Myopericytoma is a rare tumor that arises from perivascular myoid cells. Intravascular myopericytoma is an exceptionally rare subtype with a small number of cases reported. Here, we describe the case of a 31-year-old woman who presented with a lump on the dorsum of the right foot for nine months. Imaging indicated that the lesion is in close proximity to the dorsalis pedis vessels. Following surgical excision, the histological analysis revealed a benign neoplasm arising within a vein wall with features of vascular and pericytic differentiation. When using immunohistochemistry, the blood vessels were highlighted by the cluster of differentiation (CD) 31 and smooth muscle actin (SMA) with negative staining for pancytokeratins. These features led to the diagnosis of intravascular myopericytoma.
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http://dx.doi.org/10.7759/cureus.28581 | DOI Listing |
Cureus
October 2024
Department of Laboratory Medicine, National Defense Medical College Hospital, Saitama, JPN.
Myopericytoma is a rare perivascular myoid neoplasm that typically arises in the dermis or subcutaneous tissue, with an intravascular variant also reported. We present a case of an elderly man with a subcutaneous nodule in his lower leg that had persisted for four decades, accompanied by pain in the last several years. Imaging revealed a 20-mm elongated subcutaneous nodule along with a similar intraosseous lesion in the ipsilateral fibula.
View Article and Find Full Text PDFIndian J Pathol Microbiol
August 2024
Department of Histopathology, P.D. Hinduja Hospital and Medical Research Centre, Mumbai, Maharashtra, India.
Int J Surg Pathol
April 2024
Department of Pathology, Hiroshima City Hiroshima Citizens Hospital, Hiroshima, Japan.
Myopericytoma, a perivascular myoid neoplasm, is commonly found in the dermis or subcutaneous tissues; however, its occurrence in visceral organs is unusual. Here, we present an extremely rare tumor of intravascular myopericytoma of the right renal vein. A 44-year-old man was incidentally diagnosed with a mass in the right kidney during a routine checkup.
View Article and Find Full Text PDFMedicine (Baltimore)
December 2023
Department of Surgery, Chungbuk National University Hospital, Chungbuk National University, Cheongju, South Korea.
Introduction: Intravascular myopericytomas are a rare type of myopericytomas. In most previously reported cases, these were benign, occurred on the legs or neck, and had low recurrence rates. We have described a unique case of an intravascular myopericytoma that caused spontaneous deep vein thrombosis.
View Article and Find Full Text PDFAnn Dermatol
November 2023
Department of Dermatology, Dongguk University Ilsan Hospital, College of Medicine, Dongguk University, Goyang, Korea.
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