Lim Sung-Chul, Hong Ran, Kim Young-Sook, Jang Suk-Jung
Department of Pathology, Chosun University College of Medicine, Gwangju, Korea.
J Neurooncol. 2006 Sep;79(2):169-70. doi: 10.1007/s11060-005-9065-1. Epub 2006 Jul 5.
Cavernous angiomas are relatively rare vascular malformations. They are generally located supratentorially with a rare incidence in the cerebellum. Cavernous angiomas, accompanied by a large cyst, are very rare. We present a case of a cavernous angioma with the unusual MRI findings of a large cyst and a small mural nodule.
The patient was a 48-year-old man who complained of a history of dizziness for several weeks. The neurologic examination in the neurosurgery clinic was without deficit.
The cyst measured 4.7x4.0 cm and contained serous fluid with a nodular mass in the lower part of the cyst. The cystic wall and the solid mural nodule were completely removed through a midline suboccipital approach. Postoperatively, the patient remained neurologically intact.
When a large cystic lesion is present in the cerebellum, preoperative radiological and intraoperative findings led to misdiagnosis. Therefore, a rare cystic angioma must be considered in the differential diagnosis of infratentorial cystic masses.
海绵状血管瘤是相对罕见的血管畸形。它们通常位于幕上，在小脑的发生率很低。伴有大囊肿的海绵状血管瘤非常罕见。我们报告一例海绵状血管瘤，其具有大囊肿和小壁结节这一不寻常的MRI表现。
患者为一名48岁男性，主诉有数周头晕病史。神经外科门诊的神经系统检查无异常。
囊肿大小为4.7×4.0厘米，囊内为浆液性液体，囊肿下部有一个结节状肿块。通过枕下中线入路将囊肿壁和实性壁结节完全切除。术后，患者神经功能保持完好。
当小脑出现大的囊性病变时，术前影像学和术中表现会导致误诊。因此，在幕下囊性肿块的鉴别诊断中必须考虑罕见的囊性血管瘤。
