On histopathological examination of the liver from a chronic alcoholic, the following image is observed. Which special stain is the best choice to confirm the diagnosis?

1. A

   A. Gomori Methenamine Silver (GMS)

2. B

   B. Periodic Acid Schiff (PAS)

3. C

   C. Masson Trichrome

4. D

   D.Gram stain

Appeared in: INI-CET EXAM -2026

Explanation

• The image displays liver cirrhosis, a condition defined by extensive fibrosis (scarring).
• Masson Trichrome is the specific stain used in histology to visualize collagen fibers, which are the main component of fibrous scar tissue.
• It stains collagen a distinct blue color, which contrasts sharply with the red/pink staining of hepatocytes (liver cells), allowing for clear assessment of the extent of fibrosis.
• This staining pattern confirms the diagnosis of cirrhosis by highlighting the fibrous septa seen in the image.

Why Other Options Were Wrong

• Option A: Gomori Methenamine Silver (GMS) stain is used to identify fungal organisms and certain bacteria, not tissue components like collagen.
• Option B: Periodic Acid Schiff (PAS) stain highlights glycogen, neutral mucosubstances, and basement membranes. While it has uses in liver pathology, it does not specifically stain the fibrous bands of cirrhosis.
• Option D: Gram stain is a fundamental microbiological technique used to classify bacteria as Gram-positive or Gram-negative. It is not used for tissue histology.

Related Visual

Clinical Relevance

• Nursing practice connection: Use the key finding related to Application of special histological stains in the diagnosis of liver pathology, specifically cirrhosis to guide bedside assessment, documentation, and the next nursing action.
• Confirming and staging liver fibrosis is critical for patient prognosis and management. The extent of fibrosis determines the risk of complications like portal hypertension, liver failure, and hepatocellular carcinoma.
• As a nurse, understanding the diagnostic process helps in patient education about the severity of their liver disease and the importance of lifestyle changes, such as alcohol cessation.
• What if the patient was not a chronic alcoholic but had chronic hepatitis C? The end-stage pathology would still be cirrhosis, and Masson Trichrome would still be the correct stain to assess the degree of fibrosis.

How to Approach the Question

• First, analyze the image and the clinical information. The image shows liver tissue with nodules and fibrous bands, and the history is chronic alcoholism. This strongly suggests liver cirrhosis.
• Next, identify the core question. The question asks for the best special stain to confirm the diagnosis.
• The key pathological feature of cirrhosis is fibrosis (scarring). Therefore, the goal is to find the stain that highlights fibrous tissue (collagen).
• Recall the primary uses of the stains listed in the options.
• Evaluate each option: GMS is for fungi, PAS is for glycogen/glycoproteins, and Gram stain is for bacteria.
• Recognize that Masson Trichrome is the classic stain for collagen, which appears blue, contrasting with other tissue elements. This directly addresses the need to confirm fibrosis.

Concept Tested & Keywords

• Concept Tested: Application of special histological stains in the diagnosis of liver pathology, specifically cirrhosis.
• Stem keywords: histopathological examination, liver, chronic alcoholic, special stain
• Lead-in keywords: best choice
• Clinical cues: The patient history of chronic alcoholism points towards alcoholic liver disease, with cirrhosis being the end-stage.
• Clinical cues: The image shows nodular architecture with surrounding fibrous bands, a hallmark of cirrhosis.

Question ID

Qfs218Csrlgwm3Bg-sejaL

Copy ID

Reference Book

E6 Pathology-Textbook of PATHOLOGYHarsh Mohan Part 3 (515-969) pp. 112-114, 111-113