Complete Corpus Callosum Agenesis: Can It Be Mild?

Table 1

Neuropsychological profile of the patient.

Leiter-R (full IQ)	99
Raven progressive matrices (Colored form)	21/36 (75° percentile)
Constructional praxis
Block building models	6/8 (slightly below average)
Borrelly-Oleron	0/8 (below average; does not recognize the need of a hidden cube)
Modified Frostig test
(i) QPVG	5° percentile
(ii) QPVMR	21° percentile
(iii) QIVM	13° percentile
Memory
(i) Digit span	Normal
(ii) Verbal span	Normal
(iii) Corsi block-tapping test	z score: −2
Tower of London (executive functions)
(i) Score	5°–10° percentile
(ii) Decision time	z score: −0.5
(ii) Executing time	z score: −0.55
(iv) Total time	z score: −0.67
(v) Violation of rules	6 (high)
Modified bells cancellation test
(i) Rapidity	Below 10° percentile
(ii) Accuracy	Below 10° percentile
TROG	z score: −1.87
Text reading
Rapidity/correctness
(i) Rrapidity	z score: −1.4
(ii) Correctness	7 errors (average)
Comprehension	3 correct answers out of 10 (below average)
Writing
Dictation	Unable to complete the test; however, although writing was readable, the number of errors was significantly higher than expected
Mathematic abilities
(i) Number knowledge	Very poor
(ii) Calculation	Very poor