Which operculated cestode egg can be recovered from human feces?

Diphyllobothrium latum, also known as the broad fish tapeworm, is the correct choice as it produces operculated eggs that are typically found in human feces. The operculum is a characteristic feature of the eggs, which can be identified under a microscope.

Diphyllobothrium latum is transmitted to humans through the consumption of undercooked or raw fish that harbor the larval stage of the parasite. Once ingested, the adult tapeworm resides in the intestines, leading to egg production, which is then excreted in the feces.

In contrast, the other options do not produce operculated eggs or are not typically recovered from human feces. Clonorchis sinensis, while an operculated egg, is not typically found in feces but rather in bile or liver specimens, as it is a liver fluke. Paragonimus westermani is also a lung fluke, and its eggs are generally found in sputum or respiratory secretions rather than feces. Dipylidium caninum, another tapeworm, produces eggs that are not operculated; instead, they appear more like a packet of eggs. Therefore, recognizing the specific characteristics of the eggs