Most common type of teratoma of the testis is? – Surgery MCQ

Most common type of teratoma of the testis is?
A. Teratoma differentiated
B. Malignant teratoma intermediate
C. Malignant teratoma anaplastic
D. Malignant teratoma trophoblastic

Correct answer : B. Malignant teratoma intermediate

Histology of teratoma

• Teratoma arises from totipotent cells in the rete testis.
• Histologically it is classified into 4 types:
  • Teratoma differentiated
  • Malignant teratoma intermediate
  • Malignant teratoma anaplastic
  • Malignant teratoma trophoblastic
• The most common type is malignant teratoma intermediate.
• It contains malignant and incompletely differentiated components.

Ref: Bailey and Love’s Short Practice of Surgery, 25th edition, p 1385.
Image credits:  Nephron. https://en.wikipedia.org/wiki/File:Teratoma_2_low_mag.jpg Licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license.