"BL, a 30 year old male, came in with a chief complaint of right foot swelling and redness. Upon interviewing BL, he noted an excruciating pain on the affected site upon waking up this morning, and...

"BL, a 30 year old male, came in with a chief complaint of right foot swelling and redness. Upon interviewing BL, he noted an excruciating pain on the affected site upon waking up this morning, and further disclosed that he and his friends drank lots of beer and tequila last night. Upon inspecting and palpating BL's right foot, you appreciated a significant swelling of the 1st metatarsophalangeal joint which was associated with erythema (redness), warmth, and tenderness (pain). What is the correct diagnosis?"