profiling data, may serve to better define optimal treatment for this histopathologic group of lung adenocarcinomas.

scholarly journals Colorectal Signet Ring Cell Carcinoma in a Young Pregnant Woman

2020 ◽  
Vol 13 (1) ◽  
pp. 182-187
Author(s):  
Francisco Ibargüengoitia Ochoa ◽  
Gerardo Miranda Dévora ◽  
Leonardo Silva Lino ◽  
Cintia Sepulveda Rivera ◽  
Diego González Vázquez ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
Cell Carcinoma ◽  
Stage Iv ◽  
Signet Ring Cell Carcinoma ◽  
Signet Ring Cell ◽  
High Morbidity ◽  
Cancer Stage ◽  
Signet Ring ◽  
Histologic Differentiation ◽  
Ring Cell

Colorectal cancer during pregnancy is one of the less common neoplasms with an incidence of 0.8 in 100,000 pregnancies. Primary colonic signet ring cell carcinoma is a weird variety, characterized by a poor histologic differentiation, with a high morbidity-mortality rate. The case of a 24-year-old patient with a 22-week-old pregnancy and colorectal cancer stage IV in palliative state is presented, with a devastating result. Early diagnosis represents a challenge because of the presentation form and the histologic aggressiveness of this disease. We suggest that colorectal cancer during pregnancy must be treated by a multidisciplinary team.

scholarly journals Predictors of Lymph Node Metastasis and Prognosis in pT1 Colorectal Cancer Patients with Signet-Ring Cell and Mucinous Adenocarcinomas

2017 ◽  
Vol 41 (5) ◽  
pp. 1753-1765 ◽  
Author(s):  
Bao-Rong Song ◽  
Chang-Chun Xiao ◽  
Zhao-Kun Wu
Keyword(s):  
Colorectal Cancer ◽  
Lymph Node ◽  
Survival Rate ◽  
Local Excision ◽  
Signet Ring Cell ◽  
Rectal Tumors ◽  
Node Metastasis ◽  
Colon Cancers ◽  
Signet Ring ◽  
Ring Cell

Background/Aims: The local excision of early colorectal cancer is limited by the presence of lymph node metastasis (LNM). Signet-ring cell carcinomas (SRC) and mucinous adenocarcinomas (MAC) are two relatively infrequent histological subtypes. However, little is known about the predictors of LNM and prognosis to support the feasibility of local excision in early-stage SRC and MAC. Methods: The Surveillance Epidemiology and End Results Database were used to identify all patients with pT1 adenocarcinomas, including conventional adenocarcinoma (AC), MAC, and SRC. The prevalence of LNM was assessed, and the long-term survival rate in the above three types of colorectal cancer was calculated. Results: SRC accounted for 0.3% and MAC accounted for 4.4% of the entire cohort of colorectal adenocarcinomas. Compared to AC, MRC and SRC were more often located in the proximal colon, and exhibited a higher grade. The incidence of LNM in AC, MAC, and SRC was 10.6%, 17.2%, and 33.3% for colon cancers and 14.8%, 25.9%, and 46.2% for rectal cancers, respectively. In patients with lymph nodes resected no less than 12, incidence of LNM in AC, MRC, and SRC was 12%, 21%, and 44% for colon tumors and 17%, 30%, and 14% for rectal tumors, respectively. Although, colon patients MAC showed an entirely worse survival rate than AC, rectum patients MAC showed a similar prognosis to AC. We found that in patients with rectal tumors, SRC had a worse 3 and 5-year prognosis than AC. However, for colon cancers, the prognosis of SRC was similar to that of AC. Histology was not found to be an independent prognostic factor in multivariate survival analysis. Conclusions: MAC and SRC are two distinct subtypes of colorectal cancer that require special attention despite their relatively rare prevalence. pT1 patients with SRC of the rectum and patients with MAC of the colon have higher incidences of LNM, and with these adverse outcomes, local excision is not recommended. AlthoughMAC of the rectum and SRC of colon have a high rate of LNM, the prognosis of these types are similar to that of AC.

