A R A V I N T H A N a t el et al, 1983 reported a case with transient coma followed by asterixis, hypersomnia, vertical gaze disturbances, Korsakoff's syn­ drome and sub cortical dementia. Buttner et al, 1991 investigated 23 cases followed up for 5 years. N o clinical abnormality was detected in 11 cases and the rest showed hcmi -paresis, vertical gaze palsy, disorders of visual retention and deficits in concen­ tration. This case that is reported had altered consciousness with disorientation. O n re­ covering consciousness, he presented with delusional jealousy and profound memory loss. 'l*his case had altered consciousness and memory disturbances as reported by others. Vertical gaze palsy that has been uniformly reported by other workers was not seen in this case. The disturbances in attention and constructional abilities im­ proved while the memory deficits and delusions persisted after one month at the time of discharge from the hospital. The case is reported for its rarity, absence of localizing signs and for the presence of persistent delusions in bilateral thalamic infarction. REFERENCES Buttner T, Schilling G, Hornig CR, Dorndorf W (1991) Thalamic infarcts - clinical aspects, neuropsychological findings, prognosis Fortschr Neurol Psychiatr;59( 12); 479-87. Guberman A, Stuss D (1983), The syndrome of bilateral paramedian thalamic infarction, Neu­ rology; 33(5):540-6. Kiimral E, Evyapan D, BaJkir K, Kutluhan S (2001) Bilateral Thalamic Infarction. Clinical, etiological and MRI correlates. Acta Neuro Scand l03(l):35-42. Mauri o J, Saposnik G, Franco A., et al (2000) Fluctuation in bilateral thalamic infarct: a magnetic resonance diffusion study, Rev Neurology 16; 31 (2): 1165-1 167. Martinez Perez-Balsa A , Marti-Masso JF, Can-era N , Urtasun M (1997) Clinical vari­ ability of bilateral paramedian thalamic infarcts. Rev Neurol 25(145). 1353-62. Ujike H, Matsueda H, Kazahaya Y ., e t al(l989)- Korsakoff's syndrome as a prominent feature of bilateral paramedian thalamic infarc­ tion- a case report, Rinsho Shinkeigaku 29(8): 1055-8. •DR.ARAVINTHAN.S, Post graduate student DR. J. MUTHALAGAN, Assistant Professor DR. M. MURUGAPPAN, Professor, DR. R. PONNUDURAI, Director Institute of Mental Health. Medawakkam Tank Road. Cennai - 600 010. E-Mail: drvinthan@yahoo.com * Correspondence (60)