Growing bone islands.
D000077:Acetabulum / Q000000981:diagnostic imaging; D000328:Adult; D000368:Aged; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D007085:Ilium / Q000000981:diagnostic imaging; D008297:Male; D008875:Middle Aged; D010023:Osteopoikilosis / Q000000981:diagnostic imaging; D010026:Osteosclerosis / Q000000981:diagnostic imaging* / Q000209:etiology; D011859:Radiography; D012272:Ribs / Q000000981:diagnostic imaging