Morphometric Study of the Korean Adult Pituitary Glands and the Diaphragma Sellae

Ju, Kyo-Sung; Bae, Hack Gun; Park, Hyung-Ki; Chang, Jae-Chil; Choi, Soon-Kwan; Sim, Ki‐Bum

doi:10.3340/jkns.2010.47.1.42

Cited by 17 publications

(15 citation statements)

References 12 publications

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“…The anatomical relationships of the ACP, ON, chiasm, internal carotid artery (ICA), ophthalmic artery (OA) and falciform ligament (FL) are complex and represent important variations. In the past three decades a number of researchers have examined some parts of the supra-and parasellar region, yet the anatomy of this area remains complex and varied (3,7,(9)(10)(11)(12)19,(22)(23)(24)29,31,32,34,35). This region also is one of the most common that can be affected by many neoplastic and vascular neurosurgical lesions.…”

Section: Anterior Klinoid Proçes Mikrocerrahi Anatomisi Ve Varyasyonlmentioning

confidence: 99%

Regional microsurgical anatomy and variations of the anterior clinoid process

Dağtekin

Avcı²,

Uzmansel³

et al. 2014

Turkish Neurosurgery

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The aim of this study was to better define the microsurgical anatomy of the supra/parasellar region and describe variations of the anterior clinoid process (ACP). MATERIAL and METHODS:Fifteen formalin-fixed cadaver heads and 25 dry skulls were used to define the microsurgical anatomy of the ACP and related structures. The presence of the caroticoclinoid foramen (CaCF) as well as other relevant measurements were all noted. Radiological examination of the CaCF was also demonstrated on dry skulls. RESULTS:Interosseous bridges, which form between the anterior and middle clinoid processes or connect all three (anterior, middle and posterior) clinoid processes, were found in 30% of the specimens. The average basal width, length and thickness of the ACP were 7.3 mm, 9.7 mm and 5.4 mm, respectively. Length of the optic nerve (ON) up to the falciform ligament (FL) was 10.9 mm; length of the ON under the FL was 2.7 mm; length of ON after removal of the ACP and unroofing the optic canal was 21.1 mm. CONCLUSION:This study contributes to the relationship of important vascular, neural, bone and dural layers of this region and also demonstrates the variations of ACP by means of microsurgical dissections and radiological examinations. BULGULAR: İnterosseöz köprü, anterior ve orta klinoid proçes birleşmesiyle veya diğer 3 klinoid proçesin (anterior, orta, arka klinoid proçes) birleşmesiyle oluşur ve bu varyasyon %30 oranında tespit edilmiştir. Anterior klinoid proçesin bazal genişliği, uzunluğu ve kalınlığı sırası ile 7,3 mm, 9,7 mm ve 5,4 mm olarak bulunmuştur. Optik sinirin falsiform ligamana olan uzaklığı 10,9 mm, falsiform ligaman altındaki uzaklığı 2,7 mm, optik sinirin anterior klinoid proçes alındıktan ve optik kanal açıldıktan sonraki uzunluğu 21,1 mm olarak bulunmuştur. SONUÇ:Çalışmada anterior klinoid proçes varyasyonları ve bu bölge ile ilgili önemli vasküler, nöral ve kemik yapıların ilişkisi mikrocerrahi ve radyolojik çalışma ile yeniden değerlendirilmiştir.

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Section: Anterior Klinoid Proçes Mikrocerrahi Anatomisi Ve Varyasyonlmentioning

confidence: 99%

Regional microsurgical anatomy and variations of the anterior clinoid process

Dağtekin

Avcı²,

Uzmansel³

et al. 2014

Turkish Neurosurgery

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“…The pituitary volume (272.552 mm 3 ) of the inedia subject is less compared to the normal pituitary volume, which is around 390.99 mm 3 [16]. The height, width, and length of pituitary gland (4.7, 10.5, 10.00 mm) of the inedia subject is small compared to the normal findings on Korean adults reported by Ju et al [15] (8 mm in length, 14 mm in width, and 6 mm in height).…”

Section: Discussionmentioning

confidence: 38%

“…A study conducted by Ju et al [15] on 33 human cadavers (23 were male cadavers in the age group of 23-87 years and 10 were female cadavers in the age group of 28-76 years) reports that in the anterior lobes the mean width, length, and height of the pituitary gland were found to be 14.3 ± 2.1, 7.9 ± 1.3, 6.0 ± 0.9 mm and 8.7 ± 1.7, 2.9 ± 1.1, 5.8 ± 1.0 mm in posterior lobes, respectively. Ertekin et al [16] estimated the volume of 6 male pituitary glands with an age range of 35-66 years, using stereoscopic approaches such as point counting (582.14 ± 140.16 mm 3 ), planimetry (610.08 ± 133.17 mm 3 ), and elliptical formula (390.99 ± 105.46 mm 3 ).…”

