Myopericytoma

08/01/2017 - "The strongly activating PDGFRB mutation N666K is noted in myopericytomatosis, but not in conventional myopericytoma, suggesting that PDGFRB mutation status may account for their pathogenetic differences. "
08/01/2017 - "Myopericytomatosis: Clinicopathologic Analysis of 11 Cases With Molecular Identification of Recurrent PDGFRB Alterations in Myopericytomatosis and Myopericytoma."
10/30/2023 - "In addition, we report missense alterations in the juxtamembrane domain of PDGFRB in 4 of 5 (80%) sporadic cases, including mutations that have been previously described in sporadic myofibroma and myopericytoma. "
04/01/2021 - "The SRF-RELA gene fusion may represent a subset that in the future may be used to differentiate these myofibromas/myopericytomas from the ACTB-GLI fusion myopericytomas, and PDGFRB may be used to perhaps separate out familial myofibromas from other myofibromas."
02/01/2017 - "We detected PDGFRB mutations in 6/8 (75%) analyzable infantile and in 11/16 (69%) adult MFs but in none of the angioleiomyomas or myopericytomas. "

01/01/2023 - "Recent studies have identified platelet-derived growth factor receptor-beta (PDGFRB) gene mutations in a subset of myofibromas, myopericytomas, and myopericytomatoses but not in angioleiomyomas. "
01/01/2016 - "Pericytes demonstrate a distinct immunohistochemical profile, including expression of smooth muscle actin, CD146, platelet-derived growth factor receptor β, and regulator of G-protein signaling 5. Previously, pericyte-related antigens have been observed to be present among a group of soft tissue tumors with a perivascular growth pattern, including glomus tumor, myopericytoma, and angioleiomyoma. "

11/01/2011 - "The neointimal (myointimal) cells shared morphological and immunohistochemical phenotype with the myopericytoma myoid cells, including α-SMA positivity and desmin negativity. "
03/01/2005 - "Benign and rare malignant myopericytomas of skin and soft tissues are characterized by a concentric, perivascular growth of plump spindled and round tumour cells staining positively for muscle actin, alpha-smooth muscle actin and more rarely for desmin. "
04/01/2007 - "Desmin was diffusely positive in 75.7% of solid-type angioleiomyomas, 51.4% of venous type, and 18% of cavernous type, whereas most of the myopericytomas were negative for desmin, even though desmin-positive cells were only partially seen in 3 myopericytomas. "
07/01/2016 - "Myopericytoma is a perivascular myoid neoplasm of skin and soft tissues characterized by numerous thin-walled blood vessels surrounded concentrically by round to spindle myoid tumor cells, which shows α-smooth muscle actin and h-caldesmon coexpression and commonly negativity for desmin. "
01/01/2006 - "Despite overlapping morphologic features to angioleiomyoma and myofibroma, myopericytoma represents a distinct perivascular, myoid neoplasm of skin and soft tissues, characterized by a broad morphologic spectrum of concentrically, perivascularly growing myoid tumor cells that stain positively for ASMA and often for h-caldesmon, whereas desmin is usually negative. "

04/01/2017 - "Afterward, we investigated the expression levels of MYO1B and h-caldesmon (h-CD) in perivascular myoid cell neoplasms, angioleiomyomas (n=28), glomus tumors (n=23), and myopericytomas (n=3). "
07/01/2016 - "Myopericytoma is a perivascular myoid neoplasm of skin and soft tissues characterized by numerous thin-walled blood vessels surrounded concentrically by round to spindle myoid tumor cells, which shows α-smooth muscle actin and h-caldesmon coexpression and commonly negativity for desmin. "
04/01/2007 - "Immunohistochemically, most tumor cells of all cases of both angioleiomyomas and myopericytomas were diffusely positive for actins (alpha-smooth muscle actin and HHF35) and calponin, and all cases, except for 1 myopericytoma, were also diffusely or focally positive for h-caldesmon. "
01/01/2006 - "Despite overlapping morphologic features to angioleiomyoma and myofibroma, myopericytoma represents a distinct perivascular, myoid neoplasm of skin and soft tissues, characterized by a broad morphologic spectrum of concentrically, perivascularly growing myoid tumor cells that stain positively for ASMA and often for h-caldesmon, whereas desmin is usually negative. "
03/01/2022 - "The tumorous cells expressed α-smooth actin and heavy-chain caldesmon and were negative for epithelial membrane antigen, protein S100, HMB45, CD34, calponin, and desmin, thus providing the final diagnosis of intracranial myopericytoma. "

