Arterial biopsy of elderly male shows fragmentation of elastic lamina, lymphocyte infiltration and giant cells –
**Core Concept**
Arterial biopsy findings in an elderly male, including fragmentation of elastic lamina, lymphocyte infiltration, and giant cells, are indicative of a specific type of arteritis. This condition is characterized by inflammation of the arterial wall, leading to damage and fragmentation of the elastic lamina.
**Why the Correct Answer is Right**
The presence of lymphocyte infiltration and giant cells in the arterial biopsy is suggestive of Giant Cell Arteritis (GCA), a form of large vessel vasculitis. GCA is a chronic inflammatory condition that primarily affects the aorta and its major branches, particularly in elderly individuals. The fragmentation of elastic lamina is a hallmark feature of GCA, resulting from the inflammatory damage to the arterial wall. The involvement of giant cells, which are multinucleated macrophages, is a key diagnostic feature of GCA.
**Why Each Wrong Option is Incorrect**
**Option A:** This option might be incorrect because the description provided does not match other forms of arteritis, such as Takayasu arteritis, which primarily affects the aorta and its branches but lacks giant cells.
**Option B:** This option might be incorrect because the presence of giant cells is not a characteristic feature of polyarteritis nodosa (PAN), a form of medium vessel vasculitis that typically presents with necrotizing inflammation of small to medium-sized arteries.
**Option C:** This option might be incorrect because the description provided does not match the typical presentation of Kawasaki disease, a form of medium vessel vasculitis that primarily affects children and is characterized by fever, rash, and lymphadenopathy.
**Option D:** This option might be incorrect because the presence of giant cells is not a characteristic feature of rheumatoid arthritis, a systemic autoimmune disorder that primarily affects the joints but can also involve other tissues, including blood vessels.
**Clinical Pearl / High-Yield Fact**
Giant Cell Arteritis is a medical emergency that requires prompt diagnosis and treatment to prevent vision loss and other complications. A high index of suspicion is essential in elderly patients presenting with new-onset headache, jaw claudication, or visual disturbances.
**Correct Answer:** C. Giant Cell Arteritis.