Purpose of the study Medullary osteoid osteoma is exceptional. We report on
e case.
Patient A 15-year-old patient presented osteoid osteoma localized in the me
dullary canal of the tibial shaft, associated with intense medullary and co
rtical hyperosteosis.
Discussion The origin of the osteogenesis in medullary osteoid osteoma coul
d be a localized hemodynamic change involving venous congestion with stimul
ation of periosteal venous drainage.