Results 21 to 30 of about 454,745 (260)

Methylation-based reclassification and risk stratification of skull-base chordomas

open access: yesFrontiers in Oncology, 2022
Background Skull-base chordomas are rare malignant bone cancers originating from the remnant of the notochord. Survival is variable, and clinical or molecular factors cannot reliably predict their outcomes.
Xulei Huo   +8 more
semanticscholar   +1 more source

Ewing sarcoma with very late metastasis in the skull: a case report

open access: yesJournal of Medical Case Reports, 2022
Ewing sarcoma is a malignant bone tumor; however, its prognosis has improved since the development of modern chemotherapy. Although Ewing sarcoma outcomes have improved, issues related to late complications, secondary malignant neoplasms, and late ...
Ryota Hagihara   +6 more
semanticscholar   +1 more source

A “Wait-and-See” Approach to Quiescent Single-System Langerhans Cell Histiocytosis to Spare Children From Chemotherapy

open access: yesFrontiers in Pediatrics, 2020
Background: Langerhans Cell Histiocytosis (LCH) is a childhood disorder of histiocytes that is generally treated with systemic chemotherapy. Spontaneous resolution has been previously reported in Single System LCH (SS-LCH), which is less aggressive than ...
Bernice Oh   +5 more
doaj   +1 more source

Sinonasal neoplasms in 49 dogs: clinical, macroscopic, and histopathological aspects [PDF]

open access: yesPesquisa Veterinária Brasileira, 2020
: This study aimed to quantify nasosinusal neoplasms diagnosed in dogs in 20 years (2000-2019) and characterize the main clinical, macroscopic, and histological aspects of these neoplasms. The sex, breed, age, skull conformation, the main clinical signs,
Giulia F.S. Ricaldi   +6 more
doaj   +1 more source

Biphenotypic Sinonasal Sarcoma-Case Report and Review of Clinicopathological Features and Diagnostic Modalities. [PDF]

open access: yes, 2019
Background Biphenotypic sinonasal sarcoma is a recently described malignancy showing dual differentiation with both myogenic and neural elements. Due to its histologic similarities to other sinonasal malignancies, it is a diagnostic challenge.
Chitguppi, Chandala   +6 more
core   +2 more sources

Primary Intraosseous Cavernous Hemangioma of the Clivus: Case Report and Review of the Literature

open access: yesJournal of Neurological Surgery Reports, 2013
Primary intraosseous hemangiomas are benign, vascular malformations that account for approximately 1% of all primary bone neoplasms. These tumors are mostly found in vertebral bodies and are rarely seen in the calvarium, where they represent 0.2% of bony
Yakov Gologorsky   +7 more
doaj   +1 more source

Squamous cell carcinoma of the scalp with intracranial extension: The importance of various imaging modalities [PDF]

open access: yesVojnosanitetski Pregled, 2023
Introduction. Around 2% of all cutaneous neoplasms arise in the scalp and can be classified as either primary or metastatic. The intracranial extension is rare in cutaneous malignancies but can generally occur if left un-treated. Squamous cell carcinoma (
Stošić Srđan   +4 more
doaj   +1 more source

The role of midfacial degloving in modern rhinological practice [PDF]

open access: yes, 1999
The midfacial degloving approach has been available for twenty five years and is slowly increasing in popularity in the management of extensive benign lesions of the sinonasal region, for selected malignancy in this area and to afford access to the ...
Howard, DJ, Lund, VJ
core   +1 more source

Odontoameloblastoma with extensive chondroid matrix deposition in a guinea pig [PDF]

open access: yes, 2018
Odontoameloblastomas (previously incorporated within ameloblastic odontomas) are matrix-producing odontogenic mixed tumors and are closely related in histologic appearance to the 2 other types of matrix-producing odontogenic mixed tumors: odontomas and ...
Hedley, J   +4 more
core   +1 more source

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