• The posterior boundaries of the sphenoid sinus usually include the sella turcica medially and cavernous sinuses laterally. (medscape.com)
  • Hamberger described 3 types of pneumatization based on its relationship to the sella turcica: conchal (rudimentary or absent sphenoid sinus), presellar (a posterior sphenoid sinus wall that is separated from sella by thick bone), and sellar (a posterior sphenoid sinus wall that is adjacent to sella). (medscape.com)
  • Authors have described a quite common fourth configuration, postsellar type, in which sphenoid sinus extends beyond the sella turcica so that the sella forms a portion of the roof of the sphenoid sinus. (medscape.com)
  • In addition, the optic chiasm and internal carotid arteries are often intimately associated with posterior or lateral walls of sphenoid sinus. (medscape.com)
  • A considerable degree of variability exists in the anatomy of the sphenoid sinus, sella turcica, and surrounding skull base structures. (web.app)
  • A) Frontal view shows the greater sphenoid wings (G) and pterygoid plates (P) resembling the wings of a bird with extended limbs, respectively.The sphenoid sinus (S), posterior wall of the orbit (O), and planum sphenoidale (N) are also highlighted. (web.app)
  • In empty sella syndrome, the sella turcica (the bony structure at the base of the brain that houses the pituitary gland) fills with cerebrospinal fluid, partially or completely compressing the gland and may enlarge the sella turcica. (msdmanuals.com)
  • Overview of the Pituitary Gland The pituitary is a pea-sized gland that is housed within a bony structure (sella turcica) at the base of the brain. (msdmanuals.com)
  • The sella turcica protects the pituitary but allows very little room for expansion. (msdmanuals.com)
  • The sella turcica may enlarge, and the pituitary gland may shrink, causing the sella to appear empty on imaging studies. (msdmanuals.com)
  • 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. (romj.org)
  • Methods - We carried out a systematic search in both Russian and English databases (E-library, PubMed, GoogleScholar, OxfordPress, ClinicalKeys) using keywords "empty sella", "empty sella turcica", "empty pituitary fossa", "prevalence" and their combinations. (romj.org)
  • Particularly W. Busch, in 1951, performed a large study of 788 human cadavers during autopsy examination of the sella turcica and observed in 40 of 788, predominantly women, a sella turcica with an incomplete diaphragma sellae, where the pituitary gland was not absent but flattened in a way that it formed a thin layer of tissue in the periphery [7-12]. (romj.org)
  • Ventral to the midbrain is the body of the sphenoid featuring the sella turcica, the midline depression containing the pituitary gland and distal pituitary stalk through the opening of the diaphragma sellae. (neurosurgicalatlas.com)
  • In addition, the anterior wall of Rathke's pouch forms both the pars tuberalis and the anterior lobe of the pituitary, the most common sites for craniopharyngiomas. (craniopharyngiomas.com)
  • The topography of the sella turcica, which lodges the hypophysis cerebri, is of importance now that surgery has succeeded in dealing with certain tumours and enlargements of this organ. (co.ma)
  • The more the sphenoidal sinuses project backwards, beneath the sella turcica, the thinner is the plate of bone which separates the sinus from that part of the posterior fossa of the base of the skull which supports the pons. (co.ma)
  • Several mechanisms responsible for the headache have been suggested and they include irritation of the meninges and the superior division of the trigeminal nerve within the cavernous sinus , compression of the dura mater and sellar wall enlargement. (symptoma.com)
  • 28 ] Congdon classified the SS into three types, based on the degree of pneumatization relative to the sella turcica: conchal, presellar, and sellar. (surgicalneurologyint.com)
  • Erosion of the sellar walls and cavernous sinus invasion also suggest a more invasive nature, but estimation of mitotic index and subclassifications based on genetic and ultrastructural studies are research tools without significant clinical utility. (bmj.com)
  • The sella is bounded anteriorly by the tuberculum sellae and posteriorly by the dorsum sellae and its posterior clinoid processes. (neurosurgicalatlas.com)
  • Care must be taken as the tuberculum sella is approached as there is a fold of dura that comes down with the tuberculum sella and, if this is grabbed with the Kerrison punch, a cerebrospinal fluid (CSF) leak will result. (web.app)
  • Here, the anterior and posterior rectus sheaths connect with the three lateral abdominal wall muscles: the external oblique, the internal oblique and the transverse abdominal. (radiologyassistant.nl)
  • The anterior limit of the anterior skull base is the posterior wall of the frontal sinus. (medscape.com)
  • Invasion of the sphenoidal sinus was in contact with both carotids and the anterior wall of the sella turcica ( Fig. 1 ). (isciii.es)
  • The anterior surface is in contact with the diaphragm and the anterior abdominal wall. (yourdictionary.com)
  • after removing it the sinuses are opened up by removing their anterior walls and the septum. (co.ma)
  • The hypophysis is then exposed by breaking down the anterior portion of the floor of the sella turcica, which forms a bullous-like projection into the superior and posterior part of the sinuses. (co.ma)
  • this image shows the anatomy of the stomach showing its main features and parts.in this images we see the wall of the stomach being removed from the anterior portion to display the contents of the sto. (edoctoronline.com)
