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. 2019 Mar 12;6:14. doi: 10.1038/s41439-019-0045-y

Table 1.

Primary and secondary signs of BBS in this patient

Age of onset Clinical information Intervention
Primary signs
 Rod-cone dystrophy 8 Years old Visual acuities: 0.01 (right), 0.04 (left), (with mild myopia and astigmatism) No medication

Fundus finding: binocular diffuse retinal degeneration

Visual field: centipede constriction (binocular)

Optical coherence tomography: binocular diffuse thinning of outer retinal layer ( + ), macular atrophy ( + ), macular edema ( − ), cystic changes ( − ), elipsoid zone ( − )

Fundus autofluorescence: binocular mottled pattern ( + ), perifoveal ring ( − )

 Polydactyly At birth Both feet Plastic surgery (19 months old)
 Obesity 9 Years old

Height: 164 cm

Weight: 78.1 kg

Body mass index (BMI): 29 kg/m2

No medication
 Hypogonadism Testosterone: 300–600 ng/dl No medication
 Renal anomalies 1 Week old

Cystic kidney

Creatinine: 1.79 mg/dl

BUN: 21 mg/dl

eGFR cre: 37.2 mL/min/1.73 m2

No medication
 Mental retardation No - -
Secondary signs
 Hirschsprung disease 3 Months old - Surgery (28 months old)
 Abnormal glucose tolerance 9 Years old

HbA1c: 5.6%,

75 g oral glucose tolerance test: 82 mg/dL at 0 h, 185 mg/dL at 2 h

No medication
 Exotropia NA - Bilateral lateral rectus muscle recession (14 years old)
 Hypertension 27 Years old Blood pressure = 145/83 mm Hg Oral medicine (Azilsartan 20 mg and Amlodipine besilate 3.47 mg per day)
 Cataract NA Binocular anterior sub-capsular cataract -
 Heart diseases No - -
 Liver fibrosis No - -