Congenital Hypertrophy of the RPE – Page 13 of 44
Histological Section as Compared to the OCT Image Although the photoreceptor integrity line, or PIL (defined as the junction between the inner and outer segments) is barely visible in most histological sections, it is highly prominent in normal SD OCTs. The PIL, as shown above, should be continuous throughout the entire scan in
Congenital Hypertrophy of the RPE – Page 12 of 44
Case 2: Topcon 3D OCT Images of Right Eye
Congenital Hypertrophy of the RPE – Page 11 of 44
Case 2: Isolated CHRPE Lesion Topcon Undilated Fundus Image of Right Eye Case 2: A 26-year-old asymptomatic Asian female with BCVA 20/20 OU. Note the pigmented lesion located superior temporal to the disc.
Congenital Hypertrophy of the RPE – Page 10 of 44
Case 1: Heidelberg Engineering SPECTRALIS® OCT Images of Right Eye
Congenital Hypertrophy of the RPE – Page 9 of 44
Case 1: Optomap® Images and Heidelberg Engineering SPECTRALIS® OCT of Right Eye The vertical OCT sections are through the large lesion in the nasal periphery of the right eye shown on the previous page. It appears that the retina is elevated possibly due to an underlying choroidal lesion such as a nevus
Congenital Hypertrophy of the RPE – Page 8 of 44
Case 1: Optomap® Fundus Image Comparison of Right Eye The pigmented lesions are easily discerned in the composite color (top) and red separation (bottom) optomap® images, but not in the green separation (middle) optomap® image. Since the large lesion is not visible in green separation, it is possible the lesion is under the RPE and
Congenital Hypertrophy of the RPE – Page 7 of 44
Congenital grouped pigmentation of the RPE are grouped in clusters often in a single quadrant of the retina.1 The lesions are often larger in the periphery and decrease in size closer to the disc.2 The smaller lesions are often paired which resemble animal tracks.
Congenital Hypertrophy of the RPE – Page 6 of 44
Case 1: Optomap® Color Fundus Image of Right Eye
Congenital Hypertrophy of the RPE – Page 5 of 44
Note the area of white without pressure in the temporal periphery of the right eye.