Again seen are surgical changes of right-sided temporal craniotomy and mastoidectomy with fixation instruments in place. There are changes of recent transmastoid surgery for approach to the right petrous apex lesion. Within the limits of CT imaging, the expansile cystic lesion has been debulked with relief of mass effect on the brainstem. Again seen is bony dehiscence of the right distal carotid canal near the right petrous apex. There is no significant intracranial hemorrhage, mass effect or midline shift. The ventricles, sulci, and cisterns are symmetric and unremarkable. The gray-white matter differentiation is preserved. The paranasal sinuses and left mastoid air cells are clear.
location descriptor_fin: ['right']clinical findings_fin: {'surgical changes': {'clinical finding': 'surgical changes', 'existence': 'pos_dx', 'descriptive_term': 'surgical', 'observation': 'change'}, 'fixation instruments': {'clinical finding': 'fixation instruments', 'existence': 'pos_dx', 'descriptive_term': 'fixation', 'observation': 'instrument'}}anatomical entity_fin: {'apex': {}}location descriptor_fin: ['right']clinical findings_fin: {'changes': {'clinical finding': 'changes', 'existence': 'pos_dx', 'observation': 'change'}, 'recent transmastoid surgery': {'clinical finding': 'recent transmastoid surgery', 'existence': 'pos_dx', 'descriptive_term': 'recent transmastoid', 'observation': 'surgery'}, 'right petrous apex lesion': {'clinical finding': 'right petrous apex lesion', 'cf_snomed': {'lesion': 52988006}, 'existence': 'unc_dx', 'descriptive_term': 'right petrous apex', 'observation': 'lesion'}}anatomical entity_fin: {'brainstem': {}}clinical findings_fin: {'expansile cystic lesion': {'clinical finding': 'expansile cystic lesion', 'cf_snomed': {'lesion': 52988006}, 'existence': 'pos_dx', 'descriptive_term': 'expansile cystic', 'observation': 'lesion'}, 'mass effect': {'clinical finding': 'mass effect', 'existence': 'pos_dx', 'descriptive_term': 'mass', 'observation': 'effect'}}anatomical entity_fin: {'carotid canal': {'location descriptor': 'right distal'}, 'apex': {}}location descriptor_fin: ['right', 'distal']clinical findings_fin: {'bony dehiscence': {'clinical finding': 'bony dehiscence', 'cf_snomed': {'dehiscence': 11108009}, 'existence': 'pos_dx', 'descriptive_term': 'bony', 'observation': 'dehiscence'}}location descriptor_fin: ['midline']clinical findings_fin: {'significant intracranial hemorrhage': {'clinical finding': 'significant intracranial hemorrhage', 'cf_snomed': {'intracranial hemorrhage': 1386000}, 'existence': 'neg_dx', 'descriptive_term': 'significant intracranial', 'observation': 'hemorrhage'}, 'mass effect': {'clinical finding': 'mass effect', 'existence': 'neg_dx', 'descriptive_term': 'mass', 'observation': 'effect'}, 'midline shift': {'clinical finding': 'midline shift', 'cf_snomed': {'shift': 9546005}, 'existence': 'neg_dx', 'descriptive_term': 'midline', 'observation': 'shift'}}clinical findings_fin: {'symmetric': {'clinical finding': 'symmetric', 'existence': 'pos_dx', 'observation': 'symmetric'}}clinical findings_fin: {'gray-white matter differentiation': {'clinical finding': 'gray-white matter differentiation', 'existence': 'pos_dx', 'descriptive_term': 'gray-white matter', 'observation': 'differentiation'}}anatomical entity_fin: {'paranasal sinuses': {}, 'mastoid air cells': {'location descriptor': 'left'}}location descriptor_fin: ['left']clinical findings_fin: {'clear': {'clinical finding': 'clear', 'existence': 'neg_dx', 'observation': 'clear'}}
