Ossifying hæmatoma of the femur, following contusion

Abstract

a dilated pelvis was clearly outlined, and all the calices could be seen a t the periphery. Retween pelvis and calices, however, was a large irregular filling deficiency. The accompanying reproduction of the photograph (Fig. 219) is less convincing than the original film, and it has been necessary to outline the denser parts of the shadow in order to demonstrate the deficiency. Clearly no part of the pelvis had been completely obliterated, as by a hypernephroma or carcinoma, since all the calices had been normally filled, and there was no destruction of kidney substance as by an open tuberculous lesion.The kidney was removed on March 9, 1926, and the condition was found to be as shown in the drawing (Fig. 220). The pelvis was partially filled by a diffuse villous growth, the main mass corresponding exactly to the filling deficiency seen in the skiagram. Sections showed the usual structure of a papilloma, and one from the base (Fig. 221) demonstrated that it was histologically innocent, no infiltration being found.One half of the specimen is in the museum of St. Bartholomew's Hospital ; the other is a t the Royal College of Surgeons.