Which statement best describes congestive splenomegaly?

Which statement best describes congestive splenomegaly?

• A. Enlargement of the spleen due to congestion from portal hypertension and congestive processes
• B. Primary tumor of the spleen
• C. Spleen with decreased size
• D. Autoimmune destruction of splenic tissue

Answer: (A)

Congestive splenomegaly occurs when the spleen enlarges because blood flow out of it is impeded, leading to venous congestion. The most common cause is portal hypertension, where increased pressure in the portal venous system backs up into the splenic vein. This backpressure fills the splenic red pulp with blood, causing the spleen to enlarge and often become more susceptible to pooling and hypersplenism (which can lower blood cell counts). In imaging, you’d see an enlarged spleen and signs consistent with portal hypertension, such as a dilated splenic vein and other portal-systemic changes. This description contrasts with a primary splenic tumor (a discrete mass, not a diffuse enlargement from congestion), splenic atrophy or decreased size, and autoimmune destruction of splenic tissue (which would reflect loss or damage of tissue rather than enlargement from congestion).

Congestive splenomegaly occurs when the spleen enlarges because blood flow out of it is impeded, leading to venous congestion. The most common cause is portal hypertension, where increased pressure in the portal venous system backs up into the splenic vein. This backpressure fills the splenic red pulp with blood, causing the spleen to enlarge and often become more susceptible to pooling and hypersplenism (which can lower blood cell counts). In imaging, you’d see an enlarged spleen and signs consistent with portal hypertension, such as a dilated splenic vein and other portal-systemic changes.

This description contrasts with a primary splenic tumor (a discrete mass, not a diffuse enlargement from congestion), splenic atrophy or decreased size, and autoimmune destruction of splenic tissue (which would reflect loss or damage of tissue rather than enlargement from congestion).