Dalrymple’s sign is seen in-
**Core Concept**
Dalrymple's sign is a clinical sign associated with **thyrotoxicosis**, particularly in patients with **Graves' disease**. It is characterized by the retraction of the upper eyelid. This sign is an important indicator of the disease's severity and is often assessed during physical examination.
**Why the Correct Answer is Right**
The correct answer is related to the manifestation of **Graves' disease**, which is an autoimmune disorder that leads to **hyperthyroidism**. Dalrymple's sign is one of the several signs that can be observed in patients with this condition, alongside others like **von Graefe's sign** and **Stellwag's sign**. The retraction of the upper eyelid in Dalrymple's sign is thought to be due to the increased sympathetic activity and the infiltration of the eyelid tissues by inflammatory cells.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because it does not relate to the specific condition associated with Dalrymple's sign.
**Option B:** Similarly, this option does not accurately describe the condition linked with Dalrymple's sign.
**Option D:** This option is also incorrect as it does not correspond to the clinical context in which Dalrymple's sign is observed.
**Clinical Pearl / High-Yield Fact**
Dalrymple's sign is a significant finding in patients with **Graves' disease**, indicating the need for prompt evaluation and management of **thyrotoxicosis**. Recognizing this sign can help clinicians diagnose and treat the underlying condition effectively.
**Correct Answer:** C. Graves' disease.