Inferolateral lobule

Lobulus inferolateralis

Definition

The inferolateral lobule is the lower lateral lobule of the prostate.

In the Terminologia Anatomica 1 (1998), for each lateral lobe of the prostate, four lobules were defined by the arrangement of ducts and connective tissue and may be distinguished with the unaided eye. But the combined inferoposterior/inferolateral lobules, the superomedial lobules and the anteromedial lobules correspond to the histological entities of McNeal [1988 Am J Surg Pathol 12: 619-633], and widely called after his usage, peripheral, central and transitional zones respectively.

  • Combined inferoposterior/inferolateral lobules = Peripheral zone (PZ)
  • Superomedial lobules = Central zone (CZ)
  • Anteromedial lobules = Transitional zone (TZ)
  • The middle lobe of prostate is now considered as a variation consisting of an independent prominence extending from the isthmus.

 

Sources: https://fipat.library.dal.ca/ta2/

References

Text by Antoine Micheau, MD - Copyright IMAIOS