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Sella turcica

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https://www.readbyqxmd.com/read/28257736/associations-among-sella-turcica-bridging-atlas-arcuate-foramen-ponticulus-posticus-development-atlas-posterior-arch-deficiency-and-the-occurrence-of-palatally-displaced-canine-impaction
#1
Mona Haji Ghadimi, Fariborz Amini, Shayesteh Hamedi, Vahid Rakhshan
INTRODUCTION: Head and neck skeletal anomalies or normal variants might predict the occurrence of palatally displaced impacted maxillary canines. Despite their clinical importance, studies in this regard are rare, especially when it comes to vertebral anomalies. METHODS: This case-control study was performed on cephalographs of 35 orthodontic patients (11 male, 24 female) with palatally displaced canines (PDC) and 75 patients without them (29 male, 46 female). PDC were diagnosed on panoramic and lateral cephalographs and from clinical reports...
March 2017: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/28230567/magnetic-resonance-imaging-features-of-solitary-hypothalamitis
#2
Hua Zhang, Jing Wang, Yue Wu, Ying Tang, Ran Tao, Hongying Ye, Zhenwei Yao
OBJECTIVE: The study aimed to characterize magnetic resonance imaging (MRI) findings of solitary hypothalamitis and evaluate their clinical value in diagnosis. METHODS: Magnetic resonance imaging scans, including T1-weighted imaging (T1WI), T2-weighted imaging (T2WI), and contrast-enhanced T1-weighted sequences, of 8 biopsy-proven hypothalamitis lesions were retrospectively analyzed along with MRI features including size, shape, signal intensity, enhancement pattern, correlation with adjacent tissues, and changes in infundibular stalk and sella turcica...
March 2017: Journal of Computer Assisted Tomography
https://www.readbyqxmd.com/read/28229571/transnasal-transsphenoidal-brain-injury-by-a-fencing-foil-an-unusual-case-report-and-brief-literature-review
#3
Rafet Özay, Mehmet S Balkan, Çağhan Tönge, Zeki Şekerci
BACKGROUND: In this report, the authors present an unusual case of a 10-year-old child who suffered a severe headache and rhinorrhea that occurred as a result of fencing foil sports injury via transnasal-transsphenoidal (TNTS) pathway. METHODS: Following to trauma, the child had shown neurological symptoms such a pupil dilatation, change in consciousness and mild hemiparesia. Imaging demonstrated destruction of bone structures including posterior wall of sphenoid sinus and anterosuperior part of sella turcica, and also a contusion at right thalamic region...
February 22, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/28217394/technical-nuances-of-subtemporal-approach-for-the-treatment-of-basilar-tip-aneurysm
#4
Vladimir S Nakov, Toma Y Spiriev, Ivan T Todorov, Plamen Simeonov
BACKGROUND: Basilar tip aneurysms are one of the most complex vascular lesions to treat surgically because of their location, depth of the approach, and close proximity of vital neurovascular structures such as the mesencephalon, cranial nerves, perforating arteries to the thalamus. There are different surgical approaches utilized to reach basilar tip aneurysms, namely, pterional, pretemporal, orbitozygomatic, subtemporal, and anterior petrosectomy. Each of them has its advantages and limitations...
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/28120170/xanthomatous-hypophysitis-is-associated-with-ruptured-rathke-s-cleft-cyst
#5
Kai Duan, Sylvia L Asa, Daniel Winer, Zadeh Gelareh, Fred Gentili, Ozgur Mete
Xanthomatous hypophysitis is a rare inflammatory disease of the pituitary gland that can mimic a neoplastic lesion clinically and radiologically. Its pathogenesis remains largely unknown, although recent evidence suggests that pituitary inflammation may occur as a secondary reaction to mucous content released from a ruptured cyst. In a series of 1221 pituitary specimens, we identified seven cases of xanthomatous hypophysitis. Six patients had complete radiological and biochemical workup preoperatively: a cystic-appearing pituitary mass was identified in all six patients (100%) with a mean size of 2...
