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Computed Tomography and Magnetic Resonance Imaging Findings of Nasal Cavity Hemangiomas According to Histological Type
Korean Journal of Radiology ; : 566-574, 2015.
Artículo en Inglés | WPRIM | ID: wpr-83669
ABSTRACT

OBJECTIVE:

To compare computed tomography (CT) and magnetic resonance imaging (MRI) findings between two histological types of nasal hemangiomas (cavernous hemangioma and capillary or lobular capillary hemangioma). MATERIALS AND

METHODS:

CT (n = 20; six pre-contrast; 20 post-enhancement) and MRI (n = 7) images from 23 patients (16 men and seven women; mean age, 43 years; range, 13-73 years) with a pathologically diagnosed nasal cavity hemangioma (17 capillary and lobular capillary hemangiomas and six cavernous hemangiomas) were reviewed, focusing on lesion location, size, origin, contour, enhancement pattern, attenuation or signal intensity (SI), and bony changes.

RESULTS:

The 17 capillary and lobular hemangiomas averaged 13 mm (range, 4-37 mm) in size, and most (n = 13) were round. Fourteen capillary hemangiomas had marked or moderate early phase enhancement on CT, which dissipated during the delayed phase. Four capillary hemangiomas on MRI showed marked enhancement. Bony changes were usually not seen on CT or MRI (seen on five cases, 29.4%). Half of the lesions (2/4) had low SI on T1-weighted MRI images and heterogeneously high SI with signal voids on T2-weighted images. The six cavernous hemangiomas were larger than the capillary type (mean, 20.5 mm; range, 10-39 mm) and most had lobulating contours (n = 4), with characteristic enhancement patterns (three centripetal and three multifocal nodular), bony remodeling (n = 4, 66.7%), and mild to moderate heterogeneous enhancement during the early and delayed phases.

CONCLUSION:

CT and MRI findings are different between the two histological types of nasal hemangiomas, particularly in the enhancement pattern and size, which can assist in preoperative diagnosis and planning of surgical tumor excision.
Asunto(s)

Texto completo: Disponible Índice: WPRIM (Pacífico Occidental) Asunto principal: Senos Paranasales / Imagen por Resonancia Magnética / Tomografía Computarizada por Rayos X / Estudios Retrospectivos / Hemangioma Capilar / Hemangioma Cavernoso / Cavidad Nasal Tipo de estudio: Estudio diagnóstico / Estudio observacional Límite: Adolescente / Adulto / Anciano / Femenino / Humanos / Masculino Idioma: Inglés Revista: Korean Journal of Radiology Año: 2015 Tipo del documento: Artículo

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Texto completo: Disponible Índice: WPRIM (Pacífico Occidental) Asunto principal: Senos Paranasales / Imagen por Resonancia Magnética / Tomografía Computarizada por Rayos X / Estudios Retrospectivos / Hemangioma Capilar / Hemangioma Cavernoso / Cavidad Nasal Tipo de estudio: Estudio diagnóstico / Estudio observacional Límite: Adolescente / Adulto / Anciano / Femenino / Humanos / Masculino Idioma: Inglés Revista: Korean Journal of Radiology Año: 2015 Tipo del documento: Artículo