In cirrhosis the space of Disse is filled with?

NVS Staff Nurse - 2022

Medical Surgical Nursing

Easy

Appeared in: NVS Staff Nurse - 2022

Explanation

In cirrhosis, chronic liver injury leads to the deposition of scar tissue (fibrosis) in the Space of Disse.
This process is driven by the activation of hepatic stellate cells, which transform into myofibroblasts and secrete large amounts of collagen.
The accumulation of this scar tissue disrupts the normal liver architecture and function.
This fibrosis obstructs the exchange of nutrients and waste products between the blood in the sinusoids and the hepatocytes, contributing to liver failure.

Option A: Parenchyma refers to the functional cells of an organ, which in the liver are the hepatocytes. In cirrhosis, these cells are damaged and surrounded by scar tissue, not filling the Space of Disse.
Option B: Incisional tissue is scar tissue that forms as a result of a surgical cut. Cirrhosis is a medical condition caused by chronic liver disease, not surgery.
Option C: Epithelial tissue forms linings and glands. While the liver contains epithelial cells (hepatocytes and bile duct cells), the pathological material filling the Space of Disse is fibrous connective tissue, not epithelial tissue.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Pathophysiology of liver cirrhosis and the role of the Space of Disse as background academic context rather than a clinical decision trigger.
Understanding that the Space of Disse is filled with scar tissue explains the pathophysiology of portal hypertension, a major complication of cirrhosis. The fibrosis increases resistance to blood flow through the liver.
This knowledge is crucial for patient education, explaining why lifestyle changes (like abstaining from alcohol) are vital to prevent further scarring and progression of liver failure.
Nursing care for cirrhotic patients involves managing complications like ascites, variceal bleeding, and hepatic encephalopathy, all of which stem from the architectural disruption caused by fibrosis.

How to Approach the Question

First, identify the key terms in the question: 'cirrhosis' and 'Space of Disse'.
Recall the basic pathophysiology of cirrhosis. Cirrhosis is defined as the end-stage of chronic liver disease, characterized by extensive fibrosis (scarring) and the formation of regenerative nodules.
Remember the microanatomy of the liver. The Space of Disse is the perisinusoidal space between hepatocytes and the sinusoids.
Connect the pathophysiology to the microanatomy: The defining feature of cirrhosis is the deposition of fibrous tissue. This process specifically occurs in the Space of Disse, where hepatic stellate cells deposit collagen.
Evaluate the options. 'Scar tissue' is another term for the fibrous tissue that characterizes cirrhosis, making it the correct answer. The other options refer to different types of tissue not involved in this specific pathological process.

Concept Tested & Keywords

Concept Tested: Pathophysiology of liver cirrhosis and the role of the Space of Disse.
Stem keywords: cirrhosis, space of Disse
Lead-in keywords: filled with

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E6 Pathology- ROBBINS & COTRAN PATHOLOGIC BASIS OF DISEASE 10TH Ed pp. 827-829, 826-828