Histiocytosis X of the Petrous Bone in the Adult: MRI
Overview
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Two cases of histiocytosis X in young adults with involvement of only the petrous bone are reported. In the first symptoms and signs consisted of a seventh nerve palsy of gradual onset over 3 years, and in the second, of pulsatile tinnitus associated with otorrhoea of clear fluid and impaired vestibular function. CT revealed large lytic lesions of the petrous bone. T1-weighted MRI before and after gadolinium confirmed the presence of a mixed tumour of the petrous bone with marked uptake of contrast medium. Spin echo images demonstrated the absence of extradural extension, and the patency of the arterial and venous network, therefore enabling differential diagnosis from extensive glomus jugulare tumours.
Pulsatile Tinnitus: Differential Diagnosis and Radiological Work-Up.
Pegge S, Steens S, Kunst H, Meijer F Curr Radiol Rep. 2017; 5(1):5.
PMID: 28203490 PMC: 5263210. DOI: 10.1007/s40134-017-0199-7.
Munoz A, Ruiz-Contreras J, Jimenez A, Mate I, Calvo M, Villafruela M Eur Radiol. 2009; 19(6):1560-3.
PMID: 19440720 DOI: 10.1007/s00330-008-1130-7.
Weber A, Hug E, Muenter M, Curtin H Skull Base Surg. 1997; 7(4):163-73.
PMID: 17171027 PMC: 1656642. DOI: 10.1055/s-2008-1058592.
Pulsatile tinnitus--a review of 84 patients.
Waldvogel D, Mattle H, Sturzenegger M, Schroth G J Neurol. 1998; 245(3):137-42.
PMID: 9553842 DOI: 10.1007/s004150050193.