Symptoms of interhemispheric disconnection after acquired brain injury are unusual in the current clinical practice. Symptoms usually diminish spontaneously and may include tactile anomia, agraphia and left signs of competition between the hemispheres, such as "alien hand sign". This work presents a case report of a 33 year old patient who developed symptoms of interhemispheric disconnection and executive function defi cits after surgery for removal of a tumor in the pituitary region, as well as the evaluation of the applicability of the neuropsychological rehabilitation program for the cognitive complaints presented. The patient was evaluated with standardized neuropsychological instruments before starting rehabilitation and again close to the discharge from treatment. The case study was conducted by analyzing intervention data and the clinical outcome of the patient in the institutional records (results of neuropsychological evaluation examination and records of interventions in rehabilitation sessions). Throughout his evolution, the patient showed improvement in cognitive symptoms and demonstrated benefi ts from the training and strategies used for his adaptation and return to work and other previous activities. The study highlights the importance of conducting more studies of neuropsychological interventions for individuals with cognitive defi cits.Keywords: Cognition, rehabilitation, injury, apraxia, frontal lobe. Avaliação e Reabilitação Neuropsicológica após Lesão Encefálica Adquirida ResumoSintomas de desconexão inter-hemisférica após lesão cerebral adquirida são pouco usuais na prática clínica atualmente. Os sintomas costumam diminuir espontaneamente e podem incluir anomia táctil, agrafi a à esquerda e sinais de competição entre os hemisférios, como o "sinal da mão alienígena". Este trabalho tem por objetivo apresentar um relato de caso clínico de paciente de 33 anos, que evoluiu com sintomas de desconexão inter-hemisférica e alterações de funções executivas, após intervenção cirúrgica para remoção de tumor em região da hipófi se, além de avaliar a aplicabilidade de programa de reabilitação neuropsicológica para as queixas cognitivas apresentadas. O paciente foi avaliado com instrumentos neuropsicológicos padronizados antes de iniciar a reabilitação e próximo à alta do tratamento. O estudo