pneumatosis intestinalis
Pronunciation: /nuːməˈtoʊsɪs ɪnˌtɛstɪˈnælɪs/
Gas within the bowel wall appearing as linear or bubbly lucencies on radiographs, often indicating necrotizing enterocolitis in neonates.
Full Definition
Pneumatosis intestinalis is a radiological finding characterized by the presence of gas within the wall of the intestine, appearing as linear streaks or bubbly lucencies paralleling the bowel contour on plain radiographs. In the neonatal population, pneumatosis intestinalis is most commonly associated with necrotizing enterocolitis (NEC) and represents a serious finding indicating bowel wall compromise. The gas can be located in the submucosa or subserosa and may progress to involve the portal venous system. While pneumatosis can be benign in older children and adults, in neonates it typically indicates significant pathology requiring immediate medical attention.
Usage
Usage note: Distinguish between linear (worse prognosis) and bubbly patterns in descriptions.
In Context
- "Linear pneumatosis intestinalis was evident throughout the small bowel loops." — Neonatal abdominal radiograph report
- "The development of pneumatosis intestinalis prompted immediate surgical consultation." — NICU clinical documentation