Background: Delusional jealousy also known as Othello syndrome has been described as a part of various neurological and psychiatric conditions.
Case Description: Here, we present a case of a 65 year old male patient who developed a delusion of infidelity subsequently after a right parietal lobe infarct.
Discussion: Our patient had developed OS subsequently after right parietal lobe infarct. However, not many case reports have been previously documented wherein an elderly patient developed delusion of infidelity with parietal lobe lesions.
Conclusion: Hence, this case may be indicative of previously unstudied areas of the brain being involved in the pathophysiology of delusion syndromes, which warrants further research.
Key Words: Othello Syndrome, Delusion of Infidelity, Right Parietal Lobe.