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 Indian J Med Microbiol  
 

Figure 1: Coronal MERGE (gradient) MR image of the shoulder joint demonstrating radiological signs in a unicameral bony cyst involving the proximal humerus in a 12-year-old boy. Note the meta-diaphyseal location of the cyst with no extension across the epiphyseal plate. Linear hypointense focus is seen in the dependent position indicating “Fallen fragment sign” (red arrow). Endosteal scalloping (pink arrow) and internal septation (green arrow) is being demonstrated. Note the periosteal elevation with collection demonstrating blood-fluid level (blue arrow)

Figure 1: Coronal MERGE (gradient) MR image of the shoulder joint demonstrating radiological signs in a unicameral bony cyst involving the proximal humerus in a 12-year-old boy. Note the meta-diaphyseal location of the cyst with no extension across the epiphyseal plate. Linear hypointense focus is seen in the dependent position indicating “Fallen fragment sign” (red arrow). Endosteal scalloping (pink arrow) and internal septation (green arrow) is being demonstrated. Note the periosteal elevation with collection demonstrating blood-fluid level (blue arrow)