Isolated mesenteric vein thrombosis

What it is

A rare intestinal disease characterized by isolated thrombosis of the mesenteric veins without involvement of the splenic or portal veins, potentially causing mesenteric ischemia. It may be primary/idiopathic or due to one or more local or systemic predisposing conditions, and may be acute/subacute or chronic, the latter being used for patients with symptoms lasting longer than 4 weeks but without bowel infarction, or patients without recent symptoms, where the thrombosis is an incidental finding. Symptoms depend on the extent and severity of thrombosis and often involve prolonged nonspecific abdominal complaints.

Key facts

Prevalence

1-9 / 100 000 (annual incidence, Europe)

Age of onset

Adult, Elderly

Inheritance

Not applicable

Classified as

Disease

Prevalence figures describe populations, not individuals, and are often estimates from a single study. Where the figure is an incidence or a birth prevalence, it says so.

Signs and symptoms

These ranges are how often a sign appears across everyone diagnosed, not a prediction for one person — most people have some of these and not others. Orphanet also records findings that are specifically absent in this disease; those are in the data but not listed here.

ICD-10 codes

Cross-references