Determining the anatomical origin of canine hepatic masses by CT

Lamb, Christopher R.; Steel, R.; Lipscomb, Victoria

doi:10.1111/jsap.12921

Cited by 7 publications

(5 citation statements)

References 13 publications

(30 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Diffuse lesions were defined as coalescing lesions of micronodules or diffuse enhancement of the liver parenchyma within one or multiple liver lobes 1 . Lesion location was determined according to previously published guidelines 12 . Rim enhancement was defined as contrast enhancement at the border between the liver parenchyma and the lesion.…”

Section: Investigationsmentioning

confidence: 99%

See 1 more Smart Citation

Computed tomography findings in canine cholangiocellular carcinoma

Tanaka

Noguchi

Wada

et al. 2022

Vet Record Case Reports

View full text Add to dashboard Cite

Although triple‐phase computed tomography is used for differentiating canine liver neoplasms, there is limited information on the computed tomography features of cholangiocellular carcinoma. This retrospective case series assessed the computed tomography features of nine canine cholangiocellular carcinomas. The following computed tomography features were recorded: lesion shape (massive, multiple nodular or diffuse lesions), lesion location, rim enhancement (present or absent), enhancement pattern (stable, progressive or washout), lymphadenopathy (presence or absence) and pulmonary metastasis (presence or absence). Massive lesions, multiple nodular lesions and diffuse lesions were detected in two (22%), five (56%) and two (22%) patients, respectively. Rim enhancement in the arterial phase was observed in eight (89%) patients. Progressive enhancement was detected in six (67%) of the patients. Rim enhancement in the arterial phase and progressive enhancement may be characteristic of cholangiocellular carcinoma in dogs.

show abstract

Section: Investigationsmentioning

confidence: 99%

“…1 Lesion location was determined according to previously published guidelines. 12 Rim enhancement was defined as contrast enhancement at the border between the liver parenchyma and the lesion. The lesion enhancement pattern was defined according to an analysis of the attenuation of contrast enhancement over each postcontrast phase.…”

Section: Investigationsmentioning

confidence: 99%

Computed tomography findings in canine cholangiocellular carcinoma

Tanaka

Noguchi

Wada

et al. 2022

Vet Record Case Reports

View full text Add to dashboard Cite

show abstract

“…1,10 CT is also beneficial due to higher sensitivity in localising the divisional origin of hepatic pathology, which is superior to ultrasonography. 33,34 Knowledge of the divisional origin of a liver lobe torsion can help with presurgical planning, as right divisional torsions are more likely to experience massive haemorrhage due to close proximity to the caudal vena cava. 35 Despite imaging findings, neither CT or ultrasonography are definitive for diagnosis of liver lobe torsion in all cases.…”

Section: Discussionmentioning

confidence: 99%

“…This is due to visualisation of a whirl sign, or twisting of the vessels at the hilum of affected lobes, which is pathopneumonic for a liver lobe torsion 1,10 . CT is also beneficial due to higher sensitivity in localising the divisional origin of hepatic pathology, which is superior to ultrasonography 33,34 . Knowledge of the divisional origin of a liver lobe torsion can help with presurgical planning, as right divisional torsions are more likely to experience massive haemorrhage due to close proximity to the caudal vena cava 35 .…”

Section: Discussionmentioning

confidence: 99%

Left medial liver lobe torsion with secondary bicavitary effusion and septic peritonitis in a dog with an acute kidney injury following ovariohysterectomy

Johnson,

Spartz,

Erickson

et al. 2024

Vet Record Case Reports

View full text Add to dashboard Cite

A 7‐month‐old, spayed, female, mixed breed dog was referred for a 3‐day duration of elevated liver enzymes, azotaemia, anorexia and lethargy following ovariohysterectomy. Bloodwork showed non‐regenerative anaemia, inflammatory leukogram, moderate thrombocytopenia, severe azotaemia, severe mixed hepatopathy, hyperbilirubinemia and hypoalbuminemia. Point‐of‐care ultrasound identified free fluid and a heterogeneous mass in the mid‐ventral abdomen. Septic peritonitis was confirmed on cytology, and abdominal exploratory with left medial liver lobectomy was performed. Histopathology identified submassive hepatic necrosis and bridging fibrosis with biliary reaction, confirming a liver lobe torsion. The dog recovered perioperatively, but remained hospitalised to receive dialysis for severe renal dysfunction. The dog was transitioned to outpatient dialysis for several treatments. Unfortunately, kidney function continued to decline after dialysis was discontinued, and humane euthanasia was performed approximately 2 months postoperatively. To the authors’ knowledge, this is the first reported case of liver lobe torsion following routine ovariohysterectomy in a dog.

show abstract

“…In the present study, this device allowed surgeons to perform single and multiple nodulectomies and segmentectomies (preservation of hepatic parenchyma) as well as lobectomies, including complex lobectomies (preservation of major vasculature). Liver resections were successfully accomplished regardless of the location of the masses and their relationships with major liver vessels.The surgical planning for the treatment of hepatic masses by using triphasic CT is crucial because it provides information about the number and location of lesions, their relationship to the surrounding vasculature and gallbladder, and the potential sites of metastasis . Parenchymal preservation is particularly desirable when lesions are encountered in multiple lobes.…”

Section: Discussionmentioning

confidence: 99%

Use of a cavitron ultrasonic surgical aspirator for parenchyma‐sparing and complex liver resections in dogs

et al. 2020

View full text Add to dashboard Cite

Objective: To report the clinical use of a cavitron ultrasonic surgical aspirator (CUSA) for the resection of hepatic lesions in dogs. Study design: Clinical prospective study.Animals: Eleven client-owned dogs. Methods: Dogs requiring a hepatic nodulectomy, segmentectomy, and/or a lobectomy (including complex lobectomies) were enrolled. The number and location of procedures, blood loss, duration of surgery, and short-term complications were recorded.Results: Dogs underwent a mean of 2.3 ± 1.1 procedures. All masses were amenable to surgical excision regardless of their location and their relationship with major hepatic vessels. Dogs lost a median of 77 mL of blood (9.9-161), which corresponded to 4.3% of blood volume (0.8%-23.2%). The dog with the highest blood loss survived without requiring transfusion. The median duration of all CUSA procedures was 33.5 minutes (15-82). Short-term outcomes were assessed for the first 15 days, during which two complications were diagnosed. Cholangiohepatitis was diagnosed in one dog and resolved after medical management, and another dog developed necrotic pancreatitis and died.Conclusion: Liver parenchyma-sparing nodulectomies and segmentectomies and liver lobectomies including complex lobectomies were achieved with a CUSA in all dogs.Clinical significance: Use of a CUSA can be considered as an alternative for the removal of hepatic lesions in dogs.

show abstract

Determining the anatomical origin of canine hepatic masses by CT

Abstract: Combining CT features of hepatic masses appears to be an accurate method for determining their divisional or lobar origin.

Cited by 7 publications

References 13 publications

Computed tomography findings in canine cholangiocellular carcinoma

Computed tomography findings in canine cholangiocellular carcinoma

Left medial liver lobe torsion with secondary bicavitary effusion and septic peritonitis in a dog with an acute kidney injury following ovariohysterectomy

Use of a cavitron ultrasonic surgical aspirator for parenchyma‐sparing and complex liver resections in dogs

Contact Info

Product

Resources

About