... ( a ): the anterior lobe of the pituitary gland is hyperintense and shows an upward convex margin (arrow). Two months of age ( b ): infant configuration of the pituitary gland; the anterior lobe displays a flat superior surface and isointensity to the white matter (arrow), while the posterior lobe is depicted...

... white arrow). b Scan in a patient with a known Axenfeld-Rieger anomaly and glaucoma demonstrating iris hypoplasia; complete absence of iris stroma (single white chevron) and partial absence of iris stroma (double white chevron). c A patient with glaucoma and a scan through Haab’s striae...

... the posterior surface of the implant (thin short white arrows), and the posterior capsule (thick short white arrows) separated by lens epithelial cell proliferation (white star). There is one area of opening (dashed arrows), but this is isolated. d This finding allowed defocus of the YAG laser, after which...

.... The deep capillary plexus (corresponding to the tissue between the two green parallel lines on the B-scan image) appears to be the most affected vascular layer. In contrast with macular edema by other causes, the black pseudocystic areas (red arrows) are much larger and are partially interspersed...

... by signal, as it appears for the medial orbital wall (5) and the vertical lamella of the right middle turbinate (three parallel arrows). The lamella is displaced laterally by the neoplasm (T). A right infraorbital ethmoid cell is indicated (6). Fig. 2. Intestinal-type adenocarcinoma. 3D isotropic...

.... b Same embryo in 3D surface rendering. The skull shows only some small calcifications as precursors of the later bones (arrows). Fig. 1. a Embryo at 9 weeks 4 days (crown-rump-length 29 mm) in triplanar 2D display. The point of intersection between the 3 planes lies in the third...

... ). Fig. 6 Irvine-Gass syndrome. Fundus color photo. Arrow = CME. Fig. 7 Irvine-Gass syndrome. Autofluorescence. Arrow = CME. Fig. 8 Irvine-Gass syndrome. Infrared retinography. Fig. 9 Irvine-Gass syndrome. Red-free imaging. Arrow = CME. Fig. 10 Irvine-Gass...

... between angiographic and clinically significant CME has to be considered. Irvine-Gass syndrome. Fundus color photo. Arrow = CME. Fig. 6. Irvine-Gass syndrome. Fundus color photo. Arrow = CME. Irvine-Gass syndrome. Autofluorescence. Arrow = CME. Fig. 7. Irvine-Gass syndrome...

... a role in the genesis of MS lesions. Fig. 1 T2-weighted images of MS patient 1 acquired in an upright weight-bearing position show two periventricular MS plaques perpendicular to the ventricular wall (arrows). Lesion 1 exhibits an explicit connection between ventricular CSF and an MS plaque...

... of the outside edge of the eyebrow, and the lower pole of the lobule at the alar base (arrow 1). In the anterior-posterior direction, design so that the height of the ear concha is positioned at the mastoid process of the temporal bone (arrow 2) of the scheduled position of canalplasty (arrow 3...

... with severe non-proliferative diabetic maculopathy). a C-scan OCT-angiogram (20-μm-thick): the choriocapillaris appears slightly rarefied in the macular area. Limited areas of flow void (yellow arrows with dashed yellow circle) are visible, probably due to small non-perfused areas. b-c The cross-sectional...

... lesions originating in the deep vascular layer. The yellow circles show vascular abnormalities derived from both layers matching those on FFA. The arrows point to lesions that are better visualized using one technique over the other (yellow: better visualization with FFA; and green: better with OCTA...

... and small areas of capillary nonperfusion. The presence of large, roundish, hypointense lesions (yellow arrows), which are due to cystoid spaces in the perifoveal area. Smaller cystoid lesions are also visible in the extrafoveal area (green arrows). These findings are generally preceded by focal...

... to excellent agreement between film and digital images in determining DR severity. Fig. 1 Color fundus photography of an eye with proliferative diabetic retinopathy. Image centered on fovea ( a ) shows neovascularization at the disc (NVD; arrows) as well as areas of dot and blot hemorrhages and hard...

... intraretinal hemorrhages, dilated tortuous retinal veins, macular edema, and mild optic disc edema. b En face optical coherence tomography (OCT) shows an area of hyporeflectivity (white arrow) that could contribute to artifactual changes on OCT angiogram. The yellow arrow demonstrates normal reflectivity...

... of ethmoid ITAC and duraplasty with iliotibial tract. The scan obtained 3 months after treatment ( a ) shows a thick layer separating the anterior cranial fossa from the nasal cavities. On the intracranial surface (arrows) the duraplasty is smooth with faint enhancement possibly representing dural...

... hypointense ( b ), avidly enhancing ( c ), hyperintense on DWI b1000 ( d ) and on ADC map ( e ), well-circumscribed lesion (arrows) with a high ADC value (mean ADC = 2.159 × 10 -3 mm 2 /s) is centered just inferiorly to the right stylomastoid foramen. On precontrast sagittal constructive interference...

... a) and between the RPE and Bruch's membrane (fig. 2 b) on OCTA helped to visualize the classic and occult components, respectively (arrows). Fig. 1 a Color fundus photography demonstrates central thickening, retinal pigment epithelium (RPE) changes, and associated hemorrhage. Fluorescein angiography...

... arrow is the anterior belly of the digastric muscle. Fig. 3. The exposure of the inferior submandibular gland (SMG) on the right. The black arrowhead is the SMG and the white arrow is the anterior belly of the digastric muscle. The white arrow points to the right SMG retracted inferiorly using...