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Vol. 4. Issue 6.
Pages 248-250 (November - December 2008)
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Vol. 4. Issue 6.
Pages 248-250 (November - December 2008)
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Juvenile Dermatomyositis and Extensive Calcinosis. Treatment With Methylprednisolone and Methotrexate
Dermatomiositis juvenil y calcinosis extensa. Tratamiento con metilprednisolona y metotrexato
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Zoilo Morel Ayala
Corresponding author
zoiloma@hotmail.com

Correspondence: Departamento de Reumatología. Hospital Infantil de México Federico Gómez. Dr. Márquez 162. Col. Doctores, Delegación Cuauhtémoc. 06720 México DF. México.
, Rogelio Martínez Ramírez, Samara Mendieta Zerón, Enrique Faugier Fuentes, Rocío Maldonado Velázquez
Departamento de Reumatología, Hospital Infantil de México Federico Gómez, México DF, Mexico
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Abstract

Juvenile dermatomyositis (JDM) is considered a multisystemic disease of uncertain etiology. The clinical manifestation is a non-suppurative inflammation of the striated muscle, gastrointestinal tract, and skin. Dystrophic calcifications are present in 30%–70% of children with JDM.

The clinical case we are presenting is a 4 years old female with diagnosis of JDM in accordance to the Bohan and Peters criteria (very early presentation age) with extensive calcinosis, classified as functional class III, without being able to sit down or flex her knees. She was treated with IV methylprednisolone (MPS) bolus every 14 days and oral methotrexate, with improvement of her clinical condition.

Even though calcinosis is a frequent finding in connective tissue disease and can cause severe disability, there are no treatment protocols at this time. The simultaneous use of IV MPS and oral methotrexate allows for a faster control of the disease, improvement in muscular force, reduction of erythema and regression of the calcinosis without important collateral effects.

Key words:
Dermatomyositis
Calcinosis
Methylprednisolone
Resumen

La dermatomiositis juvenil (DMJ) es una enfermedad multisistémica de etiología incierta, que resulta en una inflamación crónica no supurativa del músculo estriado, la piel y el tracto gastrointestinal. Las calcificaciones distróficas ocurren en un 30–70% de los niños con DMJ. Presentamos el caso de una paciente de 4 años de edad, con diagnóstico de DMJ según criterios de Bohan y Peter, en una edad muy temprana de presentación, con calcinosis extensas que le impedían sentarse, sin flexión de articulación de rodillas, con clase funcional 3. Recibió tratamiento con pulsos intravenosos de metilprednisolona cada 14 días, además de metotrexato vía oral, con mejoría clínica.

A pesar de que la calcinosis es frecuente en enfermedades del tejido conectivo y puede llevar a discapacidad severa, no se han desarrollado protocolos terapéuticos para su manejo. El uso simultáneo de metilprednisolona y metotrexato permite un control más rápido de la enfermedad, con mejoría en la fuerza muscular y el eritema y regresión de las calcinosis, sin efectos colaterales importantes.

Palabras clave:
Dermatomiositis
Calcinosis
Metilprednisolona
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