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Vol. 60. Issue 5.
Pages 346-351 (September - October 2009)
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Vol. 60. Issue 5.
Pages 346-351 (September - October 2009)
Radiological diagnostic of the non-pathological conditions of the petrous apex
Diagnóstico radiológico de las condiciones no patológicas del ápex petroso
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José Ángel González-Garcíaa,
Corresponding author
jagonzalez@onkologikoa.org

Corresponding author.
, Almudena Trinidadb, José María Verdaguerc, José Ramón García-Berrocalb, Rafael Ramírez-Camachob
a Servicio de Otorrinolaringología, Instituto Oncológico Kutxa-Onkologikoa, San Sebastián, Guipúzcoa, Spain
b Grupo de Investigación Otológica, Servicio de Otorrinolaringología, Hospital Universitario Puerta de Hierro Majadahonda, Majadahonda, Madrid, Spain
c Servicio de Otorrinolaringología, Hospital de El Escorial, El Escorial, Madrid, Spain
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Abstract

Many patients with otological symptoms are remitted to the otolaryngology outpatient clinics every day. These patients commonly undergo imaging studies, generally magnetic resonance imaging (MRI). In some cases, a positive unilateral result is found in the form of a potentially pathological signal that can be observed in the petrous apex region. We present the cases of 6 patients (aged between 26 and 62 years) with asymmetric bone marrow distribution or trapped mucous fluid secretions in the petrous apex, collected over a 6-year period. Diagnosis was made with the use of CT scans and MRI. All of the patients were referred for skull base surgery. In all cases a non-pathologic asymmetry was diagnosed in the petrous apex. Certain non-pathologic conditions of the petrous apex must be treated expectantly without any surgery.

Keywords:
Petrous apex
Bone marrow
Trapped fluid
Incidental findings
Resumen

A menudo se remite a los pacientes con síntomas otológicos a la consulta de otorrinolaringología. En no pocas ocasiones, se realiza a estos pacientes estudios de imagen, habitualmente resonancia magnética. En algunos casos, se evidencia un hallazgo positivo unilateral en forma de señal de posibles características patológicas en el ápex petroso. Presentamos los casos de 6 pacientes (de 26 a 62 años) con médula ósea asimétrica o retención de secreciones mucosas en el ápex petroso a lo largo de 6 años. El diagnóstico se realizó mediante tomografía computarizada y resonancia magnética. Se remitió a todos los pacientes para cirugía basicraneal. En todos los casos, se diagnosticó una asimetría de carácter no patológica en la punta del peñasco. Ciertas condiciones no patológicas de la punta del peñasco deben ser tratadas de forma expectante sin cirugía.

Palabras clave:
Ápex petroso
Médula ósea
Retención mucoide
Hallazgo casual

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