1. A series of thirty-two cases of chondromyxoid fibroma is reported.

2. The clinical, radiographic and pathological features are described.

3. The rarity of the tumour and of malignant change is stressed.

4. Excision or block resection is preferred to curettage as a method of treatment, because of the liability to recurrence after curettage.

5. It is suggested that the designation "fibromyxoid chondroma" is more appropriate than the usual designation "chondromyxoid fibroma".

1. Two cases are described in which increased density of the lower femoral epiphysis was due to sarcoma.

2. In one of these, multiple sarcomata were present.

1. In growing rats oestrogen, cortisone and thyroxine in high doses suppress bone formation, and this effect is probably part of a general suppression of body growth.

2. Growth hormone and thyroxine in small doses stimulate both body growth and bone formation.

3. Testosterone has no effect on bone formation.

4. Oestrogen and cortisone suppress bone resorption. The effect of cortisone may be modified in conditions of calcium depletion.

5. Thyroxine appears on the other hand to increase bone resorption.

6. Testosterone has no effect on bone resorption.

A case of synovial sarcoma of the humerus is described. The histological features were of an undifferentiated character and the tumour arose in the foetus.

Fourteen patients with dystrophia myotonica and a post-mortem report of another case are reported. All had radiological or other evidence of abnormalities of the skull. The most constant were a thickened calvarium, hyperostosis interna, small to very small pituitary fossa and extensive sinuses. It is believed that the high incidence of these changes cannot be coincidental and it is held that they should be accepted as some of the variable features of dystrophia myotonica.

A total of 63 women who had an operation for a fracture of the hip was randomly allocated to one year of treatment either with anabolic steroids, vitamin D and calcium (anabolic group) or with calcium only (control group). The thigh muscle volume was measured by quantitative CT. The bone mineral density of the hip, femur and tibia was assessed by quantitative CT and dual-energy x-ray absorptiometry and of the heel by quantitative ultrasound. Quantitative CT showed that the anabolic group did not lose muscle volume during the first 12 months whereas the control group did (p< 0.01). There was less bone loss in the proximal tibia in the anabolic group than in the control group. The speed of gait and the Harris hip score were significantly better in the anabolic group after six and 12 months. Anabolic steroids, even in this moderate dose, given in combination with vitamin D and calcium had a beneficial effect on muscle volume, bone mineral density and clinical function in this group of elderly women

It is not uncommon to observe bone cement in the pelvis on radiographs after total hip replacement, a finding which is generally considered to be benign. This paper reviews some catastrophic late complications from intrapelvic methylmethacrylate. We also describe a case of progressive, unbearable dyspareunia beginning three years after total hip replacement. A possible explanation of the pathophysiology is suggested. Recommendations for prevention, diagnosis, and treatment of these late complications are offered