Results 81 to 90 of about 32,135 (281)

Apoplexia em tumor hipofisário [PDF]

open access: yes, 2009
Pituitary tumor apoplexy is a medical emergency due to acute infarction or hemorrhage in the pituitary gland. In this review, the authors discuss the sellar anatomy, the pituitary gland and adenomas' vascularization and the general aspects of the ...
CHANG, Claudia V.   +4 more
core   +2 more sources

Redescription of the Triassic cynodont Cistecynodon parvus and reassessment of its phylogeny

open access: yesThe Anatomical Record, EarlyView.
Abstract Cynodontia is an important subclade of Therapsida that first occurred in the late Permian. It includes extinct subclades which are the non‐mammaliaform cynodonts and Mammaliaformes, with the latter ultimately giving rise to crown mammals. The systematics of non‐mammaliaform cynodonts has been extensively studied and is relatively well‐resolved,
Erin S. Lund   +4 more
wiley   +1 more source

Evolutionary radiation of large‐bodied gorgonopsians from the lower Abrahamskraal formation of South Africa

open access: yesThe Anatomical Record, EarlyView.
Abstract The middle Permian represents a critical interval in therapsid evolution, when gorgonopsians emerged as some of the first specialized apex predators within terrestrial ecosystems. Despite their significance, the early diversification of Gorgonopsia in Gondwana remains poorly understood due to scarcity and fragmentary material.
Zanildo Macungo   +5 more
wiley   +1 more source

SellaMorph-Net: A Novel Machine Learning Approach for Precise Segmentation of Sella Turcica Complex Structures in Full Lateral Cephalometric Images

open access: yesApplied Sciences, 2023
Background: The Sella Turcica is a critical structure from an orthodontic perspective, and its morphological characteristics can help in understanding craniofacial deformities. However, accurately extracting Sella Turcica shapes can be challenging due to
Kaushlesh Singh Shakya   +6 more
doaj   +1 more source

Challenges in Diagnosing Central Adrenal Insufficiency in Children: Cortisol‐Stimulating Tests are Safe and Often Required

open access: yesClinical Endocrinology, EarlyView.
ABSTRACT Introduction The accuracy and safety of cortisol‐stimulating tests (CSTs) for assessing hypothalamic–pituitary–adrenal (HPA) axis integrity, including the diagnosis of central adrenal insufficiency (CAI), in children remain uncertain. Although these tests can simultaneously evaluate cortisol and growth hormone secretion, the present study ...
Mariana Peduti Halah   +6 more
wiley   +1 more source

Empty sella prevalence: step by step

open access: yesRussian Open Medical Journal, 2021
An empty sella (ES), also known as an empty sella turcica (empty pituitary fossa) is defined as an intrasellar herniation of subarachnoid space within the sella which leads to flattening of the pituitary gland towards the posteroinferior wall. Purpose —
Victoria B. Sharavii   +4 more
doaj   +1 more source

Infrasellar craniopharyngioma - Case report [PDF]

open access: yes, 2001
We report a case of intrasellar craniopharyngioma in a 34 year-old woman who presented with progressive headache and diplopia. Computed tomographic and magnetic resonance images showed a heterogeneous tumor originating from the sphenoid bone with ethmoid
Falavigna, Asdrubal, Kraemer, Jorge Luiz
core   +3 more sources

The Diagnostic Odyssey of a Biochemically Confirmed Case of ML II: The First Western Patient With LYSET Deficiency

open access: yesClinical Genetics, EarlyView.
We identify a female patient with a homozygous nonsense variant (p.Gln38Ter) in the LYSET gene. This is the first western report of a challenging case of an extensive diagnostic odyssey and demonstrates that the LYSET gene must be considered in the differential diagnosis when M6P‐labeled lysosomal enzymes are altered.
Fernanda Sperb‐Ludwig   +5 more
wiley   +1 more source

Evaluation of Sella Turcica Bridging and Morphology in Different Types of Cleft Patients

open access: yesFrontiers in Cell and Developmental Biology, 2020
Objectives To evaluate sella turcica (ST) bridging, associated anomalies, and morphology, in subjects with four different types of clefts, and compare them with non-cleft (NC) subjects.
M. Alam, A. Alfawzan
semanticscholar   +1 more source

From Multiple Congenital Anomalies to Pituitary Gland Malformation: Wide Spectrum of Clinical Features in a Family With FOXA2 Variant

open access: yesAmerican Journal of Medical Genetics Part A, Volume 200, Issue 6, Page 1452-1457, June 2026.
ABSTRACT FOXA2 (hepatocyte nuclear factor‐3β, HNF‐3β) encodes a transcriptional activator involved in early embryogenesis, particularly in the patterning and differentiation of midline structures such as the neural tube, foregut, and pituitary gland. Its role in human pathogenesis was first suspected when patients with deletion of chromosome 20p11.2 ...
Christopher Connolly   +3 more
wiley   +1 more source

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