Exploratory operation in a patient with spontaneous temporal bone cerebrospinal fluid leaks: A case report

Figure 1 Preoperative high-resolution computed tomography image of the temporal bone. A: Left temporal bone and mastoid process (affected side). A rough and damaged bony structure of the petrous part of the temporal bone, with fluid accumulation in the left mastoid process, left middle ear, and external ear canal was observed; B: Right temporal bone and mastoid process (healthy side). White arrows indicate suspected bone defect locations.

Figure 2 Preoperative sagittal plane sella region magnetic resonance imaging and computed tomography images. A: Visible are an empty sella turcica, expansion of the sella floor, and cerebrospinal fluid in the sphenoid sinus; B: Thinning of the bony sella floor with suspected bone defects.

Figure 3 Intraoperative photograph. These circular dural defects of varying dimensions are observed to be embedded with cerebral tissue from the inferior aspect of the temporal lobe, exhibiting a morphology analogous to that of a meningoencephalocele. White arrow: Dural defects of varying sizes.