**Core Concept:**
Massive aminoaciduria refers to the excessive excretion of amino acids in the urine, while a corresponding increase in plasma amino acid level indicates normal or reduced excretion. Aminoaciduria can be due to various renal diseases or disorders affecting amino acid transport across renal tubules. Understanding the concept of amino acid transport will help in identifying the correct disease entity.

**Why the Correct Answer is Right:**
The correct answer is **Option D: Alpers Syndrome**. Alpers Syndrome is a rare, progressive, and ultimately fatal disorder affecting the liver, brain, and kidneys. It is caused by mutations in the SLC25A13 gene, which encodes for a mitochondrial protein involved in the transport of amino acids across the inner mitochondrial membrane. In Alpers Syndrome, the defective protein leads to impaired amino acid uptake in the liver and renal tubules, causing massive aminoaciduria (excessive excretion of amino acids in urine) and hypoaminoacidemia (low plasma amino acid levels), despite normal or reduced renal uptake.

**Why Each Wrong Option is Incorrect:**

A. **Option A (Mitochondrial Encephalopathy, Lactic Acidosis, and Stroke-like episodes):** This condition is characterized by lactic acidosis, encephalopathy, and recurrent stroke-like episodes due to mitochondrial dysfunction. Although it presents with aminoaciduria, the corresponding increase in plasma amino acid levels is seen, making it an incorrect answer.

B. **Option B (Lysosomal Storage Disorders):** These disorders are characterized by the accumulation of specific substrates due to lysosomal enzyme deficiencies. While lysosomal storage disorders can present with aminoaciduria, the corresponding increase in plasma amino acid levels is typically observed in these conditions. Therefore, Option B is incorrect.

C. **Option C (Hepatic Encephalopathy):** Hepatic encephalopathy is a neuropsychiatric disorder caused by liver failure, leading to impaired amino acid clearance from the bloodstream. While hepatic encephalopathy can present with aminoaciduria, a corresponding increase in plasma amino acid levels is typically seen in this condition. Hence, Option C is incorrect.

**Clinical Pearl:**
Alpers Syndrome is a rare clinical entity characterized by progressive liver disease leading to impaired amino acid transport and subsequent aminoaciduria and hypoaminoacidemia. This disorder is essential to recognize as it presents with hypoaminoacidemia, which is contrary to the expected pattern in other conditions like hepatic encephalopathy, lysosomal storage disorders, and mitochondrial disorders.