[Cholesterol granuloma in paranasal sinus. An unfrequent pseudotumor in maxillary sinuses]. / Granuloma de colesterol en senos paranasales. Un pseudotumor infrequente.

The cholesterol granuloma is well known in the middle ear, in the mastoid antrum and the air cells of temporal bone, mostly related to a chronic infectious process. There are other localizations such as the pleura, lung, pericardium, kidneys, arterial wall, nerves, brain, testicles, lymphatic ganglion and in the paranasals sinuses. Its localization in the mediofacial area is very unfrequent, having only been described 44 cases up to the year 2002. We present a 42 year-old patient, who required surgical treatment because of a increase in the volume of area her left facial of one month's old. It resulted to be secundary to an expansion of the maxilar sinus, such as seen on the computerized tomography carried out on the patient. The diagnosis was cholesterol granuloma, performed, through the anatomo-pathology study. We review the litterature on this subject and analyse the possible etiologic cause of this lesion, its clinic, diagnostic methodology and treatment.

Granulom de colesterol en senos paranasales. Un pseudotumor infrequente / Colesterol granuloma in paranasal sinus. An unfrequent pseudotumor in maxillary sinuses

El granuloma de colesterol es bien conocido en el oído medio en la región del antro y en celdas mastoideas, la mayoría de las veces relacionado con un proceso infeccioso crónico. Existen otras localizaciones en las que se ha descrito como pleura, pulmón, pericardio, riñón, pared arterial, nervios, cerebro, testículos, ganglios linfáticos y senos paranasales. Su localización en el piso medio facial es muy infrecuente habiéndose descrito en la literatura solo 44 casos hasta el año 2002. Presentamos una enferma de 42 años que requirió tratamiento quirúrgico por presentar aumento de volumen facial izquierdo de un mes de evolución, que resultó ser secundario a una lesión expansiva del seno maxilar, como se pudo apreciar en la tomografía computarizada que se realizó. El diagnóstico fue granuloma de colesterol, a través de la anatomía patológica. Revisamos la literatura que se ha publicado sobre este tema, analizamos la posible causa etiológica de esta lesión, su cuadro clínico, metodología diagnóstica y tratamiento

The cholesterol granuloma is well known in the middle ear, in the mastoid antrum and the air cells of temporal bone, mostly related to a chronic infectious process. There are other localizations such as the pleura, lung, pericardium, kidneys, arterial wall, nerves, brain, testicles, lymphatic ganglion and in the paranasals sinuses. Its localization in the mediofacial area is very unfrequent, having only been described 44 cases up to the year 2002. We present a 42 year-old patient, who required surgical treatment because of a increase in the volume of area her left facial of one month's old. It resulted to be secundary to an expansion of the maxilar sinus, such as seen on the computerized tomography carried out on the patient. The diagnosis was cholesterol granuloma, performed, through the anatomo-pathology study. We review the litterature on this subject and analyse the possible etiologic cause of this lesion, its clinic, diagnostic methodology and treatment