A Case of Segmental Aplasia of the Uterus, Cervix, and Cranial Vagina in a Cat

• Main Authors: Samantha Souther, Nam Joo Baik, Kemba Clapp, Mike Nappier, D. Phillip Sponenberg, Julie Cecere
• Format: Article
• Language: English
• Published: Frontiers Media S.A. 2019-05-01
• Series: Frontiers in Veterinary Science
• Subjects: segmental aplasia; uterus; cervix; vagina; vaginal mass; disorder of sexual development
• Online Access: https://www.frontiersin.org/article/10.3389/fvets.2019.00145/full

This case documents a rare set of congenital anomalies that resulted in an atypical cystic lesion in the cranial vagina of a queen. A discrete cystic lesion was identified in an 8 year old intact female domestic shorthair cat presenting for routine ovariohysterectomy. Morphological, radiographic, and histopathological findings were consistent with segmental aplasia of the uterus, cervix, and vagina resulting in a blind dilation of the cranial vagina. Segmental vaginal aplasia in combination with the failed canalization of the cervix resulted in a blind portion of the cranial vagina, in which normal secretions collected and became inspissated. This formed a discrete cystic structure. This case represents a novel combination and clinical presentation of segmental aplasia in the cat, involving both the uterus and cranial vagina. Ovariohysterectomy was performed for sterilization and a partial vaginectomy was performed to remove the cystic lesion in its entirety.