The goal of this study was to analyze the influence of word order and case information on auditory sentence comprehension in Turkish agrammatic patients with Broca’s aphasia. A test was developed to examine the comprehension of sentences in base and derived word order that varied in their use of case for agents and themes. Sentences with base case assignment (subject=nominative; object=accusative) and non-base case assignment were included. The results show that both word order and case influence the performance of the Turkish Broca patients. A clause is comprehended best when there is both base case and base order information (active base order clauses). The performance of the patients drops when there is base case information but the theme is not in the base position (sentences with object scrambling and subject relative clauses). Clauses lacking base case information, where the theme is not in its base position (object relatives and passives), are understood the poorest. These data suggest that the sentence comprehension deficit in Turkish Broca’s aphasia is due to a problem in assigning thematic roles to the noun phrases by integrating syntactic information (word order) and morphological information (case). Such an integration problem is in keeping with previous findings on sentence production in Turkish. SENTENCE COMPREHENSION: AN INTEGRATION PROBLEM 95 5.