Tubercular Enlai^gement. 283 



and there is some new bone on the surface. This has evidently 

 been a case of tuberculosis of the knee-joint, which has healed 

 with extensive distortion. It was formerly described as " spina- 

 ventosa." 



There is a peculiar crack in front of the specimen, for 

 which it is difficult to account. As there is some new bone 

 over and near it, it may have been caused in an attempt to 

 straighten the limb. F. P. C. 650. 



Presented by Professor John Thomson. 



6.211. Tubercular Enlargement of the Lower End of 



the Tibia. — Lower end of a right tibia — macerated, illustrating 

 the above. 



Several apertures seen in the expanded shell communicated in the 

 recent condition with an abscess in the soft parts. 



There has been enlargement on the surface, and absorption 

 within. The interior of the bone has an irregularly scooped- 

 out appearance. The disease has probably been tubercular. 



W. C. G. 27. 



6. 212. Tubercular Abscess and Enlargement of the Lower 



End of the Tibia. — Section of part of a left foot and lower 

 end of the tibia — macerated, illustrating the above. 



' ' Mrs A. , aged 43, a delicate, nervous woman, suffered from suppurating 

 cervical glands several years ago ; her family and personal history was other- 

 wise good. Three years ago pain began in the left loin, and extended down 

 gradually to left ankle, and remained there for three months. It subsided 

 completely, but returned in a few months, as result of a blow on the ankle. 

 An abscess formed and was opened, and healed after discharging for a few 

 months. The abscess opened again, and was relieved by carbolic acid 

 fomentations, but returned one month before admission to the Infirmary. 

 The patient was able to walk until within a week of admission, though 

 with difficulty. The large abscess cavity of tibia was opened into, and 

 caseous matter was scraped out. In fourteen days pain spread to ankle, 

 and amputation became necessary." 



The specimen shows the abscess in the tibia laid open. 

 The walls at the bottom are covered by bare and dead (non- 



