**Core Concept**
Hemochromatosis is a genetic disorder characterized by excessive iron accumulation in the body, leading to tissue damage and organ dysfunction. This condition is caused by mutations in the HFE gene, which regulates iron absorption in the small intestine.

**Why the Correct Answer is Right**
Hemochromatosis presents with a wide range of symptoms due to iron overload in various organs. The classic symptoms include skin bronzing (hyperpigmentation), hepatomegaly (enlarged liver), cardiac arrhythmias, and endocrine disorders such as hypogonadism (reduced sex hormone production) and hypothyroidism. The iron overload also leads to pancreatic damage, resulting in diabetes mellitus.

**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect as hemochromatosis does indeed present with cardiac arrhythmias due to iron deposition in the cardiac muscle. This can lead to conditions such as atrial fibrillation and congestive heart failure.
**Option B:** This option is incorrect as hemochromatosis presents with skin bronzing, which is a characteristic skin manifestation of the disease.
**Option C:** This option is incorrect as hemochromatosis does indeed present with liver enlargement (hepatomegaly) due to iron deposition in the liver, leading to liver fibrosis and cirrhosis.

**Clinical Pearl / High-Yield Fact**
It is essential to note that hemochromatosis is a hereditary disorder, and patients may remain asymptomatic until iron overload is significant. Regular screening for iron overload is crucial in early detection and management of the disease.

**Correct Answer:** D