Imaging characteristics of ameloblastomas and diagnostic value of computed tomography and magnetic resonance imaging in a series of 26 patients

Apajalahti, Satu; Kelppe, Jetta; Kontio, Risto; Hagström, Jaana

doi:10.1016/j.oooo.2015.05.002

Cited by 40 publications

(53 citation statements)

References 19 publications

(28 reference statements)

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“…En la actualidad la tomografía computariza de haz cónico se ha convertido en una herramienta de gran ayuda inclusive en la evaluación de patologías; sin embargo, a pesar que nos proporciona imágenes tridimensionales al igual que la THM, no nos permite evaluar el contenido de la lesión, debido a su pobre contraste para tejidos blandos (7,8), por lo tanto su aporte para el diagnóstico de lesiones tumorales es limitado; pero sí puede ser de gran utilidad para el seguimiento y evaluación de los tejidos óseo (7). En conclusión, la experiencia y la evidencia de diferentes publicaciones nos demuestran que sin la información que nos brinda el uso de medios de contraste, la interpretación diagnóstica es la mayoría de veces menos exacta (7,11,14,20).…”

Section: Discussionunclassified

“…En conclusión, la experiencia y la evidencia de diferentes publicaciones nos demuestran que sin la información que nos brinda el uso de medios de contraste, la interpretación diagnóstica es la mayoría de veces menos exacta (7,11,14,20).…”

Section: Discussionunclassified

“…Radiográfi camente estas lesiones se presentan como una imagen radiolúcida uni o multilocular lo que nos da la apariencia de pompas de jabón o panal de abejas, con márgenes festoneados y produce desplazamiento de las corticales y expansión de las tablas óseas; además reabsorción y migración de las piezas dentarias adyacentes (1,7). Por otro lado, la THM nos brinda información adicional acerca del componente interno de la lesión, esto adicionado a la administración de contraste nos permite diferenciar a los ameloblastomas sólidos de otras lesiones, ya que podremos evidenciar el componente sólido y quístico que histopatológicamente están presentes en ese tipo de lesión (7,8).…”

Section: Introductionunclassified

See 2 more Smart Citations

El uso del contraste para el diagnóstico de ameloblastoma: a propósito de un caso.

Cueva¹,

Calderón²,

Trevejo-Bocanegra³

2017

Rev Estomatol Herediana.

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Los ameloblastomas son los tumores odontogénicos benignos más comunes, sin tomar en cuenta a los odontomas; su comportamiento es localmente invasivo, destructivo con alta tasa de recurrencia, no exhiben predilección en cuanto al sexo y presentan picos de incidencia dentro de la cuarta y quinta década de vida; sin embargo los ameloblastomas uniquísticos, en su mayoría son diagnosticados durante la segunda década de vida. El presente reporte muestra las características imagenológicas del ameloblastoma, haciendo uso de diferentes técnicas de adquisición de imágenes; entre ellas se resalta el uso de la tomografía helicoidal multicorte (THM) con administración de contraste endovenoso, la cual nos permite obtener datos adicionales para la caracterización de la estructura interna de la lesión, diferenciándola así de otras patologías.PALABRAS CLAVE: Ameloblastoma, tomografía computarizada multidetector, medios de contraste. SUMMARYAmeloblastomas are the most common benign odontogenic tumors, without regard to odontomas; Its behavior is locally invasive, destructive with high rate of recurrence. They do not have sex predilection and theirs peak of incidence is in the fourth and fi fth decades of life; however, uniquistic ameloblastomas are mostly diagnosed during the second decade of life. The present report shows the imaging characteristics of ameloblastoma, using different techniques of image acquisition; among them the use of Helicoidal Multidetector Computed Tomography (HMCT) with intravenous contrast administration, which allows us to obtain additional data for the characterization of the internal structure of the lesion, thus differentiating it from other pathologies.

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Section: Discussionunclassified

Section: Introductionunclassified

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El uso del contraste para el diagnóstico de ameloblastoma: a propósito de un caso.

Cueva¹,

Calderón²,

Trevejo-Bocanegra³

2017

Rev Estomatol Herediana.

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“…3D imaging is considered standard today (Figure 1). Various studies have shown advantages for computed tomography, magnetic resonance tomography, and conebeam computed tomography in comparison with panoramic radiographs (Apajalahti, Kelppe, Kontio, & Hagstrom, 2015).…”

Section: Radiological Presentationmentioning

confidence: 99%

Ameloblastoma—Clinical, radiological, and therapeutic findings

Kreppel

Zöller

2018

Oral Diseases

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Ameloblastoma are the most common odontogenic tumor. As they usually do not form metastasis, they are considered as benign tumors with a locally invasive growth pattern and destruction of the jaws and the surrounding tissue (Oral Diseases, 23, 2017, 199). This article focuses on clinical, radiological, and therapeutic findings, which may influence diagnosis and treatment of ameloblastoma in the future.

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“…Such findings can mislead imaging specialists attempting to differentiate this type of lesion from other types of cystic lesion such as dentigerous cyst (DC) and orthokeratinized odontogenic cyst (OKOC)/ odontogenic keratocyst (OKC). Computed tomography is effective, however, in the quantitative estimation of the internal properties of lesions, and can thus be helpful in diagnosing UA 4) . Magnetic resonance imaging has further potential to demonstrate the internal structure of a unilocular ameloblastoma due to the imaging characteristics of superior softtissue contrast and multiplanar facilities 5,12,13) .…”

Section: Introductionmentioning

confidence: 99%

Luminal, Intramural Unicystic Ameloblastoma with Marked Fluid-Fluid Level: Validity of CT and MRI Findings

Wakoh

Matsuzaka

Imoto

et al. 2020

Bull. Tokyo Dent. Coll.

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We report herein a case of a luminal and intramural unicystic ameloblastoma (UA) with a marked fluid-fluid level. The validity of imaging findings in diagnosing UA in the present case is discussed in reference to the literature. The patient was a 50-year-old woman who presented with swelling of the gingiva in the region of the left mandibular third molar and numbness in the lower lip. Computed tomography (CT) and magnetic resonance imaging (MRI) revealed a large mass lesion with a unilocular appearance and a biphasic aspect, suggesting liquid content. Contrast-enhanced MRI (CE-MRI) and dynamic contrast-enhanced MRI (DCE-MRI) demonstrated that the biphasic aspect indicated a fluid-fluid level with no blood pooling/flow; it also revealed a thick rim-enhanced margin with mural protrusion. Postoperatively, the lesion was histopathologically diagnosed as a luminal and intramural UA. In conclusion, extensive imaging including both standard CT and MRI together with CE-MRI and DCE-MRI allowed mural protrusions or nodules on a thick cystic wall and liquid content to be correctly identified. This suggests that such imaging can play an important role in diagnosing a UA, even though the results were at first misleading due to the marked fluid-fluid level.

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Imaging characteristics of ameloblastomas and diagnostic value of computed tomography and magnetic resonance imaging in a series of 26 patients

Cited by 40 publications

References 19 publications

El uso del contraste para el diagnóstico de ameloblastoma: a propósito de un caso.

El uso del contraste para el diagnóstico de ameloblastoma: a propósito de un caso.

Ameloblastoma—Clinical, radiological, and therapeutic findings

Luminal, Intramural Unicystic Ameloblastoma with Marked Fluid-Fluid Level: Validity of CT and MRI Findings

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