548 Diseases of Bitrsce. 



in. Inflammatory Diseases. 

 1. Where the inflammation has been due to mechanical injtiry. 



9. 15. Simple Chronic Inflammation of the Bursa PatellsBa 



— " Housemaid's-knee." Patella and ligamentum patellae, with 

 thickened biirsae over it — laid open, in spirit. 



The walls are thickened, and are apparently lined with 

 lymph, in process of organisation. B.C. 2. M. 23. 



2. Where the inflammation has been due to action of pus-forming organisvis. 



Specimens Avanted. 



3. Where the inflammation is due to the action of the tubercle bacillus. 



9. 16. Enlarg-ement of Bursa Patellae, probably 



Tubercular. — Enlarged and somewhat thickened bursa 

 patellae, with attached portion of the skin, from the knee of a 

 young woman — in spirit. 



The patient had suffered from an obstinate form of housemaid's- 

 knee for some years. As the condition was suspected to be tubercular^ 

 Mr Cathcart excised the whole bursa, and the patient made a good 

 recovery. 



The inner lining has numerous wart-like bodies growing 

 from it. G. C. 3263. 



Presented by Charles W. Cathcart, F.R.C.S.E., 1891. 



9. 17. Tubercular Enlargrement of the Bursa Patellae. — 



Sections of the right and left bursa patellae of a woman, showing 

 thickening and distension of the wall — in spirit. 



Mrs M., aged 38 years, was admitted to the Royal Infirmary, 

 Edinburgh, in May 1892, complaining of a solid swelling in the front of 

 botli knees, limited to the region of the bursa. For three years the 

 swelling on both knees, but especially that on the left, had gradually 

 increased, apparently from the patient's having had an unusual amount of 

 kneeling to do. Three months before admission a small abscess formed 

 in the swelling on the left side, and after bursting formed a sinus, which 

 continued to discharge. A fortnight before admission another abscess 

 formed in front of the left swelling, but it had not discharged itself. 

 The patient had had good health previous to the swelling, and had no 



