Publications by authors named "J Kalmar"

Introduction: Solitary fibrous tumor (SFT) represents an uncommon mesenchymal neoplasm affecting primarily the extremities and deep soft tissues with, overall, benign but locally aggressive biologic behavior and an underlying pathognomonic NAB2::STAT6 fusion. Intraosseous SFTs are infrequent, and involvement of the jawbones is exceedingly rare.

Case Presentation: A 54-year-old woman presented with an asymptomatic, well-demarcated, multilocular radiolucency of the left posterior mandible featuring focally irregular borders, root resorption and lingual cortex perforation.

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Article Synopsis
  • The study investigates 10 cases of sarcomatoid squamous cell carcinoma (sSCC), a rare type of oral cancer, examining their clinicopathologic and immunophenotypic characteristics, particularly looking at SATB2 expression.
  • These cases, collected from 2000 to 2023, primarily affected older adults with a male-to-female ratio of 1.5:1, most commonly occurring in the tongue, and showed a variety of tumor appearances and microscopic features.
  • Results indicated that while all lesions tested positive for certain markers, SATB2 expression can vary significantly and may lead to misdiagnosis, highlighting the importance of using multiple markers for accurate identification of oral s
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Manganese-based MXenes are promising two-dimensional materials due to the broad palette of their magnetic phases and the possibility of experimental preparation because the corresponding MAX phase was already prepared. Here, we systematically investigated geometrical conformers and spin solutions of oxygen-terminated MnC MXene and performed subsequent many-body calculations to obtain reliable electronic and optical properties. Allowing energy-lowering using the correct spin ordering supercell magnetic motifs is essential for the MnCO system.

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True malignant mixed tumors, also known as salivary gland carcinosarcoma (SCS), are uncommon yet highly aggressive lesions associated with a poor prognosis. These tumors exhibit a distinctive biphasic structure characterized by both epithelial and mesenchymal components. Recent research has shown that the majority of SCS cases stem from pre-existing pleomorphic adenomas (PAs), suggesting a stepwise developmental pattern.

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A 48-year-old man presented with a chief complaint of intermittent right ear otorrhea of several-month duration, occasional otalgia and progressive unilateral hearing impairment. He also reported frequent episodes of headache and pressure in the sinuses and maxilla. Previous systemic treatment with antibiotics failed to alleviate the symptoms.

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