Predictors of lymph node metastasis and prognosis in early colorectal cancer patients with signet-ring cell and mucinous adenocarcinomas.

2016 ◽  
Vol 34 (4_suppl) ◽  
pp. 717-717
Author(s):  
Baorong Song ◽  
Yongming Yu ◽  
Xiao Song ◽  
Xinxiang Li ◽  
Xiaoyu Dai ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
Lymph Node ◽  
Lymph Node Metastasis ◽  
Local Excision ◽  
Signet Ring Cell ◽  
Early Colorectal Cancer ◽  
Node Metastasis ◽  
Signet Ring ◽  
Ring Cell ◽  
Colorectal Adenocarcinomas

717 Background: The local excision of early colorectal cancer is limited by the presence of lymph node metastasis. Signet-ring cell carcinomas and mucinous adenocarcinomas are two relatively infrequent histological subtypes. However, little is known about the predictors of lymph node metastases and prognosis to support the feasibility of local excision in early-stage signet-ring cell and mucinous colorectal adenocarcinomas. Methods: The Surveillance Epidemiology and End Results Database (1988 to 2006) from the National Cancer Institute was used to identify all patients with T1 adenocarcinomas, including conventional adenocarcinoma (AC), mucinous adenocarcinomas (MAC), and signet-ring cell carcinoma (SRC). The prevalence of lymph node metastasis was assessed, and the long-term survival rate in the above three types of colorectal cancer was calculated. Results: Final cohorts of 47,260 patients were eligible for analysis. SRC accounted for 0.3% and MAC accounted for 3.7% of the entire cohort of colorectal adenocarcinomas. Compared to AC, SRC and MAC more frequently presented at a younger age, were located in the proximal colon, and exhibited a higher grade. The incidence of lymph node metastasis in AC, MAC, and SRC was 5.8%, 10.8%, and 15.3%, respectively. Patients with SRC were associated with a worse prognosis, regardless of the tumor location. Patients with MAC of the rectum, but not the colon, were associated with a reduced implication of prognosis. After adjusting for other clinicopathological factors, SRC and MAC of the rectum were independently associated with a high risk of death (HR 2.70, CI 1.77-4.12 and HR 1.65, CI 1.38-1.98 for SRC and MAC, respectively). Histology was not found to be an independent prognostic factor in patients with colon cancer. Conclusions: MAC and SRC are two distinct subtypes of colorectal cancer that require special attention despite their relatively rare prevalence. T1 patients with SRC and patients with MAC of the rectum have higher incidences of lymph node metastasis (LNM), and with these adverse outcomes, local excision is not recommended. Although MAC of the colon has a high rate of LNM, the prognosis of this type is similar to that of AC.

Signet ring cell colorectal cancer: Genomic insights into a rare subpopulation of colorectal adenocarcinoma.

2017 ◽  
Vol 35 (4_suppl) ◽  
pp. 606-606
Author(s):  
Krittiya Korphaisarn ◽  
Van Karlyle Morris ◽  
Michael J. Overman ◽  
David R. Fogelman ◽  
Imad Shureiqui ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
Colorectal Adenocarcinoma ◽  
Cpg Island ◽  
Signet Ring Cell ◽  
Molecular Characteristics ◽  
Advanced Tumor Stage ◽  
Molecular Features ◽  
Advanced Tumor ◽  
Signet Ring ◽  
Ring Cell

