Which of the following is the feature of benign tumor?

Appeared in: Chitranjjan National Cancer Institute Kolkata - 2021

Explanation

Benign tumors are characterized by slow, expansile growth, where they push surrounding tissues aside rather than invading them.
A key feature is the presence of a fibrous capsule, which is a rim of compressed connective tissue that encloses the tumor.
This encapsulation makes the tumor a discrete, often movable mass that is clearly demarcated from normal tissue.
The presence of a capsule is a primary reason why benign tumors remain localized and do not metastasize.

Option A: Infiltrative growth is a defining characteristic of malignant tumors, where they invade and destroy adjacent tissues, lacking a clear boundary.
Option B: Metastasis, the spread of tumor cells to distant sites, is the most definitive hallmark of a malignant tumor. Benign tumors do not metastasize.
Option D: Rapid growth is characteristic of malignant tumors. Benign tumors generally grow slowly over a long period.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Characteristics of Benign vs. Malignant Tumors as background academic context rather than a clinical decision trigger.
The encapsulation of benign tumors is clinically significant because it makes them easier to remove surgically with clear margins, leading to a lower rate of recurrence.
Differentiating between benign and malignant features is the foundation of cancer diagnosis and staging, which dictates the entire treatment plan, from surgery to chemotherapy or radiation.
What if? If a benign tumor is unencapsulated (e.g., a hemangioma), it can still be difficult to resect completely because it permeates the tissue, even though it is not malignant.

How to Approach the Question

First, identify the core concept of the question, which is the characteristics of a 'benign tumor'.
Recall the fundamental differences between benign and malignant neoplasms.
Evaluate each option against the definition of a benign tumor.
Option A (Infiltrative growth) is a feature of malignancy. Eliminate it.
Option B (Metastasis) is the hallmark of malignancy. Eliminate it.
Option D (Rapid growth) is typical of malignancy. Eliminate it.

Concept Tested & Keywords

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E6 Pathology- ROBBINS & COTRAN PATHOLOGIC BASIS OF DISEASE 10TH Ed p. 280-282

E6 Pathology-Vandana Puri & Kavita Gaur Textbook of Pathology and Genetics p. 106-108

E6 PATHOLOGY QUICK REVIEWBased on Harsh Mohan Textbook of PATHOLOGY p. 56-58

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