1. Date of download: 7/8/2016 Copyright © 2016 American Medical Association. All rights reserved. From: Spontaneous Cerebrospinal Fluid Rhinorrhea of the Foramen Cecum in Adulthood Arch Otolaryngol Head Neck Surg. 2012;138(1):79-82. doi:10.1001/archoto.2011.217 Figure 1. Computed tomographic (CT) scans of the paranasal sinuses. Axial (A) and sagittal (C) CT scans of the paranasal sinuses reveal a patent foramen cecum (arrow) in the posterior wall of the frontal sinus. A coronal CT cisternogram (B) revealed minimal extravasation of contrast material through this defect (arrow). Figure Legend:

2. Date of download: 7/8/2016 Copyright © 2016 American Medical Association. All rights reserved. From: Spontaneous Cerebrospinal Fluid Rhinorrhea of the Foramen Cecum in Adulthood Arch Otolaryngol Head Neck Surg. 2012;138(1):79-82. doi:10.1001/archoto.2011.217 Figure 2. Intraoperative photographs through the modified Lothrop approach. A, The Lothrop cavity with the foramen cecum (FC) is evident in the midline (arrow). B, After the bone is drilled at the FC, the dural defect (asterisk) is exposed. C, The defect is repaired with an inlay of acellular dermal allograft (asterisk). D, An overlay of acellular dermal allograft is added to the first graft and covered with gentamicin-soaked gelfoam (GF). ISS indicates intersinus septum; LFS, left frontal sinus; and RFS, right frontal sinus. Figure Legend:

3. Date of download: 7/8/2016 Copyright © 2016 American Medical Association. All rights reserved. From: Spontaneous Cerebrospinal Fluid Rhinorrhea of the Foramen Cecum in Adulthood Arch Otolaryngol Head Neck Surg. 2012;138(1):79-82. doi:10.1001/archoto.2011.217 Figure 3. An axial computed tomogram (A) and a magnetic resonance image (B) show a patent Lothrop cavity 7 months after surgery. Figure Legend: