It revealed a
macroadenoma - a benign tumour - had formed around her pituitary gland.
Among 50 cases in the present study, Meningiomas accounted for 18 cases, followed by Astrocytomas accounting for 17 cases and Schwannoma and Tuberculomas with 3 cases each ,2 cases of Pituitary
macroadenoma, 2 cases of Craniopharyngioma, one case of oligoastrocytoma, oligodendroglioma/Subependymoma, secondaries, medulloblastoma each (Table 2).
However, only two of six patients with pituitary
macroadenoma had raised CgA values > 22 IU/L.
Magnetic resonance imaging showed one patient with microadenoma and seven with
macroadenoma [Table 1].
Differential diagnosis includes craniopharyngioma, pituitary
macroadenoma, and germ cell tumor.
La resonancia magnetica (RM) de silla turca con contraste de gadolinio mostro un proceso expansivo intra y supraselar de 3,5 x 2,5 x 2,6 cm, de aspecto levemente hiperintenso aunque heterogeneo en T1, que en T2 presento un area de alta senal de aspecto solidoquistico en la periferia, isointenso y de baja senal que podian corresponder a calcificaciones, y que se reforzaba significativamente con el contraste, con efecto de masa sobre el quiasma optico, ante lo cual se plantearon los diagnosticos de craneofaringioma o
macroadenoma hipofisiario (Figura 1).
However, control MRI study performed three years after initial scanning revealed the presence of pituitary tumor, most consistent with
macroadenoma.
In this article, we present a patient who presented with fever, vomiting and sudden loss of vision and limited outward gaze in the left eye following trauma and who was found to have pituitary
macroadenoma causing compression of the optic chiasma and optic nerve on the left side on cranial and pituitary magnetic resonance imaging.
Investigations confirmed the presence of pituitary
macroadenoma with excessive GH production.
Se solicito una resonancia magnetica de cerebro con medio de contraste en la que se evidencio una masa selar de 16 milimetros de diametro con captacion del medio de contraste y senal heterogenea en su interior (hiperintensa en T1 e hipointensa en T2), correspondiente a un
macroadenoma hipofisiario con sangrado subagudo (Figuras 2 y 3).
El caso corresponde a una mujer de 36 anos de edad con antecedente de
macroadenoma hipofisario productor de hormona de crecimiento con acromegalia secundaria, que ha requerido multiples intervenciones quirurgicas, la ultima de ellas realizada cuatro anos atras, con posterior presencia de rinoliquia, la cual se encontraba en estudio.
Key Words: Hyperprolactinaemia, Prolactin, MR I screening, Microadenoma,
Macroadenoma.