  • MRI result: tumor mass with infiltration of the nasal septum, sphenoidal sinus, frontal sinus, maxillary sinus, and left orbit medial wall. (isciii.es)
  • Caldwell or anteroposterior view visualizes the medial orbital wall, the lateral and superior orbital rims, as well as the ethmoid and frontal sinuses. (medscape.com)
  • 6 , 15 ] The endoscopic transsphenoidal approach to the CS was first performed in the 1990s,[ 8 , 10 ] and comprises an excellent logical route to remove CS tumors, especially PAs, through the medial CS wall. (surgicalneurologyint.com)
  • In the transsphenoidal approach, tumors invading the CS through its medial wall are approached inferomedially following the direction of tumor growth, which spares the cranial nerves. (surgicalneurologyint.com)
  • Likewise, the choroid fissure and plexus in the medial wall at the interventricular foramen are pulled in a similar manner. (ehd.org)
  • The primordial hippocampus dorsal to the choroid fissure follows the same growth pattern lying first in the medial wall of the inferior horn, then in the floor. (ehd.org)
  • The posterior wall is thin and adjacent to the superior sagittal sinus and frontal lobe dura. (medscape.com)
  • Of these, three are on the posterior wall, viz. (medmuv.com)
  • Both ultimately send feedback signals to the kidneys Kidneys The kidneys are a pair of bean-shaped organs located retroperitoneally against the posterior wall of the abdomen on either side of the spine. (lecturio.com)
  • CT scans demonstrated a well-defined expansive growing mass with a diameter of 5 cm comprising areas of calcifications and thinning and remodeling of the walls of predominantly the right pterygoid processes and clivus, but with preserved posterior and upper margin. (biomedcentral.com)
  • The parietal bones form the lateral walls and roof of the cranium. (pdfslide.us)
  • The right trochlear (CNIV) nerve has also gained the lateral wall by penetrating the dura between the free and attached edges of the tentorium cerebelli. (neurosurgicalatlas.com)
  • Dura mater lateral to the body of the sphenoid (lateral wall of cavernous sinus) has been stripped to reveal the cavernous sinus, the cavernous internal carotid artery, and the ophthalmic (CNV1) nerve. (neurosurgicalatlas.com)
  • Empty sella syndrome occurs most often in middle-aged women who are overweight and who have high blood pressure. (msdmanuals.com)
  • The growth of the tumor is restricted to the sella turcica. (symptoma.com)
  • Este estudio tiene como objetivo presentar un caso clínico de un paciente de 33 años, que desarrollaron síntomas de desconexión interhemisférica después de la cirugía para la extirpación del tumor en la región pituitaria y alteraciones en la función ejecutiva y evaluar la aplicabilidad del programa de rehabilitación neuropsicológica para las quejas cognitivas. (bvsalud.org)
  • The third projection, or lateral view, is most useful in visualizing the orbital roof, maxillary and frontal sinuses, zygoma, and sella turcica. (medscape.com)
  • Perpendicular plate: forms posterior part of lateral wall of nasal cavity 2. (slideshare.net)
  • superior and middle nasal conchae project inferomedially from lateral wall 2. (slideshare.net)
  • Due to increased complex abdominal wall surgery, pre-operative CT planning with abdominal wall mapping has gained increasing attention. (radiologyassistant.nl)
  • In this article we will adress the key imaging features of complex abdominal wall hernias. (radiologyassistant.nl)
  • Because abdominal wall hernias are defects of the fascia of the abdominal wall, these fascia layers need to be brought together during surgery. (radiologyassistant.nl)
  • Abdominal wall hernias can be divided into primary hernias, that are not related to incisions and incisional hernias. (radiologyassistant.nl)
  • Primary abdominal hernias are hernias, that are located at certain weak spots in the abdominal wall. (radiologyassistant.nl)
  • Postoperative disrupted abdominal wall management by a new tissue expansion technique. (who.int)
  • Sixteen patients (ten with one or more intestinal fistula) developed abdominal wall dehiscence were included in this study. (who.int)
  • What scroll-shaped bones are visible on the inferior lateral walls of this cavity? (freezingblue.com)
  • The large heart and liver bulge the ventral body wall but to a lesser degree than previously. (ehd.org)
  • As the head continues to raise from the ventral chest wall, the cervical fold disappears and the neck region becomes well defined. (ehd.org)
  • Since that time, craniopharyngiomas have been found along the path of development of Rathke's pouch from the pharynx to the floor of the sella, as well as above and within the sella. (craniopharyngiomas.com)
  • What bones form the upper jaw, the lateral walls of the nasal cavity, and teh floor of the orbits? (freezingblue.com)
  • Empty sella syndrome may cause no symptoms at all and seldom causes serious symptoms. (msdmanuals.com)
  • Development of empty sella. (romj.org)
  • There is still some debate over whether who first introduced the term 'empty sella', W. Bush or H. L. Sheehan and V. K. Summers. (romj.org)
  • Several bones that help form the walls of the nasal cavity have air-containing spaces called the paranasal sinuses, which serve to warm and humidify incoming air. (usk.ac.id)
  • When, on the other hand, the sphenoidal sinuses are small and do not extend backwards below the sella turcica, the latter may be difficult to identify. (co.ma)