ABSTRACT
We report a case of an ectopic, extraspinal meningioma that appeared as a midline interscapular mass in a 13-year-old girl. The tumor involved the T-2 and T-3 spinous processes, but was dorsal to the lamina and was entirely extrinsic to the spinal canal. Large amounts of tumoral calcification and reactive hyperostosis were present, radiologically mimicking an osteogenic sarcoma.
Subject(s)
Choristoma/diagnosis , Epidural Neoplasms/diagnosis , Meningeal Neoplasms/diagnosis , Meningioma/diagnosis , Spinal Neoplasms/diagnosis , Thoracic Vertebrae , Tomography, X-Ray Computed , Adolescent , Biopsy , Choristoma/pathology , Choristoma/surgery , Diagnosis, Differential , Epidural Neoplasms/pathology , Epidural Neoplasms/surgery , Female , Humans , Laminectomy , Meningeal Neoplasms/pathology , Meningeal Neoplasms/surgery , Meningioma/pathology , Meningioma/surgery , Osteosarcoma/diagnosis , Osteosarcoma/pathology , Osteosarcoma/surgery , Spinal Neoplasms/pathology , Spinal Neoplasms/surgery , Thoracic Vertebrae/pathology , Thoracic Vertebrae/surgeryABSTRACT
We report an unusual case of biopsy-proven combined leptomeningeal and calvarial sarcoidosis, as seen on CT and MRI. A solitary large thick plaque was present in the left hemisphere, with overlying bony infiltration and erosion and associated abundant vasogenic edema in the brain. The lytic lesion was visible on Scout digital radiography for CT slice positioning. The typical manifestations of CNS sarcoidosis, i.e., chronic leptomeningitis in the basilar cisterns and hypothalamic regions, were absent.
Subject(s)
Central Nervous System Diseases/diagnosis , Meninges/pathology , Sarcoidosis/diagnosis , Skull/pathology , Adult , Biopsy , Central Nervous System Diseases/pathology , Humans , Magnetic Resonance Imaging , Male , Meninges/diagnostic imaging , Sarcoidosis/pathology , Skull/diagnostic imaging , Tomography, X-Ray ComputedABSTRACT
This study examined some psychometric properties of the Test of Basic Auditory Capabilities (TBAC). Two experiments are described that evaluate the psychometric functions and the test-retest reliability of the tests comprising the TBAC. The psychometric functions were established for young listeners with normal hearing and the test-retest reliability was evaluated both with young listeners with normal hearing and elderly listeners with hearing impairment. Results indicate that maximum scores on the TBAC are reached at presentation levels of at least 65-75 dB SPL. In addition, the reliability analyses indicate that the TBAC is a reliable measure for both young listeners with normal hearing and elderly listeners with hearing impairment when at least one practice test is given.
