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Inicio Revista Española de Medicina Nuclear e Imagen Molecular (English Edition) The usefulness of the scan with 67Ga-citrate in multicentric reticulohistiocytos...
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Vol. 32. Issue 4.
Pages 253-256 (July - August 2013)
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Vol. 32. Issue 4.
Pages 253-256 (July - August 2013)
Clinical note
The usefulness of the scan with 67Ga-citrate in multicentric reticulohistiocytosis
Utilidad de la gammagrafía con 67Ga-citrato en la reticulohistiocitosis multicéntrica
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D. Ramírez Ocaña
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d_ramirez82@hotmail.com

Corresponding author.
, M.J. Cañada Rodríguez, J. Ruiz García, C. Puentes Zarzuela
Unidad de Gestión Clínica de Medicina Nuclear, Hospital Universitario Carlos Haya, Málaga, Spain
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Abstract

Multicentric reticulohistiocytosis is a rare systemic disease of unknown etiology. It is characterized by erosive arthritis and skin lesions. Diagnosis and treatment should be performed early to avoid sequelaes.

We report the case of a 67-year-old man diagnosed with multicentric reticulohistiocytosis and left hip arthroplasty. The patient consulted for local pain in his left leg. Final diagnosis was left prosthetic dislocation. During admission, a bone scintigraphy with 99mTc-HDP and scintigraphy with 67Ga-citrate was performed, showing no evidence of inflammatory activity in pelvis that contraindicating surgery. Besides it showed bilateral uptake in soft tissue of large joints compatible with persistent inflammatory activity secondary to multicentric reticulohistiocytosis. In this case scintigraphy with 67Ga-citrate, is a useful tool to assess the recovery and extent of disease.

Keywords:
Histiocytosis
Non-Langerhans-cell histiocytosis
Scintigraphy
Gallium-67
Resumen

La reticulohistiocitosis multicéntrica es una enfermedad sistémica rara de etiología no conocida. Se caracteriza por provocar artropatía erosiva así como lesiones cutáneas. Su diagnóstico y tratamiento deben realizarse precozmente para evitar secuelas.

Se presenta el caso de un varón de 67 años, con antecedentes de reticulohistiocitosis multicéntrica y artroplastia en cadera izquierda, que acude por dolor en miembro inferior izquierdo, siendo diagnosticado de luxación de prótesis de cadera izquierda. Durante el ingreso, se realiza gammagrafía ósea con 99mTc-HDP y gammagrafía con 67Ga-citrato donde se evidencia ausencia de actividad inflamatoria ósea en pelvis que contraindique la cirugía. Además se observa captación bilateral en partes blandas de grandes articulaciones compatible con persistencia de actividad inflamatoria secundaria a reticulohistiocitosis multicéntrica.

En este caso la gammagrafía con 67Ga-citrato, se presenta como una herramienta útil para valorar la reactivación y extensión de la enfermedad.

Palabras clave:
Histiocitosis
Histicitosis de células no Langerhans
Gammagrafía
Galio-67

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