Table 1. Summary of case reports of the auricular tophi

Date	Age/sex	Past medical history	Gout history (year)	Medication	Site	Size (mm)	Chief complaint	Treatment
20091)	47/M	Hypercholesterolemia alcohol abuse		Lovastatin, NSAIDs	H, AH, B, M	2-10	6-month history of increasing numbers and size. painful	Excisional Bx, allopurinol
19832)	46/M	Rheumatoid arthritis for 18 years		Aspirin & prednisolone.After taking penicillamine 6 months, he developed proteinuria,	AH		A chalky deposit	Excisional Bx
20193)	Middle aged/M	Hepertension drinking habit	10		AH	Large	Pain by friction
20135)	48/M		1		H, M		White bumps	Curettage
20137)	64/M	Lung tuberculosis		Antituberculosis therapy	H, B, M	2.5	6-month history of painless	Excisional Bx
20108)	20/M	Non-alcoholic	(+)		H	10-15	1.5-years of painful nodules	Fine needle aspiration cytology
20169)	70/M	Multiple sunburns			H	5	Firm flesh-colored nodule	Shave Bx, Mohs surgery.
201410)	51/M				H		Painful for lyear	Shave Bx
	58/M		1		H	10	Painless	Shave Bx
	85/M				H	8	Painless	Bx
201111)	66/M	Arthritis at 43 YO finger’s tophi at 59 YO	(+)		H			Aspiration
201712)	36/M		10		AH	6	Pain, tenderness	Excisional Bx
201613)	40/M	Diabetes mellitus	0.5		H, B, M	1-4	Firm and well circumscribed	Shave Bx
201314)	49/M	Alkaptonuria, SLE complicated with nephrotic syndrome, metabolic syndrome	Recently	Bumetanide urate-lowering therapy	AH		Grey-black darkening of auricular cartilage (alkaptonuria)

M: male, NSAIDs: nonsteroidal anti-inflammatory drugs, H: helix, AH: antihelix, B: both, M: multiple, (+) : positive, Bx:biopsy, YO: years old