PT - JOURNAL ARTICLE AU - Lee, Phil Hyu AU - Yeo, Seung Hyeon AU - Yong, Seok Woo AU - Kim, Yun Joong TI - Odour identification test and its relation to cardiac <sup>123</sup>I-metaiodobenzylguanidine in patients with drug induced parkinsonism AID - 10.1136/jnnp.2007.121285 DP - 2007 Nov 01 TA - Journal of Neurology, Neurosurgery &amp; Psychiatry PG - 1250--1252 VI - 78 IP - 11 4099 - http://jnnp.bmj.com/content/78/11/1250.short 4100 - http://jnnp.bmj.com/content/78/11/1250.full SO - J Neurol Neurosurg Psychiatry2007 Nov 01; 78 AB - We investigated olfactory function and its relation to cardiac 123I-metaiodobenzylguanidine (MIBG) uptake in 15 patients with drug induced parkinsonism (DIP). The mean Cross Cultural Smell Identification (CCSI) score was significantly greater in patients with DIP than in those with Parkinson’s disease (PD: 6.9 (1.6) vs 4.4 (2.2); p&lt;0.001); however, the mean CCSI score in patients with DIP was not significantly different from controls. One patient with DIP, whose CCSI score was significantly reduced, also exhibited decreased cardiac MIBG uptake. DIP patients with CCSI scores within the normal range had normal cardiac MIBG uptake. Our study suggests that an olfactory function test may be a useful tool for detecting DIP unrelated to PD and for identifying patients with DIP who have subclinical PD.