tophus

• 医学上指尿酸盐结晶沉积在关节周围或外耳等处形成的结节，常见于慢性或晚期痛风；也指可在牙齿或牙龈上形成的结石样沉积物。

A medical term for a deposit of urate crystals that forms around joints or in the external ear, characteristic of advanced or chronic gout; also refers to an incrustation that can form on teeth and gums.

1. Gout depositC2formalmedical

   A deposit of urate crystals that forms around a joint or in the external ear, characteristic of advanced or chronic gout.

   痛风石

   • The patient developed a tophus on his elbow after years of untreated gout.
   • Doctors identified a tophus in the cartilage of the ear.
   • Chronic gout can lead to the formation of a tophus in various joints.

   同义词chalkstone

2. C2formalmedical

   A hard, mineralized deposit that forms on the teeth and gums, also known as dental calculus or tartar.

   牙结石

   • The dentist removed a tophus from the patient's lower incisors.
   • Poor oral hygiene can lead to the buildup of tophus on the teeth.
   • Regular brushing helps prevent the formation of tophus on the gums.

   同义词calculustartar