Common
Bladder, emphysematous cystitis
Cecal distension, obstructive or nonobstructive
Gastric obstruction
Pneumoperitoneum, free or loculated
Volvulus of stomach, small bowel, or colon
Uncommon
Abdominal wall gas (postoperative, abscess)
Amnionitis, endometritis
Blind loop syndrome
Duplication
Hernia, obstructed
Hydropneumometrocolpos, vaginitis emphysematosa
Infected fibroid
Liver abscess or gangrene
Meckel diverticulum, giant colon diverticulum
Pancreatic gas abscess
Pregnancy, extrauterine, with perforation into colon
Psoas abscess
Small-bowel obstruction, chronic
Subphrenic abscess
Tubo-ovarian abscess
Diagnosis
Tubo-ovarian abscess
Comment
A 47-year-old woman, gravida 6, para 4, abortus 2, was admitted to the hospital because of abdominal pain and a large abdominal mass. She had a temperature of 39 C (102 F) and a white blood cell (WBC) count of 13,300/cu mm. The abdominal mass was palpable from the pelvis extending two to three fingerbreadths above