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424 results
  • A rare pericytic tumor of the kidney: The first case in Korea. [Journal Article]
    Int J Surg Case Rep 2019; 66:178-181Chung JW, Park JY, … Kwon TG
  • CONCLUSIONS: Although general biological behavior of published renal pericytic tumors is likely to be benign, the clinicopathologic experiences are very limited. Therefore, we should evaluate the malignant potential of the entity according to the parameters proposed for soft tissue tumors, including tumor location, tumor size, growth pattern, cellularity, cytological atypia, and mitotic figures with atypical forms. The current case shows several worrisome features, including an extremely rare tumor location, partially infiltrative growth, and a mildly increased proliferating index, which resulted in it being classified as an uncertain malignant potential.We described the first case of renal pericytic tumor, addressing uncertain malignant potential, in a Korean male, which would be a distinct mesenchymal neoplasm differentiating from other groups of perivascular tumor families based on histological and immunohistochemical features.
  • Myofibromatosis. [Journal Article]
    Fetal Pediatr Pathol 2019; :1-8Rastogi K, Singh L
  • CONCLUSIONS: 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.
  • Congenital hemangioma of the face-Value of fetal MRI with prenatal ultrasound. [Case Reports]
    Radiol Case Rep 2019; 14(11):1443-1446Kolbe AB, Merrow AC, … Ruano R
  • We report the presentation, workup, and pre/perinatal management of a fetus with a large congenital hemangioma of the face. Hemangiomas are benign vascular neoplasms frequently encountered in neonates and infants. The less common congenital variant develops in utero and can present on prenatal ultrasound with diagnostic uncertainty as well as clinical implications for delivery. The differential d…
  • Infantile Myofibroma Presenting as a Large Ulcerative Nodule in a Newborn. [Case Reports]
    Case Rep Pediatr 2019; 2019:3476508Shahzad F, Chappell AG, … Chamlin S
  • The differential diagnosis of a congenital cutaneous vascular-appearing mass in a newborn is broad and includes both benign and malignant tumors. We report the case of a newborn who presented with an erythematous exophytic skin nodule on the right upper leg. Excision was performed due to ulceration, concern for bleeding, and for diagnosis. Pathology revealed the mass to be an infantile myofibroma…
  • Novel SRF-ICA1L Fusions in Cellular Myoid Neoplasms With Potential For Malignant Behavior. [Journal Article]
    Am J Surg Pathol 2020; 44(1):55-60Suurmeijer AJ, Dickson BC, … Antonescu CR
  • Pericytic tumors comprise a histologic continuum of neoplasms with perivascular myoid differentiation, which includes glomus tumors, myopericytoma, myofibroma, and angioleiomyoma. Despite their morphologic overlap, recent data suggest a dichotomy in their genetic signatures, including recurrent NOTCH gene fusions in glomus tumors and PDGFRB mutations in myofibromas and myopericytomas. Moreover, S…
  • Solitary orbital myofibroma in a child: A rare case report with literature review. [Case Reports]
    Indian J Ophthalmol 2019; 67(7):1240-1245Madhuri BK, Tripathy D, Mittal R
  • Myofibroma is a rare benign mesenchymal tumor of uncertain histogenesis. A six-year-old boy presented with a unilateral lower eyelid mass of six weeks' duration. MRI revealed a circumscribed mass in the inferolateral orbit with bony erosion. A systemic examination was unremarkable. Excision with histopathology revealed a partially infiltrative spindle cell tumor with bland nuclear morphology expr…
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