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Medial type persistent trigeminal artery associated with a saccular aneurysm at its trunk
Springer Science and Business Media LLC - Tập 43 - Trang 433-436 - 2021
Akira Uchino, Hitoshi Ohno, Ryushi Kondo, Shoichiro Ishihara
There are four types of fetal anastomosis between the carotid and vertebrobasilar arteries at 5 weeks gestation; from caudal to cranial position, these involve the proatlantal intersegmental, hypoglossal, otic, and trigeminal arteries. Excluding otic artery, these arteries may persist rarely. Persistent trigeminal artery (PTA) is the most common carotid-vertebrobasilar anastomosis, and the medial type (intrasellar) PTA is quite rare, accounting for approximately 10% of all PTA cases. An aneurysm is occasionally found at the origin of the PTA. Rarely, an aneurysm arises at the trunk of the PTA. Using magnetic resonance angiography, we identified a case of medial type PTA with an unruptured saccular aneurysm at its trunk.
The mucosal folds at the pancreaticobiliary junction
Springer Science and Business Media LLC - - 2013
Nima Purvis, S. Ali Mirjalili, Mark D. Stringer
Anxiety of first cadaver demonstration in medical, dentistry and pharmacy faculty students
Springer Science and Business Media LLC - Tập 35 - Trang 419-426 - 2013
Ayse Hilal Bati, Mehmet Asim Ozer, Figen Govsa, Yelda Pinar
Anatomy is the fundamental of medical and health professional education. Anatomic dissection enables the examination of the organs in the human cadavers systematically and topographically. The aim of this study was to determine the effect of the first cadaver demonstration and the anxiety of medical, dental and pharmacy students. A questionnaire was distributed to 486 students in the same academic year (2009–2010) at Ege University. The review of anxiety reveals the circumstances such as exhaustion, stress, depression, anxiety, destructive life, deterioration of mental or physical quality or asthenia (over-fatigue), professionally having a serious effect on the students. 486 (85.3 %) students in total participated in this research carried out as based on voluntariness as 338 (93.9 %) students from the medical faculty, 78 (70.9 %) students from the faculty of dentistry and 70 (70 %) students from the faculty of pharmacy. A medium level of anxiety was detected in the students in their first encounter with the cadaver. The state anxiety score (SAS) average taken by all the students who took part in the research is 42.6 ± 5.60 and trait anxiety score average is 46.6 ± 5.0. No discrepancy was detected among the faculties with respect to anxiety score. While the SASs of the male students were higher than the girls, the trait anxiety scores of the girl students were detected to be higher than male students. While the characteristics and the cultural life of our society force the male students into stronger behavioral patterns, they may actually increase their anxiety level in distressed conditions. The fact that trait anxiety is high in both sexes, particularly in female students can be explained by the patient responsibility and the work load undertaken in the professions in the medical field as early as the period of education. Before the students’ applied lessons with the cadavers start, a preparatory session must be planned for this education to decrease the anxiety level by sharing their sensations, feelings and perceptions related to the demonstration.
Anatomic basis for the construction of a musculotendinous flap derived from the pectoralis major muscle
Springer Science and Business Media LLC - Tập 10 - Trang 273-282 - 1988
M. A. Chaffaï, M. Mansat
The vascularization, innervation and termination of the clavicular portion of the pectoralis major muscle were studied by dissection of 7 adult subjects and 2 fetuses. The vascular and nervous autonomy of the clavicular portion was confirmed. Blood-supply was effected by 2 arteries and innervation by an idependent nerve. The exact distribution of the fibers composing the Pectoralis major and their complex insertion are described. It is concluded that the clavicular portion can be employed as an active muscle transplant to the head of the humerus when the short rotator muscles of the shoulder are ineffective.
Topographic relationship between the muscle bands of the zygomaticus major muscle and the facial artery
Springer Science and Business Media LLC - - 2006
Hyun Ho Kwak, Kyung Seok Hu, Kwan Hyun Youn, Guang Chun Jin, Kyoung Sub Shim, C. Fontaine, Hee Jin Kim
Étude anatomique et fonctionnelle des mouvements de la capsule articulaire de l'épaule et de la bourse subacromiale
Springer Science and Business Media LLC - Tập 20 - Trang 16-17 - 1998
K. Birnbaum, A. Prescher, K. D. Heller
The infra-optic course of the anterior cerebral arteries: an anatomic case report
Springer Science and Business Media LLC - Tập 29 - Trang 389-392 - 2007
J. Peltier, A. Fichten, E. Havet, C. Page, P. Foulon, M. Laude, D. Le Gars
Although variations of the anterior part of the cerebral arterial circle of Willis are quite well known, though some anomalies are exceedingly rare. In a 61-year-old female individual, on both sides the precommunicating parts of the anterior cerebral artery were found to course inferiorly to the ipsilateral optic nerves. This anomaly was associated with an agenesis of a left posterior communicating artery. The anatomic features, the possible high prevalence of associated aneurysms of the anterior communicating artery complex as well as implications for surgical planning or endovascular treatment are outlined and embryologic considerations and discussed.
