Which type of arthritis is characterized by joint inflammation?

The correct answer encompasses all types of arthritis, meaning that joint inflammation is a characteristic feature present in osteoarthritis, gout, and psoriatic arthritis.

Osteoarthritis, while primarily thought of as a degenerative joint disease, can indeed involve inflammation in the affected joints, especially as the condition progresses and the body responds to cartilage breakdown.

Gout is an inflammatory type of arthritis that occurs due to the accumulation of uric acid crystals in the joints, leading to acute and severe inflammation, redness, and swelling.

Psoriatic arthritis is an inflammatory arthritis associated with psoriasis and is characterized by joint pain, stiffness, and swelling caused by inflammation.

Therefore, recognizing that all these types involve some degree of joint inflammation is essential in understanding their clinical presentations and differentiating between them in pathophysiology.