Review Article

Self-Limited Pneumoporta in the Era of Computed Tomography: A Case Report and Review of the Literature

Table 1

Clinical characteristics and outcomes of pneumoporta resolution in reported cases in the literature.

CauseAge (years)SexDetected modalityDuration of pneumoportaFollow-up modalitySurgeryOutcome

Noniatrogenic

Bowel ischemia/necrosis [1922]73FCT3 daysCTYExpired
82FCT24 hoursCTNUneventful
51FCT2 monthsCTYUneventful
86MCT6 daysCTYUneventful
Ischemic colitis [23]61MCT20 daysCTNUneventful
DysmotilitySmall bowel obstruction [24, 25]64FXR7 daysCTYUneventful
61MCT3 hCTNUneventful
Superior mesenteric artery syndrome [26]10FCT48 hCTNUneventful
Infection/inflammationGastroenteritis [1] 58MCT4 daysCTNUneventful
Pyelonephritis [27]56MCT1 monthCTYUneventful
Septic thrombophlebitis [28]52MCT2 monthsCTNUneventful
Terminal ileitis [29] 64FCT18 hoursCTNUneventful
Crohn’s disease [3032]40FCT7 daysCTNUneventful
70MCT2 daysCTNUneventful
26FCT9 hoursCTNUneventful
Retroperitoneal abscess [33, 34]31MCT10 daysCTYUneventful
64MCT3 daysCTY
Medication/toxicity-related conditionsAccidental ingestion of hydrogen peroxide [3537]67MCT24 hoursCTNUneventful
31FCT3 daysCTNUneventful
Caustic ingestion [38]55FCT24 hoursCTNUneventful
Colchicine [39]57MCT4 daysCTNUneventful
OthersGraft-versus-host disease [15, 40]29MCT2 weeksCTNUneventful
52MCT3 weeksCTNExpired (died due to underlying disease)
Pneumatosis cystoides intestinalis [41]94FCT11 daysCTYUneventful

Iatrogenic

Radiofrequency ablation [42]—*—*CT20 minsCTNUneventful
Cryotherapy [43]50MCT24 hoursCTNExpired (portal vein thrombosis and sepsis)
Endoscopy or related procedure [40, 44]26FCT24 hoursXRNUneventful
76MCT2 daysCTNUneventful
Endoscopic balloon dilatation [45]31MCT5 daysCTNUneventful
Esophageal variceal band ligation or endoscopic sclerotherapy [46]77FCT3 daysCTNUneventful
Linton probe insertion [47]54MCT24 hoursCTNUneventful
Barium enema [48]86MCT3 daysCTNUneventful
Oxygen peroxide enema [36]31MCT48 hoursCTNUneventful
Lumbar puncture [49]19FUltrasound4 daysCTNUneventful
Intra-aortic balloon pulsation [50]49CT2 daysUltrasoundNUneventful
Pancreaticoduodenectomy [51]63MCTCT: 18 days; ultrasound: 22 daysCT, ultrasoundNUneventful
Resuscitation [52]25MCT24 hoursCTNUneventful

CT: computed tomography; EUS: endoscopic ultrasound.
—: not mentioned in the literature.
*25 cases were reported.