Pancreatic Abscess in a cat due to <i>Staphylococcus aureus</i> infection

Abstract

A 16-year-old spayed female American Shorthair cat was presented with lethargy, anorexia, and wamble. Physical and blood examination did not reveal any remarkable findings. Abdominal ultrasonography identified the presence of a localized anechoic structure with a thick wall in contact with the small intestine and adjacent to the liver. Ultrasound-guided fine-needle aspiration of the structure revealed fluid containing numerous cocci and neutrophils. Two days after antibiotic treatment, exploratory laparotomy was performed and the content of the structure was removed before multiple lavages. The pathological and bacteriological examination results supported a confirmatory diagnosis of pancreatic abscess due to Staphylococcus aureus infection, making this the first such report in a cat. The cat remained healthy thereafter with no disease recurrence.

Feline abdominal ultrasonography: What’s normal? What’s abnormal? The pancreas

“…Pancreatic abscessation Pancreatic abscesses are uncommon in cats but may develop as a consequence of pancreatitis or an infected pseudocyst. 67 Pancreatic abscessation has also been identified in a cat with diabetes mellitus. 68 Abscesses can be highly variable in appearance but usually present as thick-walled cavitary lesions with hyperechoic or flocculent contents (Figure 12).…”

“…68 Abscesses can be highly variable in appearance but usually present as thick-walled cavitary lesions with hyperechoic or flocculent contents (Figure 12). 67,68 Occasionally gas is also present and recognised on ultrasound by the presence of hyperechoic foci associated with a reverberation artefact. 1 Pancreatic bladder A pancreatic bladder refers to cystic dilation of the pancreatic duct, a rare condition in the cat.…”

Duodenal duplication cyst masquerading as a pancreatic abscess in a cat

“…Definitions in human medicine are variable and there is not a clear consensus of the definition in animals. 4 It has been described as circumscribed purulent and necrotic material in the pancreatic parenchyma. 5 This appears on ultrasound as a fluid-filled pocket in the pancreas with or without a surrounding wall.…”

“…5 This appears on ultrasound as a fluid-filled pocket in the pancreas with or without a surrounding wall. [4][5][6][7] In this case, the ultrasound demonstrated evidence of pancreatitis, which does not differentiate pancreatic abscess from duodenal duplication cyst as it can be present concurrently with both lesions. Pancreatic abscess was a primary differential due to the mass characteristics apparent on ultrasound.…”

Rapid Detection of Feline Calicivirus and Feline Herpesvirus by Duplex Nested RT-PCR

“…Feline upper respiratory tract disease (URTD) is most commonly seen in cats that are grouped together in crowded, high-stress environments, such as animal shelters, boarding kennels and breeding centers (Cohn, 2011). URTD is caused by numerous pathogens, including feline calicivirus (FCV) (Berger et al, 2015), feline herpesvirus type 1 (FHV-1) (Mcgregor et al, 2016), Bordetella bronchiseptica (Bb) (Garbal et al, 2016), Chlamydia felis (Cf) (Kang et al, 2016), Streptococcus canis, staphylococcus (Nemoto et al, 2017) and Mycoplasma felis (Mf) (Le Boedec, 2017). Among these pathogens, FCV and FHV-1 are highly contagious and are responsible for most cases of URTD (Holst et al, 2010;Sykes, 2014).…”