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Pan African Medical Journal

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Fine needle Aspiration Biopsy (FNAB) in the initial evaluation and diagnosis of palpable soft tissue lesions and with histologic correlation

GO Ogun

Abstract


Introduction: Fine-needle aspiration biopsy (FNAB) as a means of  evaluation of palpable soft tissue lesions is poorly utilized in our  environment despite the fact that it safe, cheap, quick and easy to  perform.

Methods: All cases of cases of palpable soft tissue lesions of the trunk and
extremities where FNAB was used as the initial evaluation tool were  reviewed. Furthermore, the records for corresponding cases that had open
excision biopsy and ultimately had histologic diagnosis out of these cases were also retrieved and correlated with the final diagnosis from FNAB.

Results: Out of 142 aspirates, only 107(75.3% of cases) fulfilled the  inclusion criteria for the study. The age range was from 0-85 years (mean = 41.2 yrs.) with a roughly equal male:female ratio. The lesions were  located in the trunk -56 cases, upper arm -7, forearm -1, hand -1, thigh -28, leg -7 and the foot-7. The FNAB was diagnosed as benign in 56 (52.3%) cases, malignant in 48 (44.8 %) cases and suspicious of  malignancy in 3(2.8%) cases. The cases were cytomorphologically classified into the following categories: Lipomatous (32 cases), epithelia (18),  spindle cell (14), inflammatory (13) pleomorphic (11), small round (6), myxoid (5), epitheloid/ polygonal (1) and others (7). The sensitivity and specificity of diagnosed cases with FNAB as either benign or malignant when correlated with histology were 95% and 100% respectively.

Conclusion: FNAB is a valuable tool in the initial evaluation of palpable soft tissue lesions especially in primary soft tissue neoplasms and clinically suspected metastatic carcinomas.




http://dx.doi.org/10.11604/pamj.2015.20.44.4271
AJOL African Journals Online