Final answer:
PCT, or Porphyria Cutanea Tarda, can be both acquired or familial. The condition involves issues with heme production and is not the same as chronic idiopathic jaundice, which involves excessive bile pigment excretion.
Step-by-step explanation:
The term PCT refers to Porphyria Cutanea Tarda, which is the most common type of porphyria. Porphyrias are a group of rare disorders caused by problems with heme production, and they can be either acquired or familial. PCT is usually acquired but there is also a hereditary form. Chronic idiopathic jaundice, where there is excessive excretion of bile pigments and other substances like coproporphyrins of type-I in the urine, is a different condition and is not a form of porphyria.