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Vol. 54. Issue 5.
Pages 275-278 (May 2007)
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Vol. 54. Issue 5.
Pages 275-278 (May 2007)
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Prolactinoma ectópico del seno cavernoso. Revisión de la literatura a propósito de un caso
Ectopic prolactinoma in the cavernous sinus. Case report and review of the literature
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Natalia Pérez Ferre
Corresponding author
nataliaferre79@hotmail.com

Correspondencia: Dra. N. Pérez Ferre. Servicio de Endocrinología y Nutrición. Hospital Clínico San Carlos. Profesor Martín Lagos, s/n. 28040 Madrid. España.
, Nuria García De La Torre, Edurne Lecumberri Pascual
Servicio de Endocrinología y Nutrición. Hospital Clínico San Carlos. Madrid. España
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El adenoma hipofisario ectópico o extraselar es una entidad muy infrecuente que plantea dificultades diagnósticas y terapéuticas por su especial localización anatómica. Presentamos el caso de una paciente de 44 años estudiada por amenorrea e hiperprolactinemia. No refería galactorrea, cefalea ni alteraciones en la visión. En la resonancia magnética se identificó una lesión de 10,5×5 mm en el seno cavernoso izquierdo con glándula hipofisaria de características normales. Inicialmente se adoptó una actitud expectante con seguimiento radiológico, y 8 meses después se observó crecimiento de la lesión con persistencia de la hiperprolactinemia. Se inició entonces tratamiento con agonistas dopaminérgicos (cabergolina), con una evolución clínica, hormonal y radiológica favorable. La lesión fue interpretada como un prolactinoma ectópico en el seno cavernoso con buena respuesta al tratamiento médico.

A propósito de este caso, realizamos una revisión de la literatura sobre el adenoma hipofisario ectópico, y encontramos que su localización en seno cavernoso es excepcional.

Palabras clave:
Prolacctinoma ectópico
Adenoma hipofisario extraselar
Adenoma paraselar
Seno cavernoso
Adenoma extrapituitario

Ectopic pituitary adenomas are a very rare entity. Diagnosis and treatment are difficult in many of these tumors due to their uncommon anatomical location. We report the case of a 44-year-old woman who presented with secondary amenorrhea and hyperprolactinemia. Galactorrhea, headaches and vision impairment were absent. Magnetic resonance imaging showed a 10.5×5mm lesion in the left cavernous sinus with a normal intrasellar anterior pituitary gland.

Initially, an expectant attitude with close radiological follow-up was adopted. Therapy with dopaminergic agonists (cabergoline) was initiated 8 months later when radiological growth and persistent hyperprolactinemia were observed. Clinical, biochemical and radiological outcomes were favorable. The lesion was considered to be an ectopic prolactinoma in the cavernous sinus with good response to medical treatment.

Location in the cavernous sinus is extremely uncommon. Therefore, we report this case and review additional cases of ectopic adenomas from the literature.

Key words:
Ectopic prolactinoma
Extrasellar pituitary adenoma
Parasellar adenoma
Cavernous sinus
Extrapituitary adenoma
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Copyright © 2007. Sociedad Española de Endocrinología y Nutrición
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