There is a large collection of pus in the medullary cavity of the shaft of the femur. This patient died from acute leukaemia, and the infection resulted from her immune deficiency state.
Acute osteomyelitis
Resected femur from a person with chronic osteomyelitis. Necrotic bone (the sequestrum) visible in the center of a draining sinus tract is surrounded by a rim of new bone (the involucrum).
Chronic osteomyelitis
Osteomyelitis: fenestrations of bone
A. This child is grossly emaciated from the disseminated infection. The deformity in the lumbar region is characteristic of involvement of the lumbar vertebrae by tuberculous infection. The diseased vertebrae 'collapsed‘B. X-ray of the child shown in A. The collapsed lumbar vertebrae are easily seen. Tuberculosis of the spine (Pott disease)Rt. Tuberculosis in the spine of a young boy (Pott's fracture of the vertebrae). Lt, Tuberculous psoas abscess. Two lumbar vertebrae involved by tuberculosis with extension of the caseation into the psoas muscle. When such infection spreads along the psoas, the abscess may 'point' in the groin.
Tuberculosis of the spine (Pott disease)