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Aracnodactilia

Dolicostenomelia; Dedos de araña; Acromacria

Definición

Es una afección por la cual los dedos son largos, delgados y curvados. Lucen como las patas de una araña (arácnido).

Consideraciones

Los dedos largos y delgados pueden ser normales y no estar relacionados con ningún problema de salud. Sin embargo, en algunos casos, los "dedos de araña" pueden ser una señal de un trastorno subyacente.

Causas

Las causas pueden incluir:

Homocistinuria
Síndrome de Marfan
Otros trastornos genéticos raros

Cuándo contactar a un profesional médico

Algunos bebés nacen con aracnodactilia. Esta se puede volver más notoria con el tiempo. Hable con su proveedor de atención médica si su hijo tiene dedos largos y delgados, y le preocupa que pueda existir una afección subyacente.

Lo que se puede esperar en el consultorio médico

El proveedor llevará a cabo un examen físico. Este le hará preguntas acerca de la historia clínica. Estas incluyen:

¿Cuándo notó por primera vez que los dedos habían tomado esta forma?
¿Existen antecedentes familiares de muerte temprana? ¿Existen antecedentes familiares de trastornos hereditarios conocidos?
¿Qué otros síntomas están presentes? ¿Ha notado algún otro aspecto inusual?

Con frecuencia no es necesario realizar exámenes de diagnóstico, a menos que se sospeche la presencia de un trastorno hereditario.

Referencias

Doyle Al, Doyle JJ, Dietz HC. Marfan syndrome. In: Kliegman RM, St. Geme JW, Blum NJ, Shah SS, Tasker RC, Wilson KM, eds. Nelson Textbook of Pediatrics. 21st ed. Philadelphia, PA: Elsevier; 2020:chap 722.

Grahame R, Hakim AJ. Arachnodactyly--a key to diagnosing heritable disorders of connective tissue. Nat Rev Rheumatol. 2013;9(6):358-364. PMID: 23478494 pubmed.ncbi.nlm.nih.gov/23478494/.

Herring JA. Orthopaedic-related syndromes. In: Herring JA, ed. Tachdjian's Pediatric Orthopaedics. 6th ed. Philadelphia, PA: Elsevier; 2022:chap 37.

Programe una cita

Actualizado : 12/31/2023

Versión en inglés revisada por : Mary J. Terrell, MD, IBCLC, Neonatologist, Cape Fear Valley Medical Center, Fayetteville, NC. Review provided by VeriMed Healthcare Network. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.

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