REPRODUCTIVE ORGANS OF THE MALE. 721 



may arise from the connective tissue of the spermatic cord or from the 

 tunica albugiuea. 



Chondroma, sometimes in a pure form, but more frequently combined 

 with niyxonia and sarcoma, occurs in the testicles and may attain a large 

 size. Osteoma has been described. 



Sarcomata occur in the testes and epididymis, most frequently in the 

 former. They may be composed of spheroidal or spindle-shaped cells; 

 they may be soft or contain much fibrous tissue ; they are very frequently 

 combined with myxoma, choudronia, lipoma, etc. Owing to the occlu- 

 sion of the seminiferous tubules, cysts may be formed in these sarcomata. 

 In such cysts sarcomatous tissue may occur in the form of iutracaualic; 



- II ^ 

 J 



: ; s ; : ;:; 1 M 



4''".%v 



!'''' -i'. : '. 



FIG. 475. TERATOMA OF THE TESTICLE. 

 Masses of hyaline cartilage at the left ; new-formed atypical glandular structures at the right. 



ular polypoid growths. Thus the so-called cysto- sarcomata of the testi- 

 cle are formed. The walls of these cysts may coalesce, so that large, 

 irregular cavities may be formed. When the cysts are not filled by 

 polypoid outgrowths from their walls they may contain a mucous, serous, 

 or bloody fluid, or masses of flattened cells, fat, and cholesteriu. The 

 cysts may be lined with cylindrical, ciliated, or flattened cells. 



Rhabdomyoma has been several times observed, frequently in com- 

 bination with cysts. \ 



Adenoma is occasionally found, usually in combination with sarcoma 

 or carcinoma, or with cyst formation. 



Carcinoma of the testicle is commonly of the soft medullary form, of 



1 For study of rhabdomyoma, with bibliography, see Becker, Virchow's Arch., Bd. 

 clxiii., p. 244, 1901. 

 46 



