Résumé
Resumen El plasmocitoma extramedular es una neoplasia de células plasmáticas poco frecuente, que se ubica en 80% a 90% de los casos en la cabeza o cuello. Esta neoplasia representa menos del 1% de toda la patología maligna de cabeza y cuello. Dada la poca frecuencia de la patología y la escasez de casos publicados, esta entidad presenta una gran dificultad clínica y terapéutica. El diagnóstico se basa en el análisis histológico con inmunohistoquímica de la muestra obtenida, y el tratamiento varía según la ubicación, donde se puede realizar radioterapia o cirugía. En este artículo presentamos el caso de una paciente de 56 años, con antecedentes de otorrea de larga data en oído derecho, al examen físico presentaba un tumor que obstruía todo el conducto auditivo externo. Se realizó exéresis tumoral y la biopsia evidenció un plasmocitoma.
Abstract Extramedullary plasmacytoma is a rare plasma cell neoplasm, affecting 80% to 90% of the head or neck. This neoplasm represents less than 1% of all malignant head and neck pathology. Given the infrequency of the pathology and the scarcity of published cases, this entity presents great clinical and therapeutic difficulty. Diagnosis is based on histology and immunohistochemistry and treatment varies depending on the location, where radiation therapy or surgery can be performed. In this article, we present the case of a 56-year-old patient with a history of long-standing otorrhea in the right ear. Physical examination presented a tumor that obstructed the entire external auditory canal. Tumor excision was performed, and the biopsy revealed a plasmacytoma.
Sujets)
Humains , Femelle , Adulte d'âge moyen , Plasmocytome/chirurgie , Plasmocytome/anatomopathologie , Plasmocytome/imagerie diagnostique , Tumeurs de l'oreille/chirurgie , Tumeurs de l'oreille/anatomopathologie , Tumeurs de l'oreille/imagerie diagnostique , Plasmocytes , Spectroscopie par résonance magnétique , Tomodensitométrie , Diagnostic différentiel , Oreille , Conduit auditif externeRésumé
Temporal bone involvement in Langerhans Cell Histiocytosis (LCH) is the second most common site of involvement in the head and neck area, with the mastoid and squamous portion of the bone as the most frequent site where LCH manifests. Since there are not many cases reported in the literature, it is possible to state that primary manifestation of histiocytosis affecting the inner ear structures is uncommon. This article reports the case of a patient with involvement of the petrous apex of the temporal bone that was referred to the Fundación Hospital de la Misericordia, and carries out a literature review in order to discuss the manifestation, treatment and outcome of this disease.
El compromiso del hueso temporal en la histiocitosis de células de Langerhans (HLC) es el segundo en frecuencia en el área de cabeza y cuello, siendo los sitios de mayor presentación la porción mastoidea y escamosa del hueso. La presentación primaria de la histiocitosis que afecta las estructuras del oído interno es poco frecuente, pues no hay muchos casos reportados en la literatura. En este artículo, se presenta un reporte de caso de compromiso del ápex petroso del temporal en una paciente remitida a la Fundación Hospital de La Misericordia y se realiza una revisión de la literatura para socializar la presentación de la enfermedad, su tratamiento y desenlace.
Sujets)
Humains , Tumeurs de l'oreille , Os temporal , Histiocytose , Cellules de LangerhansRésumé
Middle ear adenoma can be a rare cause of a middle ear mass. These benign tumors can have epithelial and/or neuroendocrine differentiation. In 1976, Hyams was the first to describe a series of these tumors. It is still thought that these tumors are indistinguishable in composition from each other. We report a case of middle ear adenoma, the clinical and pathologic findings of which illustrate the biological behavior of the middle ear. A 17-year-old male presented with a history of recurrent, bloody otorrhea and high-pitched tinnitus. We diagnosed him with congenital cholesteatoma and performed surgery to remove the entire tumor as well as the incus. However, on postoperative pathology examination, we finally diagnosed the tumor as middle-ear adenoma with neuroendocrine differentiation. In the two years following surgery, the patient's adenoma has not recurred, although long-term observation will be required.