**Core Concept**
Behcet's disease is a form of vasculitis that affects multiple organ systems, including the eyes, skin, mucous membranes, joints, and gastrointestinal and genitourinary tracts. It is characterized by inflammation and damage to blood vessels (vasculitis) of various sizes, leading to a range of clinical manifestations.

**Why the Correct Answer is Right**
Behcet's disease typically spares the lungs, unlike other forms of vasculitis such as Wegener's granulomatosis or polyarteritis nodosa. The lungs are not a common site for Behcet's disease-related vasculitis, which helps differentiate it from other vasculitic disorders. This is due to the specific involvement of mucocutaneous and ocular vessels in Behcet's disease, rather than the pulmonary vasculature.

**Why Each Wrong Option is Incorrect**
**Option A:** This option cannot be evaluated without knowing the specific organ being referred to.
**Option B:** This option cannot be evaluated without knowing the specific organ being referred to.
**Option C:** This option cannot be evaluated without knowing the specific organ being referred to.

**Clinical Pearl / High-Yield Fact**
Behcet's disease is more common in individuals of Middle Eastern, Mediterranean, or East Asian descent, and it often presents with oral aphthous ulcers and genital ulcers. Recurrent uveitis and retinal vasculitis are common ocular manifestations, leading to significant visual impairment if left untreated.

**Correct Answer:** C.