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1.
Diagn Interv Radiol ; 15(4): 239-41, 2009 Dec.
Article in English | MEDLINE | ID: mdl-19862674

ABSTRACT

Labyrinthitis ossificans is fibrosis or ossification of the membranous labyrinth. Tympanogenic, meningogenic, and hematogenous etiologies are more common than trauma in the development of labyrinthitis ossificans. We present a case complaining of right-sided hearing loss and symptoms of otitis media and positional vertigo resulting from perilymphatic fistulization. Imaging revealed labyrinthitis ossificans secondary to temporal bone fracture crossing through the otic capsule.


Subject(s)
Labyrinthitis/diagnosis , Magnetic Resonance Imaging/methods , Ossification, Heterotopic/diagnosis , Adult , Atrophy , Cochlea/pathology , Female , Humans , Labyrinthitis/diagnostic imaging , Ossification, Heterotopic/diagnostic imaging , Temporal Bone/diagnostic imaging , Tomography, X-Ray Computed/methods , Vertigo/etiology , Vestibular Nerve/pathology
2.
Eur J Radiol ; 67(2): 300-303, 2008 Aug.
Article in English | MEDLINE | ID: mdl-17703907

ABSTRACT

PURPOSE: To evaluate the incidence and anatomic features of the rare variant of the pulmonary veins named "right top pulmonary vein" as depicted with 64 section multidetector computed tomography (MDCT). MATERIALS AND METHODS: MDCT of 610 patients obtained over 12 months period for diagnosis of suspected thoracic or cardiac pathology were routinely reviewed in transverse and 3D images. The frequency of right top pulmonary vein (RTPV) was determined and anatomic features were also documented. RESULTS: Right top pulmonary vein (RTPV) is a supernumerary vein arising from the roof of the right part of the left atrium separately from the orifice of the right superior pulmonary vein. It crosses behind the intermediate bronchus and drains mainly posterior segment of the right upper lobe but also receives few subsegmental branches of superior segment of the right lower lobe. It was detected in 2.2% of patients (14/610). The mean diameter of RTPV was 5.1 mm. CONCLUSION: The RTPV is a rare venous drainage variation of pulmonary veins. It is important to be aware of this anatomic pattern for avoiding misinterpretation of pulmonary venographic findings, inadvertent ablation of pulmonary vein and perioperative bleeding during video assisted thorocoscopic lobectomy.


Subject(s)
Pulmonary Veins/abnormalities , Pulmonary Veins/diagnostic imaging , Tomography, X-Ray Computed/methods , Adolescent , Adult , Aged , Aged, 80 and over , Child , Female , Humans , Image Interpretation, Computer-Assisted , Imaging, Three-Dimensional , Male , Middle Aged
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