March 2017: Endocrine Pathology
https://www.readbyqxmd.com/read/28018694/anterior-hypopituitarism-and-treatment-response-in-hunter-syndrome-a-comparison-of-two-patients
#6
Munier A Nour, Paola Luca, David Stephure, Xing-Chang Wei, Aneal Khan
Hypopituitarism is a clinically important diagnosis and has not previously been reported in Hunter syndrome. We contrast two cases with anatomic pituitary anomalies: one with anterior panhypopituitarism and the other with intact pituitary function. Patient 1, a 10-year-old boy with Hunter syndrome, was evaluated for poor growth and an ectopic posterior pituitary gland. Endocrine testing revealed growth hormone (GH) deficiency, secondary adrenal insufficiency, and tertiary hypothyroidism. An improvement in growth velocity with hormone replacement (GH, thyroxine, and corticosteroid) was seen; however, final adult height remained compromised...
2016: Case Reports in Pediatrics
https://www.readbyqxmd.com/read/28009229/transoral-robotic-surgery-for-sellar-tumors-first-clinical-study
#7
Dorian Chauvet, Stéphane Hans, Antoine Missistrano, Celeste Rebours, Wissame El Bakkouri, Guillaume Lot
OBJECTIVE The aim of this study was to confirm the feasibility of an innovative transoral robotic surgery (TORS), using the da Vinci Surgical System, for patients with sellar tumors. This technique was designed to offer a new minimally invasive approach, without soft-palate splitting, that avoids the rhinological side effects of classic endonasal approaches. METHODS The authors performed a prospective study of TORS in patients with symptomatic sellar tumors. Specific anatomical features were required for inclusion in the study and were determined on the basis of preoperative open-mouth CT scans of the brain...
December 23, 2016: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28004764/sheehan-syndrome
#8
Züleyha Karaca, Bashir A Laway, Hatice S Dokmetas, Hulusi Atmaca, Fahrettin Kelestimur
Sheehan syndrome or postpartum hypopituitarism is a condition characterized by hypopituitarism due to necrosis of the pituitary gland. The initial insult is caused by massive postpartum haemorrhage (PPH), leading to impaired blood supply to the pituitary gland, which has become enlarged during pregnancy. Small sella turcica size, vasospasms (caused by PPH) and/or thrombosis (associated with pregnancy or coagulation disorders) are predisposing factors; autoimmunity might be involved in the progressive worsening of pituitary functions...
December 22, 2016: Nature Reviews. Disease Primers
https://www.readbyqxmd.com/read/27922970/morphometric-analysis-of-sella-turcica-using-cone-beam-computed-tomography
#9
Yasin Yasa, Ali Ocak, Ibrahim Sevki Bayrakdar, Suayip Burak Duman, Ismail Gumussoy
OBJECTIVE: The purpose of this study was to assess morphological shape and morphometric analysis of the sella turcica using cone beam computed tomography (CBCT) in different planes of section (coronal and sagittal). MATERIALS AND METHODS: CBCT images of 177 subjects of which 51 males and 126 females in the age group of 11 to 73 years were included in the study population. Linear dimensions which include the length, depth, diameter, and interclinoid distance were measured and the shape of sella turcica was analyzed...
January 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/27855395/evaluation-of-sella-turcica-shape-and-dimensions-in-cleft-subjects-using-cone-beam-computed-tomography
#10
Yasin Yasa, Ibrahim Sevki Bayrakdar, Ali Ocak, Suayip Burak Duman, Numan Dedeoglu
No abstract text is available yet for this article.
November 16, 2016: Medical Principles and Practice: International Journal of the Kuwait University, Health Science Centre
https://www.readbyqxmd.com/read/27830892/the-normal-dimensions-of-the-sella-turcica-in-jordanians-a-study-on-lateral-cephalograms
#11
Jamal H Abu Ghaida, Anas J Mistareehi, Ayman G Mustafa, Saab M Mistarihi, Heba H Ghozlan
BACKGROUND: The Sella turcica is an important anatomic and radiologic entity. The dimensions of the Sella turcica vary greatly in normal individuals and are influenced by genetic and local factors. The main objective of this study is to build up a normative database of the dimensions of the Sella turcica in the Jordanian population. MATERIALS AND METHODS: For this purpose 509 computed cephalograms: 252 males and 257 females, aged 10 to 40 years old healthy Jordanians were collected and divided into two adolescent and adult age groups for both genders...
