Abstract
Morquio Syndrome (Mucopolysaccharidosis type 4) (MS) is an autosomal recessive genetic disorder with severe skeletal deformities. Here we presented a twelve years old girl with MS who was diagnosed as "major depressive disorder, with psychotic features". Kiddie Schedule for Affective Disorders and Schizophrenia for School Age Children-Present and lifetime version and Diagnostic Criteria of Diagnostic and Statistical Manual of Mental Disorders, 4th edition were used by diagnosis procedure. The case was treated using sertraline and risperidone. This case was thought to be important for discussing because of emphasizing the necessity and importance of consultation liaison work between pediatry and psychiatry departments for chronic physical diseases and also because of the limited number of studies about the relationship between psychiatric conditions and MS.
Keywords: Depressive disorders, Morquio syndrome, psychotic features, chronic physical disease
