endolymphatic sac

In all other species, however, it ends in an endolymphatic sac.

Neoplasms of the Endolymphatic sac are very rare tumors.

Surgery to decompress the endolymphatic sac has shown to be effective for temporary relief from symptoms.

The vast majority of patients with an endolymphatic sac tumor have von Hippel-Lindau syndrome.

Böttcher's space: Also known as the endolymphatic sac; the blind pouch at the end of the endolymphatic duct.

The tumor involves the endolymphatic sac, a portion of the intraosseous inner ear of the posterior petrous bone.

Computed tomography shows a multilocular, lytic destructive temporal bone mass, centered within the endolymphatic sac (between internal auditory canal and sigmoid sinus).

Other tumors which need to be excluded include a neuroendocrine adenoma of the middle ear (middle ear adenoma), paraganglioma, and endolymphatic sac tumor.

Studies suggest that the endolymphatic duct and endolymphatic sac perform both absorptive and secretory, as well as phagocytic and immunodefensive,functions.

These may develop in the retinas of the eyes (retinal hemangioblastomas) or in the brain or spinal cord, or in the inner ear (endolymphatic sac tumors).

The utricular division of the auditory vesicle also responds to angular acceleration, as well as the endolymphatic sac and duct that connect the saccule and utricle.

This may be related to swelling of the endolymphatic sac or other tissues in the vestibular system of the inner ear, which is responsible for the body's sense of balance.

Running through it is a tube called the endolymphatic duct, which normally carries a fluid called endolymph from the inner ear to the endolymphatic sac in the cranial cavity.

An endolymphatic sac tumor is a very uncommon papillary epithelial neoplasm arising within the endolymphatic sac or endolymphatic duct.

MRI scanning of the inner ear usually shows widened or large vestibular aqueducts with enlarged endolymphatic sacs and may show abnormalities of the cochleae known as Mondini dysplasia.

There are usually several other tumors which are part of the syndrome, including tumors of the central nervous system, kidneys, pancreas, adrenal glands, epididymis, broad ligament, along with the endolymphatic sac.

This tumor has been referred to as adenocarcinoma of endolymphatic sac, Heffner tumor, papillary adenomatous tumor, aggressive papillary adenoma, invasive papillary cystadenoma, and papillary tumor of temporal bone.

Analysis of three-dimensional reconstructions showed that flight-reared larvae had a larger mean endolymphatic sac (ES) and duct volume and a larger average volume of otoconia within the sac when compared to similarly staged ground controls.

Von Hippel-Lindau disease is a dominantly inherited cancer syndrome that massively increases the risk of various tumors including benign hemangioblastomas and malignant pheochromocytomas, renal cell carcinomas, pancreatic endocrine tumors and endolymphatic sac tumors.

The most common tumours found in VHL are central nervous system and retinal hemangioblastomas, clear cell renal carcinomas, pheochromocytomas, pancreatic neuroendocrine tumours, pancreatic cysts, endolymphatic sac tumors and epididymal papillary cystadenomas.

From a pathology perspective, an endolymphatic sac tumor needs to be separated from metastatic renal cell carcinoma, metastatic thyroid papillary carcinoma, middle ear adenoma, paraganglioma, choroid plexus papilloma, middle ear adenocarcinoma, and ceruminous adenoma.