Section: Previous Workmentioning

confidence: 99%

Volumetric and Morphometric Analysis of Pineal and Pituitary Glands of an Indian Inedial Subject

Manivannan

2018

Ann Neurosci

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Background: Inedia (Latin for “fasting”) is the ability of a person to live without consuming food and water and to sustain solely by prana, the vital life force in Hinduism. According to Ayurveda, sunlight is one of the main sources of prana, and some practitioners believe that it is possible for a person to survive on sunlight alone. Purpose: In this study, we report the unusual sizes and volumes of both the pineal and pituitary glands in a subject with inedia state for nearly 70 years. Methods: The pineal and pituitary glands were located in the MRI of the subject from coronal, axial, and sagittal images. Segmentation of the pineal and pituitary glands was performed using level set active contours method. Results: The overall volume, size, and shape of the glands were calculated as 38.7604 mm³ for the pineal gland and 272.552 mm³ for the pituitary gland and compared with that of the normal volumes (94.2 ± 40.65 mm³ and 320–718 mm³_, respectively). Conclusion: It was found that the subject has significantly low pineal and pituitary volumes, which fall under the category of normal young child and we could show that the neurohormonal morphology of inedia subject is within childhood range.

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“…Ju et al 16 investigated the normal dimensions of the neurohypophysis in a series of 33 autopsy cases. The dimensions were measured in the craniocaudal and anteroposterior axes instead of along the longest and perpendicular axes.…”

Section: Discussionmentioning

confidence: 99%

Normal dimensions of the posterior pituitary bright spot on magnetic resonance imaging

Côté¹,

Salzman

Sorour³

et al. 2014

JNS

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A n area of T1 hyperintensity is normally observed in the posterior part of the sella turcica on MR images of the brain. This phenomenon, often referred to as the pituitary bright spot (PBS), is thought to result from the T1-shortening effect of stored vasopressin in the posterior lobe of the pituitary 1,12 and is observed in 100% of children 15,17 and in 52% to 100% of adults 5,6,8,19,22 without pituitary disease. The PBS may be absent in up to 48% of normal subjects, more often in older patients.5,23 Individual variations in the appearance of the PBS have been observed. Physiological conditions such as very young age, pregnancy, or lactation may result in an enlarged PBS. 2An abnormal PBS can also be seen in various pathological processes. Central diabetes insipidus (DI) results from low blood levels of vasopressin and may be primary or secondary to a number of causes. In primary central DI, the PBS has been found to be absent in 25% to 100% of cases. 12,15,17 Secondary central DI is a feature of Langerhans cell histiocytosis, germinoma, teratoma, craniopharyngioma, idiopathic giant cell granulomatous hypophysitis, and Wolfram syndrome. When DI was a presenting symptom of one of these conditions, the PBS was always absent. 7,9,12,15,17,18 In conditions in which the posterior pituitary is depleted of its vasopressin granules, the hyperintense T1 signal can also be lost. An absent PBS was observed in 32% of patients with uncontrolled diabetes mellitus 11 and in a patient with severe anorexia nervosa. 21Finally, when the pituitary stalk is interrupted, the vasopressin synthesized in the hypothalamus does not reach the posterior pituitary. The absence of a normal PBS in these cases is often accompanied by an ectopic bright spot due to the storage of vasopressin granules in another anatomical location. A patient with pituitary dwarfism was found to have an absent PBS with an ectopic bright spot. 24Acquired section of the pituitary stalk of traumatic or surgical origin has also been found to result in an absent PBS and ectopic bright spot. Object. The normal pituitary bright spot seen on unenhanced T1-weighted MRI is thought to result from the T1-shortening effect of the vasopressin stored in the posterior pituitary. Individual variations in its size may be difficult to differentiate from pathological conditions resulting in either absence of the pituitary bright spot or in T1-hyperintense lesions of the sella. The objective of this paper was to define a range of normal dimensions of the pituitary bright spot and to illustrate some of the most commonly encountered pathologies that result in absence or enlargement of the pituitary bright spot.Methods. The authors selected normal pituitary MRI studies from 106 patients with no pituitary abnormality. The size of each pituitary bright spot was measured in the longest axis and in the dimension perpendicular to this axis to describe the typical dimensions. The authors also present cases of patients with pituitary abnormalities to highlight the differences and potential ov...

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Morphometric Study of the Korean Adult Pituitary Glands and the Diaphragma Sellae

Abstract: These results provide the safe anatomical knowledge during the transsphenoidal surgery and may be helpful to access the possibility of the development of empty sella syndrome.

Cited by 17 publications

References 12 publications

Regional microsurgical anatomy and variations of the anterior clinoid process

Regional microsurgical anatomy and variations of the anterior clinoid process

Volumetric and Morphometric Analysis of Pineal and Pituitary Glands of an Indian Inedial Subject

Normal dimensions of the posterior pituitary bright spot on magnetic resonance imaging

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