Results 51 to 60 of about 11,178,197 (158)

Langerhans Cell Histiocytosis in Adults: A Canadian Multicenter Case Series

open access: yesHematological Oncology, Volume 44, Issue 5, September 2026.
ABSTRACT Langerhans cell histiocytosis (LCH) is a rare clonal myeloid neoplasm. Canadian data on clinical characteristics, molecular profile, and treatment outcomes is limited. This study aims to report the initial experience of a Canadian rare diseases program, reflecting “real‐world” diagnostic pathways, referral patterns, and treatment heterogeneity
Stephanie Quon   +7 more
wiley   +1 more source

Clinical presentation of neuroendocrine cancer metastasis to an anterior clinoid process meningioma invading superior orbital fissure. A case report

open access: yesFolia Neuropathologica, 2021
Metastasis to a meningioma is an uncommon phenomenon however reported in the literature. Meningiomas are common primary intracranial tumours which most frequently occur to be a recepient of metastases.
Anna Rzehak   +4 more
doaj   +1 more source

Evolutionary Signal and Development of the Foramen Dorsum Sellae (Nov.) Across Primates

open access: yesJournal of Morphology, Volume 287, Issue 9, September 2026.
The dorsum sellae of the sphenoid bone occasionally exhibits an accessory opening, though its significance is unknown. We scored its presence in humans (N = 114) and 30 non‐human primate genera (N = 1468) and combined histological, dissection‐based, and phylogenetic approaches to understand its function. The foramen occurred in 12% of humans and 33% of
Stephanie L. Canington   +7 more
wiley   +1 more source

Micro‐CT informed cranial anatomy of the early rhynchosaur Howesia browni, with implications for rhynchosaur skull evolution

open access: yesPapers in Palaeontology, Volume 12, Issue 4, July/August 2026.
Abstract Rhynchosaurs are unusual archosauromorph reptiles that lived between the Induan and early Norian (Early to early Late Triassic). They are characterized by their stocky build and broad skull with a beak‐like premaxilla. This rather charismatic configuration is most clearly expressed in Late Triassic hyperodapedontine rhynchosaurids.
Stephan N. F. Spiekman   +6 more
wiley   +1 more source

Endoscopic Endonasal Supraoptic and Infraoptic Approaches for Complex “Parasuprasellar” Lesions: Surgical Anatomy, Technique Nuances, and Case Series

open access: yesFrontiers in Oncology, 2022
ObjectiveThe surgical management of lesions involving the lateral area of the suprasellar region, including the lateral aspect of the planum sphenoidale and the tight junction region of the optic canal (OC), anterior clinoid process (ACP), and internal ...
YouYuan Bao   +10 more
doaj   +1 more source

Microrobotic Catheterization of the Ophthalmic Artery for Targeted Treatment of Retinoblastoma

open access: yesAdvanced Intelligent Systems, Volume 8, Issue 6, June 2026.
A microrobotic platform is presented that allows teleoperated and autonomous navigation of flow‐driven magnetic microcatheters, MagFlow, into the ophthalmic artery for superselective intra‐arterial infusion of chemotherapy to treat retinoblastoma. Extensive benchtop validations with patient‐derived biomimetic phantoms under optical and fluoroscopic ...
Artur Banach   +5 more
wiley   +1 more source

3D Geometric Morphometric Analysis on Sexual Dimorphism in the Sella Turcica in Romanov Sheep Using CT Scan

open access: yesVeterinary Medicine and Science, Volume 12, Issue 3, May 2026.
Three‐dimensional geometric morphometric analysis is a shape analysis method used to explain sexual dimorphism. In this context, a total of 13 anatomical landmarks were defined and analysed in the study, resulting in sex‐related shape variations. The study identified sex‐related morphological differences in the sella turcica structures of Romanov sheep
İhsan Berat Kiliçli   +7 more
wiley   +1 more source

Comparative Evaluation of Sella Turcica Morphology and Dimensions in Skeletal Class III Malocclusion and Cleft Lip and Palate Patients Versus Class I Individuals

open access: yesClinical and Experimental Dental Research, Volume 12, Issue 2, April 2026.
ABSTRACT Objectives To compare the morphology and dimensions of the sella turcica in skeletal Class III malocclusion and cleft lip and palate (CLP) with Class I. Material and Methods This comparative cross‐sectional study was conducted at the Armed Forces Institute of Dentistry, Rawalpindi, Pakistan, and involved 540 cases (Class I, Class III ...
Bushra Gul   +6 more
wiley   +1 more source

Optic Foraminotomy for Clipping of Superior Carotid-Ophthalmic Aneurysms

open access: yesFrontiers in Surgery, 2021
Background: Carotid-ophthalmic aneurysms usually cause visual problems. Its surgical treatment is challenging because of its anatomically close relations to the optic nerve, carotid artery, ophthalmic artery, anterior clinoid process, and cavernous sinus,
Matias Baldoncini   +9 more
doaj   +1 more source

Retinal Capillary Density Reduction Contributes to Dysthyroid Optic Neuropathy via an L‐Arginine‐NO Pathway: A Metabonomics and Clinical Trial Study

open access: yesMedComm, Volume 7, Issue 3, March 2026.
Oxidative stress induces endothelial nitric oxide synthase (eNOS) uncoupling and L‐arginine depletion, reducing nitric oxide (NO) bioavailability in vascular endothelium and contributing to decreased retinal capillary density (RCD) in dysthyroid optic neuropathy (DON).
Yunhai Tu   +12 more
wiley   +1 more source

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