**Question:** Following statements are true with respect to hyperplasia except

A. Hyperplasia is a pathological process involving excessive cell division in an organ or tissue.
B. Hyperplasia is always benign and does not lead to cancer.
C. Hyperplasia is a rare condition and occurs in only a few cases.
D. Hyperplasia is a condition limited to the skin and mucous membranes only.

**Correct Answer:** D. Hyperplasia is a condition limited to the skin and mucous membranes only.

**Core Concept:**
Hyperplasia is a pathological process characterized by the excessive proliferation of cells within an organ or tissue. This leads to an increase in the number of cells without causing a change in the size or shape of the cells themselves. Unlike hyperplasia, hypertrophy involves an increase in cell size and/or number, often due to mechanical forces or hormonal factors.

**Why the Correct Answer is Right:**
Hyperplasia is a benign condition, meaning it is generally non-malignant and does not involve the formation of new tissue layers or the development of cancer. Options A and B address this core concept accurately as they both describe the nature of hyperplasia as excessive cell division and its benign nature, respectively.

**Why Each Wrong Option is Incorrect:**
Option C is incorrect because hyperplasia can occur in various tissues throughout the body, not just the skin and mucous membranes. While it may be less common than other pathological processes, hyperplasia is not limited to these specific locations.

Option D is incorrect because hyperplasia can affect tissues and organs beyond the skin and mucous membranes. Examples include thyroid hyperplasia, liver fibrosis, and prostate hyperplasia, among others.

**Clinical Pearl:**
Understanding the difference between hyperplasia and hypertrophy is crucial in clinical practice. These conditions often coexist in various organs, and misdiagnosis can lead to inappropriate treatments and potential complications. A thorough examination of the affected organ system and knowledge of tissue responses to various stimuli are essential for accurate diagnosis.