..........and what's the story with the missing leg(s?)
Guessing had something to do with it since the circulation to the pelvis drains into the legs but if ya got no legs..... 14 gauge needle and 6 of the 60cc syringes should work!
Looks like Hydrocele, or scrotal edema. I have seen this a number of times in the embalming room in decedents that have been treated with cancer medicines. I actually poked a hole in them once on accident, and they leaked until I put plastics on him to prevent leakage into the casket or onto the clothing.