Children with Congenital Hypothyroidism Have Similar Neuroradiological Abnormal Findings as Healthy Ones

Table 1

Distribution of abnormal findings detected on MRI according to study group.

Findings on MRI	HC	CHT
Participants	38	30
Participants with incidental findings (%)	15 (39.5)	13 (43.3)
Incidental findings
(i) Prominent VR perivascular spaces	3 (7.9)	2 (6.7)
(ii) Hypoplastic corpus callosum	1 (2.6)	0
(iii) Mild cerebellar ectopia (2.1–3.5 cm)	3 (7.9)	4 (13.3)
(iv) Calcar avis cystic structure	1 (2.6)	0
(v) Choroidal cyst	3 (7.9)	2 (6.7)
(vi) Abnormalities in sella region	3 (7.9)	4 (13.3)
(vii) Pineal cyst (<1 cm)	2 (5.2)	0
(viii) Encephalomalacia from remote ischemic event	1 (2.6)	0
(ix) Foci of increased signal intensity in the cerebral white matter on T2 (1–17 mm)	1 (2.6)	2 (6.7)

There are 32 lesions among 28 participants with abnormalities, since 4 participants had more than one abnormal finding on MRI.