04/01/2007 - "Immunohistochemically, most tumor cells of all cases of both angioleiomyomas and myopericytomas were diffusely positive for actins (alpha-smooth muscle actin and HHF35) and calponin, and all cases, except for 1 myopericytoma, were also diffusely or focally positive for h-caldesmon. "
03/01/2022 - "The tumorous cells expressed α-smooth actin and heavy-chain caldesmon and were negative for epithelial membrane antigen, protein S100, HMB45, CD34, calponin, and desmin, thus providing the final diagnosis of intracranial myopericytoma. "
10/01/2021 - "The tumorous cells expressed alpha-smooth muscle actin and heavy chain caldesmon and were negative for epithelial membrane antigen, protein S100, HMB45, CD34, calponin and desmin, thus providing the final diagnosis of intracranial myopericytoma. "
01/23/2018 - "The tumorous cells expressed vimentin, alpha-smooth actin and heavy-chain caldesmon and were negative for epithelial membrane antigen, protein S100, HMB45, CD34, calponin and desmin, thus providing the final diagnosis of intracranial myopericytoma."

03/01/2022 - "The tumorous cells expressed α-smooth actin and heavy-chain caldesmon and were negative for epithelial membrane antigen, protein S100, HMB45, CD34, calponin, and desmin, thus providing the final diagnosis of intracranial myopericytoma. "
10/01/2021 - "The tumorous cells expressed alpha-smooth muscle actin and heavy chain caldesmon and were negative for epithelial membrane antigen, protein S100, HMB45, CD34, calponin and desmin, thus providing the final diagnosis of intracranial myopericytoma. "
01/23/2018 - "The tumorous cells expressed vimentin, alpha-smooth actin and heavy-chain caldesmon and were negative for epithelial membrane antigen, protein S100, HMB45, CD34, calponin and desmin, thus providing the final diagnosis of intracranial myopericytoma."

03/01/2022 - "The tumorous cells expressed α-smooth actin and heavy-chain caldesmon and were negative for epithelial membrane antigen, protein S100, HMB45, CD34, calponin, and desmin, thus providing the final diagnosis of intracranial myopericytoma. "
10/01/2021 - "The tumorous cells expressed alpha-smooth muscle actin and heavy chain caldesmon and were negative for epithelial membrane antigen, protein S100, HMB45, CD34, calponin and desmin, thus providing the final diagnosis of intracranial myopericytoma. "
01/23/2018 - "The tumorous cells expressed vimentin, alpha-smooth actin and heavy-chain caldesmon and were negative for epithelial membrane antigen, protein S100, HMB45, CD34, calponin and desmin, thus providing the final diagnosis of intracranial myopericytoma."

06/01/2017 - "No cases of myopericytoma (0/10) showed any nuclear β-catenin expression. "

01/01/2016 - "miRNA expression profiling divides follicular dendritic cell sarcomas into two groups, related to fibroblasts and myopericytomas or Castleman's disease."

01/01/2021 - "Coexistence of primary hepatic myopericytoma and mediastinal Castleman disease in one patient: an interesting 18F-FDG PET/CT imaging case."

01/01/2014 - "The present report shows that renal myopericytoma may be a benign tumor, and surgical excision without adjuvant therapy may be the only potentially curative treatment approach."
05/01/2021 - "Based on the expression of vascular growth factor receptors 2 and 3, an antiangiogenic therapy was suggested for the patient with the myopericytoma. "

03/01/2021 - "We report the case of a 57 year old Caucasian man who was found to have a renal myopericytoma following nephrectomy for suspected renal cell carcinoma. "