A 1-year-old cat had big swellings (mastitis) 6 months after spay surgery
Channel: Dr David Sing
Date: 2019-02-05

5 Feb 2019. Chinese New Year. 

A veterinary educational video for cat owners

Vet 1 spayed the cat 6 months ago. The owner returned with a complaint of swollen areas. She was referred to Vet 2 by Vet 1. 

Vet 2 was referred to by Vet 1.
1. Ultrasound. Ventral abdominal hernia from  the herniated omental fats

2. Blood test indicated bacterial infections - neutrophilic leucocytosis. Monocytosis indicated a long-standing infection. Said to quote $4,000 for the surgery.

Vet 3. The owner came to Toa Payoh Vets. Dr Daniel operated on Feb 4, 2019 (Chinese New Year's Eve). He confirmed "no hernia" but mastitis and removed the two bands of swollen mammary tissues.  There was no hernia from the spay. 

In conclusion, my hypothesis is that that the cat had a hernia with omental fat appearing. 

But after 6 months of chronic inflammation at area after spay, the blood test showed monocytosis. An increase in monocytes usually means a chronic inflammation which appeared in the swollen mammary glands on left and right. The mammary tissues had turned dark brown indicating an infection throughout the tissues over the past 6 months. 

These tissues were excised as dark brown purulent materials. There could have been stimulated to swell from residual ovarian tissues or from infections. The owner was not happy with the presence of the swellings and consulted Vet 1 six months after spay..