[Hemorrhage in the medial areas of bilateral putamens causing deficiency of memory and calculation: report of one case].

Bilateral cerebral hemorrhages in the medial areas of bilateral putamens that impair the memory and calculation abilities are rare clinical entities. In the case presently reported, the patient suffered initial cerebral hemorrhage 3 years ago in the medial area of putamen on the right side with light left paralysis but the learning and memory functions were intact. A recent cerebral hemorrhage on the left side leaving mild paralysis of the right upper limb, however, had caused considerable loss of his recent memory and calculation ability. As the 2 cerebral hemorrhages were found to cause damage to the marginal devision, the symptoms developed in this special case had provided clinical evidence for the postulation that the marginal division is associated with memory and calculation function.