Elastography in musculoskeletal imaging: A tool or a toy?

Elastography is a novel imaging technique based on ultrasound that evaluates the deformability of tissues to help characterize lesions. It is widely used and has been validated in many tissues (e.g., liver, breast, thyroid). It is also used in the study of musculoskeletal disease. Although the use of elastography in musculoskeletal radiology is limited by the variability and heterogeneity of tissues, it is a very promising technique. In this article, we aim to review the usefulness, possible indications, limitations, and future perspectives of this technique in musculoskeletal radiology.

Elastografía en musculoesquelético. ¿Herramienta o juguete? / Elastography in musculoskeletal imaging: a tool or a toy?

La elastografía es una novedosa técnica de imagen basada en los ultrasonidos que valora la deformabilidad de los tejidos para ayudar a caracterizar las lesiones. Su uso está muy extendido y ha sido validada en muchos tejidos (hígado, mama, tiroides, etc.). También se aplica en el estudio de la patología musculoesquelética, aunque con limitaciones debido a la variabilidad y heterogeneidad de los tejidos; no obstante, es una técnica muy prometedora. En este artículo trataremos de revisar su utilidad, posibles indicaciones, limitaciones y perspectivas de futuro.(AU)

Elastography is a novel imaging technique based on ultrasound that evaluates the deformability of tissues to help characterize lesions. It is widely used and has been validated in many tissues (e.g., liver, breast, thyroid). It is also used in the study of musculoskeletal disease. Although the use of elastography in musculoskeletal radiology is limited by the variability and heterogeneity of tissues, it is a very promising technique. In this article, we aim to review the usefulness, possible indications, limitations, and future perspectives of this technique in musculoskeletal radiology.(AU)

Síndrome de Kearns-Sayre / Kearns-Sayre syndrome

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Lesión quística congénita en la pelvis: un caso de útero didelfo con doble vagina, hematocolpos y agenesia renal ipsilateral: papel de la resonancia magnética / The role of MRI in congenital cystic lesions in the pelvis: A case of uterus didelphys with double vagina, hematocolpos, and ipsilateral renal agenesis

Se presenta un caso de útero didelfo con hemivagina ciega y agenesia renal ipsilateral. Es una anomalía infrecuente del desarrollo de los conductos de Müller. El defecto en uno de los conductos de Wolf condiciona un fallo en la inducción de la formación renal y en la fusión de los conductos de Müller. La resonancia magnética desempeña un papel decisivo en el diagnóstico y caracterización de la malformación (AU)

We report a case of uterus didelphys with blind hemivagina and ipsilateral renal agenesis. This is an uncommon anomaly of the development of the Mullerian ducts in which a defect in one of the Wolffian ducts leads to failed induction in kidney formation and in the fusion of the Mullerian ducts. MRI plays a decisive role in the diagnosis and characterization of the malformation (AU)

[The role of MRI in congenital cystic lesions in the pelvis: a case of uterus didelphys with double vagina, hematocolpos, and ipsilateral renal agenesis.]. / Lesión quística congénita en la pelvis: un caso de útero didelfo con doble vagina, hematocolpos y agenesia renal ipsilateral: papel de la resonancia magnética.

We report a case of uterus didelphys with blind hemivagina and ipsilateral renal agenesis. This is an uncommon anomaly of the development of the Mullerian ducts in which a defect in one of the Wolffian ducts leads to failed induction in kidney formation and in the fusion of the Mullerian ducts. MRI plays a decisive role in the diagnosis and characterization of the malformation.

Hemangioendotelioma hepático infantil / Infantile hemangioendothelioma of the liver

El hemangionedotelioma hepático infantil es un tumor benigno compuesto de canales vasculares anastomosados. Lo más frecuente es que se produzcan síntomas en los 6 primeros meses de vida, que en ocasiones pueden ser graves, sobre todo en casos de fallo cardiaco congestivo o coagulopatía. En muchos casos se puede obtener con técnicas de imagen (ultrasonidos, tomografía computarizada y resonancia magnética) suficiente información para el diagnóstico y planificación del tratamiento adecuado. Presentamos el caso de un neonato con fallo cardiaco congestivo y hepatomegalia debido a hemangioendotelioma hepático. Se revisa la presentación, diagnóstico y tratamiento del mismo así como los principales diagnósticos diferenciales a tener en cuenta ante una neoplasia hepática neonatal (AU)

Infantile hemangioendothelioma of the liver is a benign tumor composed of anastomosed vascular channels. Usually they cause symptoms during the first 6 months of life which occasionally may be serious, above all in cases of congestive heart failure or coagulopathy. In many cases it may be provided by imaging techniques (ultrasound, computed tomography and magnetic resonance imaging) sufficient information to diagnose and to plan for adequate treatment. We present a case of a newborn with congestive heart failure and hepatomegaly due to hemangioendothelioma of the liver. We review the presentation, diagnostic and treatment of it, as soon as the principal differential diagnoses to take into account in the presence of aneounatal hepatic neoplasm (AU)

[Optic nerve hypoplasia associated to ectopic neurohypophysis]. / Hipoplasia del nervio optico asociada a neurohipófisis ectópica.

Hypoplasia of the optic nerve is a rare congenital anomaly of unknown etiology that is a frequent cause of blindness in children. It can present in isolation or associated to other malformations of the central nervous system. Magnetic resonance is the technique of choice for the study of this condition; it enables both the hypoplasia of the nerve and the possible associated malformations to be demonstrated. We present a case of optic nerve hypoplasia associated to ectopic neurohypophysis.