DSM-III: problems in diagnosis of paranoia and obsessive-compulsive disorder.

The diagnoses of paranoia and obsessive-compulsive disorder are not adequately dealt with either conceptually or phenomenologically in DSM-III. A case of monosymptomatic hypochondriacal psychosis illustrating this point is presented. The question of whether this disorder should be diagnosed as paranoia, obsessive-compulsive disorder or an atypical affective disorder is discussed.