Fine‐needle aspiration biopsy of vertebral body lesions: Cytologic, pathologic, and clinical correlations of 57 cases

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Abstract
We reviewed 57 cases of fine-needle aspiration biopsy (FNAB) specimens of vertebral body lesions at our institutions and sought correlations between clinical histories, aspirates, and tissue specimens. Patients'ages ranged from 10–86 yr (mean 62 yr). Previous clinical histories included malignancy (n = 33), osteomyelitis or systemic infection (n = 18), and nonspecific (n = 6). FNAB diagnoses were rendered in 81% of cases (n = 46) and were correlated with previous clinical history (P < 0.004). Tissue diagnoses were also correlated with previous clinical history (P < 0.02). In 19% of cases (n = 11), FNAB was unsatisfactory; of these, tissue specimens were diagnostic for five cases. In 19% of cases (n = 11), both aspirates and tissue specimens were available, and the diagnoses coincided in all cases; tissue specimens did not enhance the results of aspirates which produced positive results. Aspirates which showed normal bone marrow elements appeared to effectively rule-out metastatic malignancy based on clinical follow-up (mean 3.7 yr). Diagn Cytopathol 1994;11:348–351.