The image provided shows yellowish plaques on the eyelids of a patient. This finding is most commonly associated with which of the following conditions?

Explanation

## Image Findings * Bilateral, symmetrical, yellowish, soft, flat-topped plaques on the upper and lower eyelids, predominantly near the inner canthus. ## Diagnosis **Key Point:** The image shows **Xanthelasma Palpebrarum**, which are yellowish plaques on the eyelids, pathognomonic for cutaneous lipid deposition. Xanthelasma palpebrarum are common benign cutaneous lesions characterized by the deposition of **lipid-laden macrophages (foam cells)** in the dermis. Clinically, they present as soft, yellowish, flat-topped papules or plaques, typically located on the medial aspects of the upper and lower eyelids. While often idiopathic, they are frequently associated with **dyslipidemia**, particularly elevated LDL cholesterol and triglycerides, and sometimes with low HDL cholesterol. Therefore, their presence warrants investigation for underlying lipid abnormalities. ## Differential Diagnosis | Feature | Xanthelasma Palpebrarum | Syringoma | Milia | Sebaceous hyperplasia | | :------------------ | :---------------------------------------------------- | :---------------------------------------------------- | :---------------------------------------------------- | :---------------------------------------------------- | | Appearance | Yellowish, soft, flat plaques | Skin-colored to yellowish, small papules | White to yellowish, firm, tiny cysts | Yellowish, dome-shaped papules with central umbilication | | Location | Eyelids, especially medial canthus | Eyelids (lower), chest, axillae | Face (periorbital, cheeks), eyelids | Face (forehead, nose), often solitary or few | | Histology | Lipid-laden macrophages | Ductal differentiation of eccrine sweat glands | Keratin-filled cysts | Enlarged sebaceous glands | | Associated with | Hyperlipidemia | No systemic association | No systemic association | No systemic association | ## Clinical Relevance **Clinical Pearl:** Xanthelasma palpebrarum, while benign, serves as an important **cutaneous marker for underlying dyslipidemia** and increased risk of cardiovascular disease. Patients presenting with xanthelasma should undergo a lipid profile screening. ## High-Yield for NEET PG **High-Yield:** Xanthelasma palpebrarum is the most common form of **xanthoma** and is strongly associated with **hyperlipidemia**, particularly **Type IIa hyperlipidemia (familial hypercholesterolemia)**, though it can occur with normal lipid levels in about 50% of cases. **Key Point:** Histologically, xanthelasma consists of **foam cells** (macrophages filled with lipid vacuoles) in the dermis. ## Common Traps **Warning:** Do not confuse xanthelasma with milia (small, white, keratin cysts) or syringomas (small, skin-colored papules, usually on lower eyelids), which are not typically associated with systemic lipid disorders. ## Reference [cite:Robbins Basic Pathology Ch 11, Harrison's Principles of Internal Medicine Ch 400]