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Objective: Colorectal cancer (CRC) is among the most common cancers in Puerto Rico. Few studies have correlated clinical and pathological variables with the overall survival of CRC patients in Puerto Rico. We report the clinical and pathological characteristics of patients who underwent surgical resection at a community hospital in Puerto Rico.
Methods: Demographic and pathological variables of patients who underwent CRC surgery at Hospital del Maestro from 2006 through 2011 were reviewed. Descriptive statistics (mean, range, and frequency) and the Cox proportional hazards model were used to determine the influence of demographic and pathological variables on survival, after adjusting for age.
Results: Two hundred and five CRC pathology reports were reviewed. Adenocarcinoma represented the most common pathology (202/205; 98.5%). Females represented 52% of the population (106/202) while males represented 48% (96/202). The median age was 71 years (30-96). The right colon was the most common site of presentation (49.7%; 100/201). Stage III was the most common stage at presentation. The presence of mucin, perineural or lymphatic invasion and tumor size were not related to decreased survival. Being male, having a higher stage at diagnosis, and having a moderately or poorly differentiated tumor were characteristics related to decreased survival.
Conclusion: This study provides information on clinical and pathological variables and their influence on the overall survival of CRC patients at a community hospital in Puerto Rico. Further research must be performed to identify potential disparities and their influence on the prognosis of this patients.
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ESC Heart Fail
September 2025
Department of Clinical and Molecular Medicine, Sapienza University, Rome, Italy.
Heart failure (HF) is a multifactorial and pathophysiological complex syndrome, involving not only neurohormonal activation but also oxidative stress, chronic low-grade inflammation, and metabolic derangements. Central to the cellular defence against oxidative damage is nuclear factor erythroid 2-related factor 2 (Nrf2), a transcription factor that orchestrates antioxidant and cytoprotective responses. Preclinical in vitro and in vivo studies reveal that Nrf2 signalling is consistently impaired in HF, contributing to the progression of myocardial dysfunction.
View Article and Find Full Text PDFMult Scler
September 2025
Department of Quantitative Health Sciences, Mayo Clinic, Rochester, MN, USA.
Background: Tumefactive demyelination (TD) is a rare variant of multiple sclerosis (MS) characterized by tumor-like lesions that often require aggressive management. Genome-wide association studies (GWAS) identified variants associated with MS; similar analyses in TD are lacking.
Objective: A GWAS was performed to identify variants associated with TD.
J Pathol Transl Med
September 2025
Department of Pathology and Laboratory Medicine, University of California, Irvine (UCI), Irvine, CA, USA.
Chronic lymphocytic leukemia/small lymphocytic lymphoma (CLL/SLL) is a clinically indolent lymphoproliferative disorder characterized by accumulation of mature B-cell lymphocytes. Given the common CD5 co-expression, mantle cell lymphoma (MCL) is one of the most important entities in the differential diagnosis. MCL and CLL/SLL might exhibit overlapping morphologic and immunohistochemical features, making diagnosis particularly difficult in cases of composite lymphomas.
View Article and Find Full Text PDFJ Pathol Transl Med
September 2025
Department of Pathology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.
Background: This study aimed to reclassify a subset of poorly differentiated salivary gland carcinoma that do not conform to any entities of the current World Health Organization (WHO) classification into the category of undifferentiated carcinoma (UDC) because they lack specific histologic differentiation or immunophenotype.
Methods: Cases of salivary gland carcinomas from Asan Medical Center (2002-2020) that did not fit any existing WHO classification criteria and were diagnosed as poorly differentiated carcinoma, high-grade carcinoma, or UDC, were retrospectively reviewed. Immunohistochemical (IHC) staining for p40, neuroendocrine markers, androgen receptor (AR), and gross cystic disease fluid protein 15 (GCDFP-15) and Epstein-Barr virus (EBV) in situ hybridization (ISH) were performed.
J Pathol Transl Med
September 2025
Department of Pathology, Chonnam National University Hwasun Hospital, Chonnam National University Medical School, Hwasun, Korea.
Central nervous system tumors with BCL6 corepressor (BCOR) internal tandem duplications (ITDs) constitute a rare, recently characterized pediatric neoplasm with distinct molecular and histopathological features. To date, 69 cases have been documented in the literature, including our institutional case. These neoplasms predominantly occur in young children, with the cerebellum representing the most frequent anatomical location.
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