Loading...
  • rare tumor
  • This rare tumor should be suspected when T1-weighted images show signal hyperintensity and T2-weighted images show signal iso- or hypointensity, with mild contrast enhancement of the lesion. (ajnr.org)
  • Bednar
  • A final diagnosis of Bednar tumour was formulated. (hindawi.com)
  • The presence of pigmented cells in Bednar tumour requires careful differential diagnosis with malignant or benign pigmented skin tumours. (hindawi.com)
  • The latter, also called Bednar tumour (BT), differs from typical DFSP by the presence of characteristic melanin-pigmented dendritic cells. (hindawi.com)
  • Bednar tumor is also known as pigmented DFSP because it contains dark-colored cells that give may give the tumor a multi-colored (i.e red and brown) appearance. (malacards.org)
  • The underlying cause of Bednar tumor is unknown. (malacards.org)
  • Bednar Tumor, also known as pigmented dermatofibrosarcoma protuberans , is related to dermatofibrosarcoma protuberans and ring chromosome 4 . (malacards.org)
  • An important gene associated with Bednar Tumor is PDGFB (Platelet Derived Growth Factor Subunit B), and among its related pathways/superpathways are Embryonic and Induced Pluripotent Stem Cell Differentiation Pathways and Lineage-specific Markers and Neural Stem Cell Differentiation Pathways and Lineage-specific Markers . (malacards.org)
  • invade
  • They also invade surrounding tissues and are metastatic, initiating the growth of similar tumors in distant organs. (thefreedictionary.com)
  • Central nervous system changes occur as the lesions invade and destroy tissue, and, because the tumors compress the brain, cranial nerves, and cerebral blood vessels, the compression causes cerebral edema and increased intracranial pressure (ICP). (thefreedictionary.com)
  • bone
  • In our case, there was no history of a current or prior melanotic skin lesion, and there was no other organ involvement on computed tomography imaging or bone scintigraphy scan. (thefreedictionary.com)
  • brown tumor a giant-cell granuloma produced in and replacing bone, occurring in osteitis fibrosa cystica and due to hyperparathyroidism. (thefreedictionary.com)
  • 2. a bone tumor, ranging from benign to frankly malignant, composed of cellular spindle cell stroma containing multinucleated giant cells resembling osteoclasts. (thefreedictionary.com)
  • Purpose:To determine the rate at which computed tomographically guided pelvic percutaneous bone biopsy in men with metastatic castration-resistant prostate cancer (mCRPC) yields adequate tissue for genomic profiling and to identify issues likely to affect diagnostic yields.Materials and Methods:This study was institutional review board approved, and written informed consent was obtained. (biomedsearch.com)
  • As the tumor grows, bone is destroyed suggesting a malignant process. (blogspot.com)
  • fibrous
  • McCune-Albright syndrome occurs when fibrous dysplasia is accompanied by the appearance of scattered areas of melanotic skin pigmentation (cafe-au-lait spots) and sexual precocity. (thefreedictionary.com)
  • supratentorial
  • Seizures are a presenting symptom in approximately 20% of patients with supratentorial brain tumors and may antedate the clinical diagnosis by months to years in patients with slow-growing tumors. (uchile.cl)
  • pediatric
  • In children, however, it only accounts for an estimated 1.8 to 6.3% of all pediatric malignant renal tumors. (readbyqxmd.com)
  • Detailed histopathological classification of tumors from a cohort of patients ( n = 87) composed mainly of children entered into the International Society of Pediatric Oncology (SIOP)/United Kingdom Children's Cancer Study Group PNET3 trial ( n = 65), included identification of the large cell/anaplastic phenotype. (aacrjournals.org)
  • cellular
  • Histologic analysis revealed a highly cellular tumor, which was depicted as a clustering growth pattern that diffusely invaded the spinal cord ( Fig 5 ). (ajnr.org)
  • lymphomas
  • Lymphomas are a group of malignant blood cell tumors that develop from lymphocytes. (jomfp.in)
  • Lymphomas are a group of malignant blood cell tumors that develop from lymphocytes representing 2.2% of all malignant neoplasms of the head and neck. (jomfp.in)
  • Diffuse large B-cell lymphomas (DLBCLs) are a heterogeneous group of tumor and the most common type of all non-Hodgkin's lymphomas (NHLs). (jomfp.in)
  • prognosis
  • Among them, stem-like cells (hMB-SLCs) represent a fraction of the tumor cell population with the potential of self-renewal and proliferation and have been associated with tumor poor prognosis. (readbyqxmd.com)
  • diagnosis
  • We report the case of a 25-year-old male kidney donor who was referred to our centre for an unusually coloured kidney with normal function, but with a diagnosis of melanotic kidney. (thefreedictionary.com)
  • radiation
  • When possible, the treatment is the complete removal of the tumor, combined with radiation therapy and chemotherapy. (malacards.org)
  • In cases where the tumor can't be removed completely, the treatment is with radiation and chemotherapy. (malacards.org)
  • spinal
  • Sagittal T1-weighted MR image shows the spinal cord tumor at the level of the conus medullaris, which has a slight and homogeneous signal hyperintensity relative to that of the cord. (ajnr.org)
  • No clear limits of the tumor could be found in the spinal cord or on the nerve roots. (ajnr.org)
  • Axial T1-weighted images demonstrate the intramedullary position of the tumor, which occupies nearly the entire spinal canal. (ajnr.org)