microcrystals of monosodium urate , triclinic and monoclinic calcium pyrophosphate dihydrate , apatite , calcium hydrogen phosphate dihydrate and corticosteroids , among others , have been found in synovial fluid , in the intraarticular tissues ( fibrocartilage , cartilage , and synovial membrane ) , and in the periarticular tissues ( tendons and ectopic calcifications ) .
C0684077
fibrocartilage
C0007301
cartilage