Abs R, Parizel P M, Verlooy J, Neetens I, Arnouts P
Department of Endocrinology, University of Antwerp, Wilrijk, Belgium.
J Endocrinol Invest. 1993 Sep;16(8):635-7. doi: 10.1007/BF03347685.
A 56-year-old male patient with panhypopituitarism is presented. Magnetic resonance (MR) examination of the pituitary region revealed a pituitary mass with markedly increased signal intensity on T1-weighted images and low signal intensity on T2-weighted images. At surgery, a large amount of purulent material was removed. At light microscopy, the tissue was demonstrated to be a pituitary abscess occurring in an otherwise normal pituitary gland. The high signal intensity on T1-weighted images does not correspond to the only MR description of a pituitary abscess given until now, reporting a mass isointense to white matter. These signal characteristics could emanate from the presence of small amounts of blood breakdown products in the proteinaceous content of the abscess. MR appearance of a pituitary abscess is possibly aspecific and could depend on the pathological composition of the lesion.
本文报告了一名56岁的全垂体功能减退男性患者。垂体区域的磁共振（MR）检查显示垂体有一肿块，在T1加权图像上信号强度明显增加，在T2加权图像上呈低信号强度。手术中清除了大量脓性物质。在光学显微镜下，该组织被证实为发生在其他方面正常垂体中的垂体脓肿。T1加权图像上的高信号强度与迄今为止关于垂体脓肿的唯一MR描述不符，此前报道的肿块与白质等信号。这些信号特征可能源于脓肿蛋白质成分中少量血液分解产物的存在。垂体脓肿的MR表现可能是非特异性的，并且可能取决于病变的病理组成。
