Table 1.
Features | Human | Fruit Fly | Clawed Frog | Mouse | Laying Hen | |
---|---|---|---|---|---|---|
Anatomic | Ovaries (number) | + (2) | + (2) | + (2) | + (2) | + (1) |
Fallopian tubes (number) | + (2) | + (1) | + (2) | + (2) | + (1) | |
Fallopian tube fimbriae | + | − | − | + | − | |
Ovarian bursa | − | − | − | + | − | |
Uterus | + | + | − 1 | + | + 2 | |
Histological | Endometriosis | + | − | − | − 3 | − |
Physiological | Menstrual cycle | + | − | − | − | − |
Estrus cycle | − | − | − | + | − | |
Clinical | Spontaneous cancer development | + | − | + | − | + |
Pathological | Confirmed histotypes | + | − | − | + | − 4 |
Experimental | Genetic modifications | NA | + | + | + | − |
1 In frogs, the fallopian tube disembogues into cloaca. 2 The hen uterus lacks endometrium; it is responsible for egg shell formation. 3 Endometriosis in mice does not develop spontaneously; its models are obtained surgically or by genetic engineering. 4 Histological types of hen tumors were not tested for immunophenotypic similarity to human ovarian cancers. NA—not applicable.