Casos clínicos-Cáncer paratiroideo como causa de fractura y osteoporosis secundaria en el adulto mayor

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Revista Colombiana de Endocrinología, Diabetes y Metabolismo

Casos clínicos-Cáncer paratiroideo como causa de fractura y osteoporosis secundaria en el adulto mayor

J. Andrea Huertas-Quintero, María Camila Romero, Juan Antonio Trejos, Luis Miguel Maldonado
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Resumen

Introducción. El carcinoma paratiroideo es infrecuente y más en población geriátrica, afecta el metabolismo óseo y es enmascarado por patologías comunes que causan fracturas de bajo impacto.

Objetivo. Ilustrar el cáncer paratiroideo dentro del estudio de las fracturas patológicas y la osteoporosis secundaria, para favorecer el diagnóstico temprano en el adulto mayor.

Presentación del caso. Mujer de 71 años con osteoporosis presentó fractura de fémur mientras caminaba. Se evidenció síndrome constitucional, anemia, nefrolitiasis y lesiones osteolíticas; se consideró metástasis óseas versus tumores pardos. Se descartaron neoplasias ginecológicas frecuentes y tumores de células plasmáticas. Estudios tomográficos mostraron nódulo pulmonar y nódulo tiroideo (4 cm), el perfil fosfocálcico indicó hiperparatiroidismo primario, gammagrafía paratiroidea Tc99 MIBI fue negativa. Previa dosis de zoledronato, se realizó exploración de paratiroides, hemitiroidectomía izquierda en bloque y paratiroidectomía superior derecha. Histología e inmunohistoquímica de masa cervical reportó carcinoma de paratiroides. Seguimiento posquirúrgico indicó paratohormona y calcio elevado, e imágenes con metástasis pulmonares.

Discusión y conclusión. Las fracturas por osteoporosis son frecuentes, pero ante fracturas atípicas y/o puntaje Z?-2, se deben considerar causas tumorales, infecciosas y evaluación temprana del metabolismo fosfocálcico. El cáncer de paratiroides es más frecuente alrededor de los 50 años, pero puede presentarse a cualquier edad; en adultos mayores comparte características clínicas con entidades prevalentes como osteoporosis posmenopáusica, nefrolitiasis y nódulo tiroideo. El cáncer paratiroideo tiene un espectro clínico amplio y debe ser una posibilidad diagnóstica ante fracturas patológicas o hiperparatiroidismo grave, incluso en ausencia de lesión paratiroidea en un Tc99 MIBI o en presencia de patología tiroidea. El abordaje quirúrgico temprano es la mejor opción terapéutica, y el diagnóstico histológico debe apoyarse en inmunohistoquímica por falta de características citológicas específicas del cáncer paratiroideo.

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Palabras Clave

neoplasias de las paratiroides
fracturas óseas
osteoporosis posmenopáusica
fracturas de cadera
nódulo tiroideo
hiperparatiroidismo primario

Para citar

Huertas-Quintero, J. A. ., Camila Romero, M., Trejos, J. A. ., & Maldonado, L. M. . (2021). Cáncer paratiroideo como causa de fractura y osteoporosis secundaria en el adulto mayor. Revista Colombiana De Endocrinología, Diabetes &Amp; Metabolismo8(1). https://doi.org/10.53853/encr.8.1.693

Revista Colombiana de Endocrinología Diabetes y Metabolismo

 Volumen 8 número 1