Maiuri F, Iaconetta G, Giamundo A, Stella L, Lamaida E
Institute of Neurosurgery, School of Medicine, University Federico II, Naples, Italy.
J Neurosurg Sci. 1996 Mar;40(1):65-70.
Osteomas involving the anterior cranial base are quite rare lesions. Intracranial and orbital extension of these tumors, causing neurological and ophthalmological symptoms and signs is a rare event. Two such cases are reported. In the first one, the tumor arose from the frontal sinus and extended upward to the medial and superior wall of the right orbital cavity and the lower part of the right frontal convexity. In the second case the osteoma arose from the left orbital roof and extended to the lower part of the homolateral frontal convexity and the splenoid wing. After the operation the symptoms disappeared and the cosmetic deficits were corrected. Skull-films, CT and MR well define the bony extension and the displacement of the orbital and intracranial structures. Indications to the surgery include progressive ophthalmologic and neurologic signs and significant cosmetic deformations. The surgical techniques and the postoperative complications are briefly discussed.
累及前颅底的骨瘤是相当罕见的病变。这些肿瘤向颅内和眶内扩展，导致神经和眼科症状及体征的情况则更为罕见。本文报告了两例这样的病例。第一例中，肿瘤起源于额窦，向上延伸至右眼眶腔的内侧壁和上壁以及右额凸的下部。第二例中，骨瘤起源于左眶顶，延伸至同侧额凸的下部和蝶骨翼。手术后症状消失，美容缺陷得到纠正。颅骨平片、CT和MR能很好地显示骨质扩展以及眶内和颅内结构的移位。手术指征包括进行性眼科和神经体征以及明显的美容畸形。本文简要讨论了手术技术和术后并发症。
