Un caso di iperplasia pseudo-placentare (PEH) in una cagna: Osservazioni cliniche e rilievi istopatologici

A healthy female Labrador Retriever was referred to the Reproduction Unit for a gynecological examination and for monitoring the cycle in view of the mating. The bitch underwent natural mating and the pregnancy diagnosis was performed on the 35th day after mating. The ultrasound examination revealed a mono gestational pregnancy and the presence of a parenclyymatous structure with very scarse liquid component consistent with the remaining of an empty gestational sac. At the end of the pregnancy a caesarean section was needed. The puppy was alive and apparently healthy. After ovariohysterectomy different nodular structures were observed on the endometrium of both uterine horns. A histopathological examination diagnosed a Pseudoplacentational Endometrial Hyperplasia (PEH) a not so common pathological finding often misdiagnosed as a common gstic endometrial hyperplasia.