A 35 years old male, with pre-morbid anxious traits & heavy smoker, believes that he has been suffering from 'lung carcinoma' for a year, No significant clinical finding is detected on examination and relevant investigation. He continues to stick to his belief despite evidence to the contrary. In the process, he has spent a huge amount of money, time and energy in getting himself unduly investigated. He is most likely suffering from -
Preoccupation with fear of serious illness (lung cancer), normal clinical examination & investigation and multiple investigations suggest the diagnosis of hypochondriasis.
Carcinoma lung
Hypochondriacal disorder
Delusional disorder
Malingering