Congenital absence of the medial meniscus associated with lipoma arborescens.
Congenital abnormalities of the medial meniscus are extremely rare and have been reported commonly with other deformities. We report an isolated aplasia of the medial meniscus. A 37-year-old man presented with a slow-growing painless swelling, accompanied by intermittent effusion of his left knee. Magnetic resonance imaging demonstrated frond-like proliferations of fatty synovium. He was initially diagnosed with synovial chondromatosis, but later found to have lipoma arborescens. While an arthroscopic synovectomy was being performed, congenital absence of the medial meniscus was discovered as an incidental finding.
Utkan
Ali
A
Department of 2nd Orthopedics and Traumatology, Ankara Numune Research and Training Hospital, Turkey. utkana@yahoo.com
Ozkan
Güray
G
Köse
Cem Cüneyt
CC
Ciliz
Deniz Sözmen
DS
Albayrak
Ahmet Levent
AL
D000328:Adult; D006801:Humans; D008067:Lipoma / Q000150:complications / Q000473:pathology*; D008279:Magnetic Resonance Imaging; D008297:Male; D008592:Menisci, Tibial / Q000002:abnormalities*; D012983:Soft Tissue Neoplasms / Q000150:complications / Q000175:diagnosis / Q000473:pathology*; D013583:Synovial Membrane / Q000473:pathology*