<s>[INST] Write the finding section for a radiology report based on the following information: location descriptor_fin: ['right']clinical findings_fin: {'surgical changes': {'clinical finding': 'surgical changes', 'existence': 'pos_dx', 'descriptive_term': 'surgical', 'observation': 'change'}, 'fixation instruments': {'clinical finding': 'fixation instruments', 'existence': 'pos_dx', 'descriptive_term': 'fixation', 'observation': 'instrument'}}anatomical entity_fin: {'apex': {}}location descriptor_fin: ['right']clinical findings_fin: {'changes': {'clinical finding': 'changes', 'existence': 'pos_dx', 'observation': 'change'}, 'recent transmastoid surgery': {'clinical finding': 'recent transmastoid surgery', 'existence': 'pos_dx', 'descriptive_term': 'recent transmastoid', 'observation': 'surgery'}, 'right petrous apex lesion': {'clinical finding': 'right petrous apex lesion', 'cf_snomed': {'lesion': 52988006}, 'existence': 'unc_dx', 'descriptive_term': 'right petrous apex', 'observation': 'lesion'}}anatomical entity_fin: {'brainstem': {}}clinical findings_fin: {'expansile cystic lesion': {'clinical finding': 'expansile cystic lesion', 'cf_snomed': {'lesion': 52988006}, 'existence': 'pos_dx', 'descriptive_term': 'expansile cystic', 'observation': 'lesion'}, 'mass effect': {'clinical finding': 'mass effect', 'existence': 'pos_dx', 'descriptive_term': 'mass', 'observation': 'effect'}}anatomical entity_fin: {'carotid canal': {'location descriptor': 'right distal'}, 'apex': {}}location descriptor_fin: ['right', 'distal']clinical findings_fin: {'bony dehiscence': {'clinical finding': 'bony dehiscence', 'cf_snomed': {'dehiscence': 11108009}, 'existence': 'pos_dx', 'descriptive_term': 'bony', 'observation': 'dehiscence'}}location descriptor_fin: ['midline']clinical findings_fin: {'significant intracranial hemorrhage': {'clinical finding': 'significant intracranial hemorrhage', 'cf_snomed': {'intracranial hemorrhage': 1386000}, 'existence': 'neg_dx', 'descriptive_term': 'significant intracranial', 'observation': 'hemorrhage'}, 'mass effect': {'clinical finding': 'mass effect', 'existence': 'neg_dx', 'descriptive_term': 'mass', 'observation': 'effect'}, 'midline shift': {'clinical finding': 'midline shift', 'cf_snomed': {'shift': 9546005}, 'existence': 'neg_dx', 'descriptive_term': 'midline', 'observation': 'shift'}}clinical findings_fin: {'symmetric': {'clinical finding': 'symmetric', 'existence': 'pos_dx', 'observation': 'symmetric'}}clinical findings_fin: {'gray-white matter differentiation': {'clinical finding': 'gray-white matter differentiation', 'existence': 'pos_dx', 'descriptive_term': 'gray-white matter', 'observation': 'differentiation'}}anatomical entity_fin: {'paranasal sinuses': {}, 'mastoid air cells': {'location descriptor': 'left'}}location descriptor_fin: ['left']clinical findings_fin: {'clear': {'clinical finding': 'clear', 'existence': 'neg_dx', 'observation': 'clear'}} [/INST] Again seen are surgical changes of right-sided temporal craniotomy and mastoidectomy with fixation instruments in place. There are changes of recent transmastoid surgery for approach to the right petrous apex lesion. Within the limits of CT imaging, the expansile cystic lesion has been debulked with relief of mass effect on the brainstem. Again seen is bony dehiscence of the right distal carotid canal near the right petrous apex. There is no significant intracranial hemorrhage, mass effect or midline shift. The ventricles, sulci, and cisterns are symmetric and unremarkable. The gray-white matter differentiation is preserved. The paranasal sinuses and left mastoid air cells are clear. </s>