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Intra-articular knee arborescent lipoma: a case treated with arthroscopic synoviectomy

Aymen Saidi
Lassaad Hassini
Aymen Fekih
Monia Ben Othmen
Mohamed Allagui
Abderrazek Abid
Issam Aloui


Arborescent lipoma is an unusual intra-articular lesion that typically develops in the knee and has to be evoked before chronic effusion. It corresponds to hyperplasia of mature fatty tissue and hypertrophy of synovial villi, developing within a joint. The reference treatment is synovectomy by arthrotomy. The rare forms localized to the anterior compartment of the knee can benefit from an arthroscopic synovectomy. The
authors report a case of arborescent knee lipoma in a 47-year-old patient who received arthroscopic synoviectomy. To our knowledge, only a few cases of arborescent lipoma treated by arthroscopic synoviectomy have been reported in the literature.

Key words: Arborescent lipoma, knee, synoviectomy, arthroscopic