What is the characteristic finding of gout?

Podagra, which refers to inflammation of the first metatarsophalangeal (MTP) joint, is indeed the most characteristic finding of gout. Gout is a type of inflammatory arthritis caused by the deposition of monosodium urate crystals in the joints due to elevated levels of uric acid in the blood.

The occurrence of podagra is significant because it specifically indicates a typical acute attack of gout, often beginning at night, leading to intense pain, swelling, and redness. This condition often leads to patients seeking immediate medical attention due to the severity of pain associated with the affected joint.

While the other options mention symptoms that can occur in gout, they are not as definitive or characteristic as podagra. Swollen knees and redness and warmth can occur in various other types of arthritis, while asymmetrical joint involvement is a more general description that could refer to several inflammatory conditions. In contrast, podagra is closely associated with gout and helps in making a timely diagnosis.