A 66-year-old man visited our clinic suffering from swelling of right pharyngeal space. He was not aware of other symptoms. The contrast CT showed patchy enhancement with calcification. The enhanced MRI revealed a non-homogeneous signal pattern and patchy central enhancement. During surgery, egg-shaped hard elastic tumor was observed in parapharyngeal space without any sign indicating an invasion into surrounding nerves or feeding vessels. Then the tumor was removed without significant hemorrhage or damage to the cranial nerve. Histological examination of the tumor revealed a nodular lesion with blood clot and hematoma encapsulated with fibrous tissue having vascular spaces of irregular shape and size. From those findings, the tumor was diagnosed as papillary endothelial hyperplasia (PEH). However, since the location of the tumor differed from that of PEH commonly observed in the intravascular space, the tumor was classified as extravascular PEH.
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http://dx.doi.org/10.1016/j.anl.2004.05.007 | DOI Listing |
BMC Pediatr
January 2025
Department of Pediatrics, Huazhong University of Science and Technology Union Shenzhen Hospital, Shenzhen, China.
Background: Generalized lymphatic anomaly (GLA) is a rare congenital lymphatic malformation (LM) characterized by multiple infiltrating lymphangiomas in various tissues. Owing to its rarity, information on this disease is obtained mainly through case reports, leading to delayed diagnosis. In this study, we reported a case of generalized lymphatic anomaly in a pediatric patient manifesting as hemorrhagic pleural effusion.
View Article and Find Full Text PDFFront Immunol
January 2025
Institute of Urology and Nephrology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China.
Background: Muscle-invasive bladder cancer (MIBC) is a prevalent cancer characterized by molecular and clinical heterogeneity. Assessing the spatial heterogeneity of the MIBC microenvironment is crucial to understand its clinical significance.
Methods: In this study, we used imaging mass cytometry (IMC) to assess the spatial heterogeneity of MIBC microenvironment across 185 regions of interest in 40 tissue samples.
Transl Cancer Res
November 2024
Division of Hematology and Oncology, Department of Internal Medicine, Froedtert & the Medical College of Wisconsin, Milwaukee, WI, USA.
Am J Case Rep
December 2024
Department of Oncology-Ophthalmology, Curie Institute, Paris, France.
Indian Dermatol Online J
September 2024
ICMR-NIOP, New Delhi, Delhi, India.
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