Extract clinical features from this text as a list  : "N1270 (Family6), a younger brother of N1269, was born at
39 weeks and 0 days with a birth weight of 2366 g (−2.14 SD), after
an uneventful antenatal period. No physical abnormalities were
noted at birth. At 3 months of age, he was admitted to the hospital
because of poor weight gain and possible developmental abnormalities.
He had bicytopenia (thrombocytopenia and anemia), hypothyroidism,
skin hyperpigmentation, agenesis of corpus callosal,
and recurrent epileptic seizures. Bone marrow examination showed
MDS with a normal karyotype. His motor and intellectual disabilities
were severe. He needed a gastrostomy tube for feeding at 1 year and 8 months of age. He died of infection at 2 years of age: height,
76.7 cm (−4.5 SD); weight, 8.85 kg (−3.0 SD); and head circumference,
40 cm (−5.8 SD). Telecanthus, displacement of the right
fourth toe, and low-set ears were pointed out. He had hypertrophic
cardiomyopathy and frontal lobe atrophy." Provide response in all capital letters, no lowercase letters allowed.
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