Raised serum ferritin is seen in –
The core concept here is understanding the causes of hyperferritinemia. The main ones are hemochromatosis, chronic inflammation, liver disease, and alcohol abuse. Also, acute phase reactants can increase ferritin during inflammation.
For the correct answer, if the options include hereditary hemochromatosis, that's likely the right choice. Hereditary hemochromatosis is a genetic disorder leading to excessive iron absorption, causing tissue iron overload and elevated ferritin. It's an autosomal recessive condition linked to mutations in the HFE gene.
Now, the incorrect options. If any option is sideropenic anemia, that's wrong because ferritin would be low. If there's acute inflammation like rheumatoid arthritis, ferritin might be elevated as an acute phase reactant, but that's a different mechanism. Liver cirrhosis could be a distractor since liver damage affects iron metabolism, but the primary condition is still hemochromatosis. Alcohol abuse can cause liver damage leading to increased ferritin, but it's not the main cause compared to hemochromatosis.
Clinical pearls: Remember that while ferritin is a marker of iron stores, it's also an acute phase reactant. So, in chronic diseases, ferritin can be high even without iron overload. The key is to look at other parameters like TIBC and serum iron.
Putting it all together, the correct answer is hereditary hemochromatosis. The explanation should highlight the genetic basis and the pathophysiology leading to elevated ferritin. The other options need to be addressed for why they don't fit as well. Make sure the clinical pearl emphasizes the difference between iron overload and inflammation as causes of elevated ferritin.
**Core Concept**
Serum ferritin is a sensitive marker of body iron stores and an acute-phase reactant. Elevated levels are most commonly associated with iron overload disorders, chronic inflammation, or tissue damage. Hereditary hemochromatosis, caused by HFE gene mutations, is the classic cause of pathologic iron accumulation.
**Why the Correct Answer is Right**
Hereditary hemochromatosis leads to excessive intestinal iron absorption due to defective hepcidin regulation. This results in iron deposition in parenchymal organs (liver, pancreas, heart) and markedly elevated serum ferritin. The condition is autosomal recessive, with C282Y and H63D mutations in the HFE gene being most common. Ferritin levels >300 ng/mL in men and >200 ng/mL in women (postmenopausal) raise suspicion, especially with transferrin saturation >45%.
**Why Each Wrong Option is Incorrect**
**Option A:** Iron-deficiency anemia is characterized by *low* serum ferritin (<15 ng/mL), not elevated.
**Option B:** Chronic kidney disease may cause anemia but does not increase ferritin unless there is comorbid inflammation or iron overload.
**Option C:** Thalassemia minor typically presents with microcytic anemia and *normal* or *low* ferritin due to