Hepatic Hydatid Cyst with Daughter Cysts

A 34-year-old shepherd from a sheep-rearing region presents with right upper quadrant discomfort and hepatomegaly. Ultrasound shows a 12 cm cystic lesion in the right lobe of the liver with a "wheel-spoke" or "honeycomb" appearance. Serology is positive for anti-Echinococcus IgG. CT confirms a multivesicular cyst with a calcified rim. At laparotomy, the resected specimen reveals multiple grape-like structures marked **B** within the main cyst cavity, along with milky hydatid fluid and hydatid sand. Which of the following best describes the clinical and pathological significance of the structures marked **B**?