November 10, 2016: Folia Morphologica (Warsz)
https://www.readbyqxmd.com/read/27820671/contribution-of-lhx4-mutations-to-pituitary-deficits-in-a-cohort-of-417-unrelated-patients
#12
Enzo Cohen, Mohamad Maghnie, Nathalie Collot, Juliane Leger, Florence Dastot, Michel Polak, Sophie Rose, Philippe Touraine, Philippe Duquesnoy, Maïté Tauber, Bruno Copin, Anne-Marie Bertrand, Frederic Brioude, Daniela Larizza, Thomas Edouard, Laura González Briceño, Irène Netchine, Isabelle Oliver-Petit, Marie-Laure Sobrier, Serge Amselem, Marie Legendre
CONTEXT: LHX4 encodes a LIM-homeodomain transcription factor implicated in early pituitary development. In humans, only 13 heterozygous LHX4 mutations have been associated with congenital hypopituitarism. OBJECTIVE: To evaluate the prevalence of LHX4 mutations in patients with hypopituitarism, and to precise the associated phenotypes. To characterize the functional impact of the identified variants and the respective role of the two LIM domains of LHX4. PATIENTS AND DESIGN: We screened 417 unrelated patients with isolated growth hormone deficiency or combined pituitary hormone deficiency associated with ectopic posterior pituitary and/or sella turcica anomalies for LHX4 mutations (Sanger sequencing)...
November 7, 2016: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/27763976/transseptal-subperichondrial-endoscopic-hypophysectomy-with-preservation-of-vital-nasal-structures
#13
Hasmet Yazici, Sedat Doğan, Mehmet Akif Sönmez, Olcay Eser
INTRODUCTION: Pituitary surgery involving different techniques is often applied to the excision of benign adenomas. Operative interventions involved various approaches and techniques. Endoscopic transsphenoidal approach is the less traumatic route to the sella turcica, avoiding brain retraction, and also permitting good visualization, with lower rates of morbidity and mortality. Although mortality of pituitary surgery decreased by advances in surgical techniques morbidities such as synechiae formation, anosmia, bleeding, nasal septal perforations, drying, and incrustation due to traumatization of the nasal structures such as septum, nasal mucosa, and middle concha are the current problems in pituitary surgery...
October 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/27741111/quantitative-analysis-of-anatomical-relationship-between-cavernous-segment-internal-carotid-artery-and-pituitary-macroadenoma
#14
Bon-Jour Lin, Tzu-Tsao Chung, Meng-Chi Lin, Chin Lin, Dueng-Yuan Hueng, Yuan-Hao Chen, Chung-Ching Hsia, Da-Tong Ju, Hsin-I Ma, Ming-Ying Liu, Chi-Tun Tang
Cavernous segment internal carotid artery (CSICA) injury during endoscopic transsphenoidal surgery for pituitary tumor is rare but fatal. The aim of this study is to investigate anatomical relationship between pituitary macroadenoma and corresponding CSICA using quantitative means with a sense to improve safety of surgery.In this retrospective study, a total of 98 patients with nonfunctioning pituitary macroadenomas undergoing endoscopic transsphenoidal surgeries were enrolled from 2005 to 2014. Intercarotid distances between bilateral CSICAs were measured in the 4 coronal levels, namely optic strut, convexity of carotid prominence, median sella turcica, and dorsum sellae...
October 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27642481/-etiological-diagnosis-of-central-diabetes-insipidus-about-41-cases
#15
Fatma Chaker, Melika Chihaoui, Meriem Yazidi, Hedia Slimane
The occurrence of polyuria-polydipsia syndrome with hypotonic urine requires careful diagnostic strategy. This study aims to evaluate diagnostic modalities for central diabetes insipidus. We conducted a retrospective study of 41 cases with central diabetes insipidus (CDI). Data were collected at the Department of Endocrinology, University Hospital La Rabta, Tunis, from 1990 to 2013. We identified the circumstances for detecting CDI, the abnormalities in anterior pituitary assessment and pituitary imaging. CDI occurred in the postoperative period in 20 patients...