606 Background: Colorectal signet ring cell carcinoma (SRCC) has been shown to be associated with advanced tumor stage at presentation and worse outcomes. Due to the rarity of this subtype, 1% of all colorectal adenocarcinoma (CRC), little is known about its molecular characteristics. We aimed to characterize the molecular alterations of this subgroup. Methods: Metastatic CRC (mCRC) patients (pts) with signet ring cell (SC) histology who had tumors evaluated with next generation sequencing between February 2009 and November 2015 were reviewed. SC mCRC were classified into 2 groups; SRCC (>50% of signet cells) and adenocarcinoma (AC) with SC component. Genomic alterations, microsatellite instability (MSI) and CpG island methylator phenotype (CIMP) status noted in SC mCRC were compared to non-SC mCRC pts from the Assessment of Targeted Therapies Against Colorectal Cancer program at MD Anderson Cancer Center using Pearson’s χ 2 test. Results: A total of 665 mCRC pts were included in this study. 93 pts (14%) had SC histology of which 30 (32.3%) pts were SRCC. The Table below shows key cancer genes mutation frequencies. Conclusions: Colorectal SRCC has distinct molecular features compared with non-SC and AC with SC component CRC. The frequencies of KRAS, PIK3CA and APC mutations were lower than the frequencies reported in non-SC CRC. SRCC was not associated with MSI-H or CIMP-H tumor in this study. Further studies on identification of activated pathways underlying this worse prognosis and potential therapeutic targets are required. [Table: see text]

Comprehensive molecular profiling of signet-ring-cell carcinoma (SRCC) from the stomach and colon.

2019 ◽  
Vol 37 (4_suppl) ◽  
pp. 63-63
Author(s):  
Alberto Puccini ◽  
Kelsey Poorman ◽  
Mohamed E. Salem ◽  
Richard M. Goldberg ◽  
Anthony Frank Shields ◽  
...  
Keyword(s):  
Cell Carcinoma ◽  
Tumor Location ◽  
Signet Ring Cell Carcinoma ◽  
Signet Ring Cell ◽  
Molecular Profile ◽  
Molecular Characteristics ◽  
Molecular Features ◽  
Signet Ring ◽  
Ring Cell ◽  
The Impact

63 Background: Signet ring cell carcinoma (SRCC) is a rare variant of adenocarcinoma, accounting for about 10% of gastric cancer (GC) and 1% of colorectal cancer (CRC). SRCC is associated with poor prognosis, however little is known about the underlying molecular characteristics. Herein, we aimed to characterize the molecular features of SRCCs, and to compare the molecular profile of SRCC to adenocarcinoma; further, we assessed the impact of tumor location on the molecular profile of SRCC. Methods: SRCCs were analyzed using NGS (MiSeq on 47 genes, NextSeq on 592 genes), immunohistochemistry, and in-situ hybridization. Tumor mutational burden (TMB) was calculated based on somatic nonsynonymous missense mutations, and microsatellite instability (MSI) was evaluated by NGS of known MSI loci. Chi-square and t-tests were used for comparative analyses. Results: A total of 8,500 CRC and 1,100 GC were screened for SRCC histology. Seventy-six SRCC were identified from the CRC cohort (<1%) and 98 from the GC cohort (9%). The most frequently mutated genes in CRC-SRCC were TP53 (47%), ARID1A (26%), APC (25%), KRAS (22%), RFN43 (16%), KMT2D (12%), KMT2C (11%), SMAD4 (10%) and BRAF (10%), while in GC-SRCC were TP53 (42%), ARID1A (27%), CDH1 (11%), BAP1 (7%), PIK3CA (7%), ERBB2 (5%). When compared to non-SRCC histology (N=3522), CRC-SRCC (N=37) showed more frequently mutation in BRCA1 (11% vs 1%, P < .001) and less mutation in APC (19% vs 78%, P < .001), KRAS (22% vs 51%, P = .001) and TP53 (47% vs 73%, P = .001). Among GC cohort, SRCC (N=54) had a higher frequency of mutations in CDH1, BAP1, and ERBB2, and higher rate of amplification MYB compared to non-SRCC (N=540), although none of these differences were statistically significance. When we compared GC-SRCC vs. CRC-SRCC, only the mutation rate in APC (0% vs 25%) and KRAS (2% vs 22%) genes were significantly different (P < .001). Conclusions: Our research is the first to comprehensively characterize the molecular features of SRCC. Our data suggest that SRCCs harbor similar molecular profile, regardless the tumor location. On the other hand, significant differences were observed between SRCCs and non-SRCC tumors, therefore tailored therapy should be provided to these patients.

