macrocyst

This is known as a macrocyst.

Large macrocyst lesions may require in utero placement of a Harrison thoracoamniotic shunt.

While sexual reproduction is possible, it is very rare to see successful germination of a D. discoideum macrocyst under laboratory conditions.

When this macrocyst germinates, it releases hundreds of amoebic cells that are the product of meiotic recombination between the original two cells.

When cannibalism is complete, the giant diploid cell is a hardy macrocyst which eventually undergoes recombination and meiosis, and hatches hundreds of recombinants.

Inside the macrocyst, the giant cell divides first through meiosis, then through mitosis to produce many haploid amoebae that will be released to feed as normal amoebae would.