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 Indian J Med Microbiol  
 

Figure 1: A nine years old boy with discharging wound of right knee. Foreign body is not visible in the radiograph but it appears as an echogenic linear structure (arrow) with hypoechoic halo in USG. Surgical exploration revealed a 38 mm thorn (arrow)

Figure 1: A nine years old boy with discharging wound of right knee. Foreign body is not visible in the radiograph but it appears as an echogenic linear structure (arrow) with hypoechoic halo in USG. Surgical exploration revealed a 38 mm thorn (arrow)