The present case study presents the speech therapy evaluation of a 17-year-old adolescent patient, adopted in an Eastern country, with borderline intellectual disability and sensory problems. After the initial evaluation, a specific lexical-syntactic language disorder was diagnosed, with comorbidity with evolutionary dyslexia and severe sensorial problems. Parallel to the diagnosis, it was postulated that the adolescent had foetal alcohol syndrome associated with prenatal alcohol exposure, both due to her clinical condition and suspicion from her adoption history. After a year of speech therapy intervention, the girl showed no improvement.