Placental transmogrification of the lung

Placental transmogrification of the lung is a very rare condition, where a region of alveoli resemble the chorionic villi of placenta.

It has been assigned various names in the past which include placentoid bullous lesion.

Placental transmogrification usually occurs in men usually between 20 to 50 years old.

Histologically, pulmonary placental transmogrification tends to resemble immature placental structures although they dont have show any biologic properties of the placenta.

Can be variable usually seen is a unilateral bullous emphysematous region with or without an associated nodule or consolidation. Some times the bullous emphysematous changes can be rather large. Fat attenuating components may also be occasionally present 4.

It was initially described in 1979 by T McChesney. 

Surgical resection may be needed on some cases and the prognosis after surgical resection is considered excellent 4.

Article information

rID: 62343
System: Chest
Synonyms or Alternate Spellings:
  • Pulmonary placental transmogrification (PT)
  • Placentoid bullous lesion
  • Pulmonary placental transmogrification
  • Placental transmogrification of lungs

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