Ultrasonographic evaluation of age-related changes in bowing of the flexor retinaculum
Springer Science and Business Media LLC - Tập 26 - Trang 501-503 - 2004
T. Altinok, H. M. Karakas
The effects of age, gender, and hand dominance on bowing of the flexor retinaculum, used in diagnosing carpal tunnel syndrome, were analyzed. Forty men aged 23–58 years old (39.7±11.2) and 40 women aged 20–57 years old (39.6±11.3) were the normal subjects. A total of 160 wrists was examined with a linear array transducer. Bowing of the flexor retinaculum was measured as the distance from a line drawn between the trapezium and the hamate to the palmar apex of the outer surface of the flexor retinaculum. It was 0.5–3.7 mm (2.00±0.64) for all hands, 0.6–3.7 mm (2.06±0.62) for men, 0.5–3.4 mm (1.96±0.67) for women, 0.5–3.4 mm (1.00±0.64) for dominant, and 0.6–3.7 mm (2.03±0.65) for nondominant hands. There was no difference between genders or dominant vs nondominant hands regarding this parameter. However, it was highly correlated with age (r=0.59, p<0.0001). In conclusion, bowing of the flexor retinaculum measurements should be carefully compared with the standardized values when diagnosing carpal tunnel syndrome.
Anatomic variations of popliteal artery that may be a reason for entrapment
Springer Science and Business Media LLC - Tập 31 - Trang 695-700 - 2009
Z. Asli Aktan Ikiz, Hulya Ucerler, Zuhal Ozgur
The aim of this study was to demonstrate some anatomic variations of popliteal artery and its surrounding structures that may be important especially for popliteal artery entrapment (PAE) syndrome. A cadaveric study in 46 lower limbs was performed to improve the understanding of anatomy of the popliteal artery and its relations with surrounding structures. The popliteal artery was lateral to the popliteal vein in four specimens (8.7%) and deep to popliteal vein in three specimens (6.5%). An aberrant accessory head of gastrocnemius was present in three specimens (6.5%). The popliteal artery and vein were tethered at the adductor magnus hiatus very tightly in one specimen (2.2%). An aberrant medial arterial course around normal medial head of gastrocnemius muscle was seen in one specimen (2.2%). Various anomalous anatomic relationships between muscle and arteries in the popliteal fossa results in arterial compression. We believe that a review of the anatomic variations of the popliteal artery and its surrounding structures will be beneficial for the surgical approaches in PAE.
The morphology of articular cartilage assessed by magnetic resonance imaging (MRI)
Springer Science and Business Media LLC - Tập 16 - Trang 429-438 - 1994
F Eckstein, H Sittek, S Milz, R Putz, M Reiser
Quantitative assessment of cartilage volume and thickness in a formalin-alcohol fixed specimen of a human patella was conducted with magnetic resonance imaging (MRI), as it is still unclear whether the morphology of normal and damaged cartilage can be accurately demonstrated with this technique. MR imaging was carried out at 1.0 T (section thickness 2 mm, in-plane-resolution 0.39 – 0.58 mm) with the following pulse sequences: 1) T1-weighted spin-echo, 2) 3D-MPRA-GE, 3) 3D-FISP, 4) 3D-MTC-FISP, 5) 3D-DESS, 6) 3D-FLASH. Following imaging, the patella was sectioned perpendicular to the articular surface at intervals of 2 mm with a diamond band-saw. The volume of its cartilage was determined from the anatomical sections and the MR images, using a Vidas IPS 10 image analysing system (Kontron). Measurements were carried out with and without the low-signal layer in the transitional zone between the articular cartilage and the subchondral bone. If the low-signal layer was included, the volume was overestimated with MRI by 16 to 19 %. Without the low-signal layer the volumes were less than those determined from the anatomical sections: T1-SE −18,2 %, MPRAGE −22.6 %, FISP −17.1 %, MTC-FISP −9.5 %, DESS −9,3% and FLASH −6.1 %. The coefficient of variation for a 6-fold determination of the volume amounted to between 6.2 % (T1-SE) and 2.6 % (FLASH). The FLASH sequence allowed the most valid and reproducible assessment of the cartilage morphology. The remaining difference from the real volume of the cartilage may be due to the fact that the calcified zone of the cartilage is not delineated by MRI.
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