Vascular tumors of the orbit include capillary hemangioma, cavernous hemangioma, hemolymphangioma, hemangiopericytoma and a few rare tumors. Capillary hemangioma and hemolymphangioma, occurring mainly in children, are covered in the chapter devoted to childhood tumors. In this chapter, cavernous hemangioma and hemangiopericytoma are discussed as well as rare vascular tumors. Although orbital varix is not a tumor, it is also considered because of the diagnostic problems and the close correlation of orbital varix with a true tumor: hemolymphangioma.
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http://dx.doi.org/10.1016/j.neuchi.2010.02.028 | DOI Listing |
JAMA Dermatol
January 2025
Division of Dermatology, Departments of Medicine and Pediatrics, Washington University School of Medicine in St Louis, St Louis, Missouri.
Importance: Cutaneous pyogenic granulomas (PGs) are commonly encountered, benign, vascular tumors, in which epidemiologic factors have been variably reported, in part, due to sample size limitations and a focus on either adult or pediatric patients.
Objective: To assemble a large dataset of pathologically diagnosed PGs across the continuum of age and investigate patterns of PGs by demographic factors, including age, sex, and anatomical location.
Design, Setting, And Participants: This retrospective case series included case reports of patients with pathologically confirmed PGs of cutaneous origin reported between April 1, 2010, to March 31, 2020.
Adv Sci (Weinh)
January 2025
Department of General Surgery, Tangdu Hospital, Air Force Medical University, Xi'an, 710038, P. R. China.
Leaky and structurally abnormal blood vessels and increased pressure in the tumor interstitium reduce the infiltration of CAR-T cells in solid tumors, including triple-negative breast cancer (TNBC). Furthermore, high burden of tumor cells may cause reduction of infiltrating CAR-T cells and their functional exhaustion. In this study, various effector-to-target (E:T) ratio experiments are established to model the treatment using CAR-T cells in leukemia (high E:T ratio) and solid tumor (low E:T ratio).
View Article and Find Full Text PDFFront Immunol
January 2025
Department of Urology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, China.
Introduction: The role of mast cells (MCs) in clear cell renal carcinoma (ccRCC) is unclear, and comprehensive single-cell studies of ccRCC MCs have not yet been performed.
Methods: To investigate the heterogeneity and effects of MCs in ccRCC, we studied single-cell transcriptomes from four ccRCC patients, integrating both single-cell sequencing and bulk tissue sequencing data from online sequencing databases, followed by validation via spatial transcriptomics and multiplex immunohistochemistry (mIHC).
Results: We identified four MC signature genes (TPSB2, TPSAB1, CPA3, and HPGDS).
Cell Death Dis
January 2025
Department of Medical Research Center, Affiliated Hospital of Jining Medical University, Jining Medical University, Jining, Shandong, China.
Compromised vascular integrity facilitates the cancer cells extravasation and metastasis. However, the mechanisms leading to a disruption in vascular integrity in colorectal cancer (CRC) remain unclear. In this study, PCDH17 expression was higher in the vascular endothelial cells of colon cancer with distant metastasis, and the rates of PCDH17 endothelial cells (ECs) was associated with the M stage in clinical pathological characteristics analysis and correlated with a poor survival prognosis.
View Article and Find Full Text PDFVirchows Arch
January 2025
Department of Pathology, Boston Children's Hospital and Harvard Medical School, Boston, MA, USA.
Liver masses are common in children, however primary malignant neoplasms are rare, representing only 1% of all pediatric cancers. Hepatocellular neoplasms are the most common primary liver malignancies and hepatoblastoma (HB) is the most frequently diagnosed. The incidence of HB, which is increasing, is approximately of 2 cases per million in the United States, followed by hepatocellular carcinoma (HCC).
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