scholarly journals Trends in the Incidence and Survival Rates of Colorectal Signet-Ring Cell Carcinoma in the South Korean Population: Analysis of the Korea Central Cancer Registry Database

2021 ◽  
Vol 10 (18) ◽  
pp. 4258
Author(s):  
Ji-Hoon Kim ◽  
Hyunil Kim ◽  
Jin Woo Kim ◽  
Hee Man Kim
Keyword(s):  
Colorectal Cancer ◽  
Cell Carcinoma ◽  
Cancer Registry ◽  
Survival Rates ◽  
Relative Survival ◽  
Signet Ring Cell Carcinoma ◽  
Signet Ring Cell ◽  
Signet Ring ◽  
Ring Cell ◽  
Central Cancer Registry

Objective: Signet-ring cell carcinoma (SRCC) is a rare histopathological subtype of colorectal cancer (CRC) constituting approximately 1% of CRC cases. This study analyzed the incidence and survival rates of colorectal SRCC. Methods: We analyzed the incidence and survival rates of colorectal SRCCs based on patients’ data of the Korea Central Cancer Registry. Results: The age-standardized incidence rates of colon and rectum SRCC in 2017 were 0.17 and 0.07 individuals per 100,000, respectively. Between 1993 and 2017, the 1-, 2-, 3-, 4-, and 5-year relative survival rates of patients with colon SRCC were 65.6%, 49.0%, 38.9%, 34.9%, and 33.0%, respectively, while those of patients with rectum SRCC were 69.6%, 47.8%, 38.5%, 32.8%, and 29.4%, respectively. According to the Surveillance, Epidemiology, and End Results summary stages, the 5-year relative survival rates of colon SRCC between 1993 and 2017 were 70.4% for the localized stage, 41.0% for the regional stage, and 7.0% for the distant stage, while those for rectum SRCC were 60.7%, 34.4, and 3.3%, respectively. Conclusions: Although the incidence of colorectal SRCC is extremely low in South Korea, it has been increasing in recent decades. As the prognosis of colorectal SRCC is extremely poor; clinicians should be aware of the differential diagnosis of SRCC in colorectal cancer cases.

scholarly journals Adenocarcinoma with mixed subtypes is a rare but aggressive histologic subtype in colorectal cancer

2019 ◽  
Author(s):  
Hui Sheng ◽  
Xiaoli Wei ◽  
Minjie Mao ◽  
Jincan He ◽  
Tianqi Luo ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
Prognostic Markers ◽  
Signet Ring Cell Carcinoma ◽  
Signet Ring Cell ◽  
Seer Database ◽  
Histologic Subtype ◽  
Prognostic Relevance ◽  
Signet Ring ◽  
Study Population ◽  
Ring Cell

Abstract Background: Though there have been studies investigating the clinicopathologic and prognostic relevance of mucinous adenocarcinoma (MAC) and signet-ring cell carcinoma (SRCC) compared with classic adenocarcinoma (CA), little is known about the prognosis of adenocarcinoma with mixed subtypes (AM) and the differences among these four subtypes. Methods: The statistics of colorectal cancer registered in the Surveillance, Epidemiology and End Results (SEER) database were retrieved and analyzed. We also compared the clinicopathologic and prognostic relevance between CA, SRCC, MAC and AM. Results: The frequencies of these four subtypes were 69.9% (CA, n=15,812), 25.1% (MAC, n=5,689), 3.6% (SRCC, n=814) and 1.4% (AM, n=321). All of MAC, SRCC and AM were significantly related with aggressive features. Only SRCC and AM were independent poor prognostic markers for overall survival by multivariate analysis. The malignancy degree of AM was between MAC and SRCC according to the clinicopathologic associations. The prognosis of AM was significantly worse than MAC but comparable with SRCC. Conclusions: We confirmed the clinicopathologic relevance with aggressive features of MAC and SRCC, as well as the poor prognostic relevance of SRCC by analyzing a large study population. Furthermore, we identified AM as a rare but aggressive histologic subtype in colorectal cancer, which particular attention should be given in clinical practice.

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