Summary of clinical and imaging findings
| Case | Patient Age/Sex | Signs of Edema* | Attenuation Value (HU)† | Proof‡ | Diagnosis at Death or Discharge§ |
|---|---|---|---|---|---|
| 1 | 5 y/M | C, E | NA | Autopsy result | Diffuse cerebral edema secondary to hyponatremia |
| 2 | 37 y/F | C, E, GW | NA | Autopsy result | Sudden cardiac death, anoxic injury |
| 3 | 22 y/M | C, E | NA | Negative LP result | Pseudo-tumor cerebri |
| 4 | 22 y/F | C, E | NA | Autopsy result | DKA with hypoxic and metabolic encephalopathy |
| 5 | 8 mo/F | E, GW | 29 | Negative LP result | Diffuse cerebral edema, SIDS |
| 6 | 5 y/M | C, E, GW | 33 | Negative LP result | Cardiopulmonary failure secondary to unknown metabolic disorder (possibly Leigh disease) |
| 7 | 6 y/M | C, E, GW | 29 | Negative LP result | Septic Shock |
* C indicates compression and/or mass effect on the fourth ventricle; E, effacement of the basal cisterns and cortical sulci; GW, decreased gray matter–white matter differentiation.
† Mean attenuation levels were obtained with a region of interest drawn in the basal cisterns. NA indicates not available.
‡ LP indicates lumbar puncture.
§ DKA indicates diabetic ketoacidosis; SIDS, sudden infant death syndrome.