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The Morphologic and Molecular Heterogeneity of Fumarate Hydratase-deficient Leiomyomas: Integrative Molecular Profiling of Uterine Smooth Muscle Tumors With Histologic Feature Correlation.
Int J Gynecol Pathol
January 2025
Departments of Pathology.
The morphologic features of uterine smooth muscle tumors (USMTs) are subject to interobserver variability and are complicated by consideration of features of fumarate hydratase deficiency (FHd) and other morphologic subtypes, with difficult cases occasionally diagnosed as smooth muscle tumor of uncertain malignant potential (STUMP). We compare immunohistochemical findings and detailed morphologic analysis of 45 USMTs by 4 fellowship-trained gynecologic pathologists with comprehensive molecular analysis, focusing on FHd leiomyomas (n=15), compared to a variety of other USMTs with overlapping morphologic features, including 9 STUMPs, 8 usual-type leiomyomas (ULM), 11 apoplectic leiomyomas, and 2 leiomyomas with bizarre nuclei (LMBN). FHd leiomyomas, defined by immunohistochemical (IHC) loss of FH and/or 2SC accumulation, showed FH mutations and/or FH copy loss in all cases, with concurrent TP53 mutations in 2 tumors.
View Article and Find Full Text PDFEarly Outcomes from Proton Craniospinal Irradiation for Leptomeningeal Metastasis From Solid Tumors.
Adv Radiat Oncol
February 2025
Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas.
Purpose: Treatment options for leptomeningeal metastasis (LM) are limited. A recent phase 2 study found that proton craniospinal irradiation (pCSI) was well-tolerated and improved survival. We report our experience with pCSI for solid-tumor LM.
View Article and Find Full Text PDFImpact of smoking on oral mucosa: A cytological and cellular proliferation study.
Tissue Cell
January 2025
Laboratory Medicine Department, Faculty of Applied Medical Science, University of Al Baha, Saudi Arabia. Electronic address:
Background: Cigarette smoking is known to induce various cellular changes and proliferative activities within the oral mucosa. This study compares the effects of smoking on cellular proliferation and cytological alterations using the AgNORs and Pap staining methods.
Methods: We performed statistical analyses to evaluate the mean AgNORs count in smokers and non- smokers.
Exploring a pico-well based scRNA-seq method (HIVE) for simplified processing of equine bronchoalveolar lavage cells.
PLoS One
January 2025
Department of Medical Sciences, Uppsala University, Uppsala, Sweden.
Single-cell RNA sequencing (scRNA-seq) is a valuable tool for investigating cellular heterogeneity in diseases such as equine asthma (EA). This study evaluates the HIVE™ scRNA-seq method, a pico-well-based technology, for processing bronchoalveolar lavage (BAL) cells from horses with EA. The HIVE method offers practical advantages, including compatibility with both field and clinical settings, as well as a gentle workflow suited for handling sensitive cells.
View Article and Find Full Text PDFIdentification of high-risk oral leukoplakia (OLK) using combined Raman spectroscopic analysis of brush biopsy and saliva samples: A proof of concept study.
Spectrochim Acta A Mol Biomol Spectrosc
January 2025
Centre for Radiation and Environmental Science, FOCAS Research Institute, Technological University Dublin, City Campus, Dublin, Ireland; School of Physics, Clinical and Optometric Sciences, Technological University Dublin, City Campus, Dublin, Ireland.
The gold standard method of diagnosis of oral leukoplakia (OLK) is a tissue biopsy followed by histological examination. Raman spectroscopic studies of cytological brush biopsy and saliva samples have previously been shown to differentiate low (no and mild dysplasia) and high risk (moderate and severe dysplasia) OLKs, discriminant models of cellular samples achieving higher specificity, whereas those based on saliva samples achieved higher sensitivity. The current study combines the spectral data sets of cell and saliva samples in an attempt to improve the overall efficiency of the discriminating models.
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