《Slide 39.》Teratoma , Testis

A. Brief Descriptions：

    Teratomas are divided into three categories:

• mature(benign).

• immature(malignant).

• monodermal or highly specialized.

B. Gross Findings：

      Cystic & multiloculated.

C. Micro Findings：

1. All tissue are well differentiated or matured.

2. All types of tissue can be seen, the most common being nerve, cartilage, smooth.

3. Muscle & various types of epithelium (alimentary, respiratory, squamous).

D. Others:

1. Definition：True neoplasm arising from totipotential cells & composed therefore of numerous.

2. Types of tissue (more than one germinal layer).

3. Mature teratoma of testis：The least aggressive of the nonseminomatous germ cell tumors of the testis.

E. Reference：

     Robbins Pathologic Basis of Disease, 6^th ed.  P.1021-1022.

　

 

 

【 Fig. 39-1 (1X)】Cystic & multiloculated lesion.

　

  

 

【 Fig. 39-2 (4X)】Epithelial component seeen.

　

 

 

【 Fig. 39-3 (4X)】Skin component seen in this view.

　

 

 

【 Fig. 39-4 (4X)】Choroid plexus-like tissue seen in left view.

　

 

 

【 Fig. 39-5 (10X)】Catilage and bone seen in this view.

　

　

 

 

【 Fig. 39-6 (10X)】Mature goblet cells seen in this picture .