title: Avascular necrosis of the coccyx: a cause of coccydynia? Case report and histological findings in 16 patients.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D003050:Coccyx / Q000473:pathology / Q000503:physiopathology*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010020:Osteonecrosis / Q000150:complications* / Q000473:pathology; D010146:Pain / Q000209:etiology*