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  • Title: Optic coherence tomography appearances of retinal astrocytic hamartoma and systemic features in tuberous sclerosis of Japanese patients.
    Author: Kato A, Obana A, Gohto Y, Seto T, Sasano H.
    Journal: Eur J Ophthalmol; 2019 May; 29(3):330-337. PubMed ID: 29991284.
    Abstract:
    PURPOSE: To describe the optical coherence tomography findings of retinal astrocytic hamartoma of tuberous sclerosis and to confirm the association between the type of retinal astrocytic hamartoma and systemic manifestations in Japanese patients. STUDY DESIGN: A retrospective observational case series. METHODS: The medical records of 35 patients with tuberous sclerosis who underwent ophthalmological examination were reviewed. The retinal astrocytic hamartomas were classified into four types based on the optical coherence tomography findings, and their association with systemic disease was evaluated. RESULTS: A total of 40 retinal astrocytic hamartomas in 13 eyes of eight patients aged 4-28 years were identified. Optical coherence tomography images were obtained for 23 lesions in 10 eyes of seven patients. Retinal astrocytic hamartomas were seen as protruding lesions of varying heights (maximum thickness, range between 221 to 1043 μm). Of the 23, 15 lesions showed homogeneous reflectivity; in six lesions, hyper-reflective spots that presumably represented intratumoral calcification were noted. Vitreous changes were noted in 13 lesions; vitreous seeding by retinal astrocytic hamartoma was observed in seven eyes. There were no significant differences in the rates of each systemic feature among the optical coherence tomography types. CONCLUSION: Retinal astrocytic hamartomas were classified into four types according to the previous reports; however, this classification may be worthless because the extent of protrusion did not correspond to the intratumoral characteristics, and the involved depth of the retina was not same even in the same type. An association between the type of retinal astrocytic hamartoma and systemic manifestations was not confirmed in this small case series. We considered that the classification of retinal astrocytic hamartoma and its association with systemic manifestations need further study.
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