Glomus tumor was also the name formerly (and incorrectly) used for a tumor now called a paraganglioma. A glomus tumor is a rare neoplasm arising from the. Paragangliomas account for % of all neoplasms in the head and neck region, and about 80% of all paraganglioms are either carotid body tumors or glomus. glomus vagal que tienen una llamativa predilección para las mujeres.9 Base de cráneo y cuello (timpánico, foramen yugular, nervio vago y tumor carotídeo.
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These tumours are seen in adults, typically between 40 and 60 years of age, with a moderate female predilection 3. D ICD – Case Glomus tympanicum Author s.
GLOMUS TIMPANICO by Silvia Acuña on Prezi
Paragangliomas in the skull base are ubiquitous in their distribution and arise from paraganglia or glomus cells situated at the following sites:. These tumors tend to have a bluish discoloration, although a whitish appearance may also be noted.
Glomus jugulare paraganglioma Temporal bone destructive lesions differential. In other projects Wikimedia Commons. Presentation Middle aged lady presented with sensorineural hearing loss, tinnitus and vertigo. Posterior inferiorly there is destruction of the basi occiput and lateral aspect of foramen magnum. In one report, a patient with more than glomus tumors had thrombocytopenia as a result of platelet sequestration i.
While it is a rare tumor, it is the most common of the jugular fossa tumours.
A few cases of malignant glomus tumors have been reported; however, they are usually only locally invasive, and metastases are exceedingly rare. Loading Stack – 0 images remaining.
Laterally the lesion is extending in the middle ear cavity epi, meso and hypotympanum and external auditory canal. Malignant glomus tumors have been subdivided into three categories based on their histologic uugular Case 5 Case 5.
Dermal and subcutaneous growths Types of neoplasia Soft tissue tumor. Edit article Share article View revision history. Vogl TJ, Bisdas S. Granulosa cell tumour Sertoli cell tumour Sex cord tumour with annular tubules.
For a general discussion on the pathology of these tumours please refer to the generic article pertaining to paragangliomas.
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Although most cervical paragangliomas e. There is air seen between the mass and the wall of the jugular fossa. Articles Cases Courses Quiz. Multiple tumors are less timpainco to be painful. Glomus jugulare or tympanicum?
Sertoli-Leydig cell tumour Luteoma. The exact incidence of glomus tumors is unknown. InLamba G et al.
Malignant glomus tumors, or glomangiosarcomasare extremely rare and usually represent a locally infiltrative timpainco. Glomus tumors are modified smooth muscle cells that control the thermoregulatory function of dermal glomus bodies. The probable misdiagnosis of many of these lesions as hemangiomas or venous malformations also makes an accurate assessment of incidence difficult.
Armed Forces Institute of Pathology.