Mc Callum’s patch is diagnostic of-
**Core Concept**
McCallum's patch is related to the **endometrium** and is a significant finding in certain **gynecological conditions**. It is a type of **endometrial lesion**. The underlying principle involves the **pathological changes** in the endometrium.
**Why the Correct Answer is Right**
McCallum's patch is a characteristic finding in **endometriosis**, particularly in the context of **endometrial implants**. The patch refers to a specific type of **reactive change** seen in the endometrium.
**Why Each Wrong Option is Incorrect**
**Option A:** This choice is incorrect as it does not relate to the specific pathological change seen in McCallum's patch.
**Option B:** Similarly, this option does not accurately describe the condition associated with McCallum's patch.
**Option D:** This choice is also incorrect as it is unrelated to the endometrial changes characteristic of McCallum's patch.
**Clinical Pearl / High-Yield Fact**
McCallum's patch is a memorable finding for **endometriosis**, especially when considering **pelvic pain** and **infertility**.
**Correct Answer:** D. Endometriosis