Clinical Case: The case is presented of a 21 year-old male with a history of left proptosis and diplopia of two weeks of onset. The MRI showed an ethmoid-orbital vascular lesion with anterior skull base invasion and orbital extension. Biopsy of the ethmoid confirmed fibrovascular tissue, which supported the diagnosis of angiofibroma.
Discussion: It is a benign neoplasm with local characteristics of malignancy due to its ability to invade adjacent areas. In this case, the debut presented with manifestations of orbital extension. A broad and multidisciplinary approach is needed in order to improve prognosis.
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http://dx.doi.org/10.1016/j.oftal.2014.02.010 | DOI Listing |
Am J Ophthalmol Case Rep
March 2025
Department of Ophthalmology, Hospital Sultan Idris Shah, Serdang, Malaysia.
Purpose: To highlight a case report of high-grade primary lacrimal sac Burkitt lymphoma in a young adult.
Observation: A 25-year-old gentleman was referred to the oculoplastic center for left eye medial canthal progressive swelling at the level below the medial canthal tendon for two months associated with tearing. He was initially treated for preseptal cellulitis but failed to respond to antibiotics.
J Phys Chem A
January 2025
Astrophysik/I. Physikalisches Institut, Universität zu Köln, Köln 50937, Germany.
The methoxy radical, CHO, has long been studied experimentally and theoretically by spectroscopists because it displays a weak Jahn-Teller effect in its electronic ground state, combined with a strong spin-orbit interaction. In this work, we report an extension of the measurement of the pure rotational spectrum of the radical in its vibrational ground state in the submillimeter-wave region (350-860 GHz). CHO was produced by H-abstraction from methanol using F atoms, and its spectrum was probed in absorption using an association of source-frequency modulation and Zeeman modulation spectroscopy.
View Article and Find Full Text PDFOrbit
January 2025
Govindram Seksaria Institute of Dacryology, L.V. Prasad Eye Institute, Hyderabad, India.
Purpose: To report the clinical features and operative findings of a series of patients with lacrimal sac mucoceles extending above the anatomic level of the medial canthal tendon (MCT).
Methods: A retrospective chart review of all patients presenting with lacrimal sac mucocele extending above the anatomic level of the MCT over a period of five years from 2019 and 2023. All patients underwent surgical management.
J Phys Chem A
January 2025
Department of Chemistry, Ludwig-Maximilians-Universität München, Butenandtstr. 5-13, D-81377 Munich, Germany.
Recently, we investigated a number of so-called σ- and τ-functionals based on the adiabatic-connection fluctuation-dissipation theorem (ACFDT); particularly, extensions of the random phase approximation (RPA) with inclusion of an exchange kernel in the form of an antisymmetrized Hartree kernel. One of these functionals, based upon the approximate exchange kernel (AXK) of Bates and Furche, leads to a nonlinear contribution of the spline function used within σ-functionals, which we previously avoided through the introduction of a simplified "top-down" approach in which the σ-functional modification is inserted a posteriori following the analytic coupling strength integration within the framework of the ACFDT and which was shown to provide excellent performance for the GMTKN55 database when using hybrid PBE0 reference orbitals. In this work, we examine the analytic "bottom-up" approach in which the spline function is inserted a priori, i.
View Article and Find Full Text PDFJ Clin Neurosci
January 2025
Division of Neurosurgery , University of British Columbia, Vancouver, British Columbia, Canada.
Background: Sinonasal malignancies, in which squamous cell carcinomas are the most common are rare and difficult to treat given the location and anatomical structures involved. Sinonasal malignancies often present late due to non-specific and benign symptoms. Partial resections are often associated with poorer outcomes [1].
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