Key Clinical Message
Open occult pelvic fractures in female perineal area are exceptionally rare and can be easily overlooked. If pelvic CT indicates the presence of the ’free black air bubble sign’ and ’fracture blade sign’, it is crucial to conduct a meticulous perineal physical examination and colposcopy. Immediate colostomy enhances treatment outcomes.
MeSH Keywords: Open pelvic fractures, Open acetabular fractures, Occult fractures, Perineal area injuries