False Memory Syndrome (FMS) is caused by memories of a traumatic episode, most commonly childhood sexual abuse, which are objectively false, but in which the person strongly believes. These pseudomemories usually arise in the context of adult psychotherapy and are often quite vivid and emotionally charged. FMS is rare and sometimes could be confused with psychotic disorder and malingering. The infrequency with which it is encountered makes this syndrome a diagnostic challenge. Failure to diagnose can lead to significant morbidity.

We studied a 26-year-old female with no prior Psychiatric history who started to recall vivid memories of sexual abuse perpetrated by her father, following few sessions of clinical hypnosis. She presented a low mood, disorganized behaviour and aggressivity towards her father when she was admitted to our ward. After a normal CT brain scan and lab tests and a meticulous clinical history, the clinical diagnosis was made. She was successfully managed with supportive psychotherapy combined with mood stabilizer medications.

This case illustrates the unknown field between memory and confabulation and the value of a complete history. Physicians should be alert and keep an open mind about this iatrogenic disorder. Research is needed on the identification of memory mechanisms, specific situations and personality factors involved in this syndrome.