2016: Pan African Medical Journal
https://www.readbyqxmd.com/read/27595781/atypical-teratoid-rhabdoid-tumor-in-the-sella-turcica-of-an-elderly-female-with-a-distinct-vascular-pattern-and-genetic-alterations
#16
Sumihito Nobusawa, Satoshi Nakata, Junko Hirato, Takahiro Kawashima, Koji Sato, Hiroya Fujimaki, Naoki Okura, Hayato Ikota, Hideaki Yokoo
No abstract text is available yet for this article.
December 2016: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/27593805/the-role-of-osirix-based-virtual-endoscopy-in-planning-endoscopic-transsphenoidal-surgery-for-pituitary-adenoma
#17
Daniel Rotariu, Alexandru Budu, Ziyad Faiyad, Ion Poeata
AIM: Evaluate the role and accuracy of the virtual endoscopy realized using commercially available software, OsiriX, as a method of planning of surgical interventions. MATERIAL AND METHODS: The CTs of 22 patients with pituitary adenomas proposed for endoscopic approach were reconstructed using OsiriX. VE was performed prior surgery to assess the surgical corridor and particular anatomy. We have evaluated the following landmarks: inferior and middle turbinate, sphenoid ostia (SO), choanal arch (Ch), sphenoethmoidal recess (SER), sphenoid septa, sella turcica, carotid prominences and opticocarotid recesses (OCR)...
January 25, 2016: Turkish Neurosurgery
https://www.readbyqxmd.com/read/27585209/update-on-the-evaluation-of-pediatric-idiopathic-intracranial-hypertension
#18
REVIEW
Aubrey L Gilbert, Gena Heidary
PURPOSE OF REVIEW: Papilledema associated with idiopathic intracranial hypertension (IIH) may result in irreversible, progressive visual loss. The development of tools for the evaluation of pediatric patients with IIH is particularly relevant as many patients may not be able to comply with the detailed clinical evaluation utilized in adults for the treatment and management of this disease. The purpose of this review is to summarize relevant articles on the diagnostic tools used in evaluation and management of pediatric IIH...
November 2016: Current Opinion in Ophthalmology
https://www.readbyqxmd.com/read/27526241/anthropometric-parameters-for-access-to-sella-turcica-through-the-nostril
#19
Yousef Mohamadi, Mahboubeh Mousavi, Reza Pakzad, Gholamreza Hassanzadeh
The pituitary gland is located in the sella turcica. Pituitary tumors constitute approximately 15% of intracranial benign tumors. "Endo nasal endoscopic trans-sphenoidal" method is an appropriate surgical technique to remove this tumor. In this operation an endoscope enters the nasal cavity through the nostril to reach the floor of the sella turcica. The aim of this study was an anthropometric evaluation of the route of endoscope in this surgery. Two hundred twenty-seven patients (116 women, 111 men) were divided into ≥30, 31 to 61, and ≥61-year age groups...
September 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/27400662/characteristics-of-ganglion-cells-in-pituitary-gangliocytomas
#20
Mariangela Novello, Marco Gessi, Francesco Doglietto, Carmelo Anile, Libero Lauriola, Antonella Coli
The occurrence of ganglion cells in the sella turcica, in association or not with a pituitary adenoma, has been rarely reported. Various names have been employed for this rare entity, gangliocytoma being frequently used and recommended by WHO classification. Expression of cytokeratin in these ganglion cells has been previously occasionally reported, a very intriguing observation raising questions on the possible nature and derivation of these cells. We describe the pathological findings in three cases of growth hormone-producing adenomas, all sparsely granulated, showing the presence of a ganglion cell population admixed with an adenomatous component...
February 2017: Neuropathology: Official Journal of the Japanese Society of Neuropathology
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