The epithelioid hemangioendothelioma is an uncommon vascular neoplasm. Numerous sites of involvement are possible, but these tumors most commonly arise in the soft tissues, liver, and lung. We report a case of epithelioid hemangioendothelioma presenting as a single lesion on the nasal portion of the maxilla. Histologically, the tumor within bone and skin exhibited cords and nests of plump, epithelioid-appearing cells exhibiting rudimentary vascular differentiation within a myxohyaline stroma. Immunohistochemical reactivities for factor VIII-related antigen, CD31, CD34, and vimentin were demonstrated. Wide local excision with close clinical follow-up seems to be the treatment of choice for these tumors.
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http://dx.doi.org/10.1097/SCS.0b013e3181f50524 | DOI Listing |
Am J Dermatopathol
February 2025
Clinic of Dermatology, IRCCS San Raffaele Hospital, Vita-Salute San Raffaele University, Milan, Italy.
Angiosarcoma of the penis is an exceptionally rare mesenchymal tumor, with only about 30 cases documented in the literature. Because of its rarity and the often nonspecific clinical presentation, histopathological examination plays a critical role in accurate diagnosis. Angiosarcoma of the penis typically arises in the corpus cavernosum but has also been reported in the glans and urethra, often presenting with metastases.
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).
View Article and Find Full Text PDFJACC Case Rep
December 2024
Division of Cardiac Surgery, Toronto General Hospital, University of Toronto, Toronto, Ontario, Canada.
Metastatic disease is a relative contraindication for resection of malignant cardiac tumors. However, certain situations may present themselves when primary cardiac resection may be warranted. We present a 21-year-old male diagnosed with metastatic epithelioid hemangioendothelioma with right ventricular outflow tract involvement for whom surgical resection was successfully performed and discuss strategies.
View Article and Find Full Text PDFCureus
December 2024
Department of Medicine, Division of Endocrinology and Metabolism, King Abdulaziz Medical City, Riyadh, SAU.
Epithelioid hemangioendothelioma (EHE) is a rare form of vascular neoplasm that can manifest with various symptoms or be discovered incidentally in asymptomatic patients. In this report, we describe a case of a 56-year-old male who presented with progressive lower limb weakness over four years. The evaluation revealed severe hypophosphatemia, an inappropriately normal fibroblast growth factor 23 C-terminal (cFGF-23) level, and a 30 x 20 mm hypermetabolic right pleural mass, which was subsequently proven to be EHE.
View Article and Find Full Text PDFCureus
January 2025
Oral and Maxillofacial Surgery, Queen Elizabeth Hospital Birmingham, Birmingham, GBR.
Epithelioid haemangioendothelioma (EHE) is a rare vascular neoplasm characterised by proliferation of vascular endothelial and pre-endothelial cells. The prevalence is less than one in a million people. It is principally observed in the soft tissues of the extremities but can also occur in the bone, brain, liver, lung and lymph nodes.
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