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Prevalence of malignancy when solitary versus multiple lesions are detected during abdominal ultrasonographic examination of dogs with spontaneous hemoperitoneum: 31 cases (2003–2008)

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Abstract Objective–

To compare the histopathologic diagnosis in dogs with spontaneous hemoperitoneum when abdominal ultrasonographic examination detects a solitary versus multiple lesions. Design–

Retrospective cross-sectional study. Setting–

Private veterinary hospital. Animals–

Client-owned dogs presented with spontaneous hemoperitoneum between March 1, 2003 and June 1, 2008. Interventions–

Dogs were divided into 2 groups based on presence of a solitary or multiple abdominal ultrasonographic lesions. Prevalences were compared between groups for malignancy and specifically hemangiosarcoma. Measurements and Main Results–

Ten of 31 (32%) dogs had a solitary abdominal ultrasonographic lesion and 21 of 31 (68%) had more than 1 lesion. The bleeding tissue was characterized as malignant in 8 of 10 (80%) dogs with solitary lesions and 17 of 21 (81%) dogs with multiple lesions; there was no significant difference (P=1.0) between groups. In this study no association (P=0.26) was found between the number of abdominal ultrasonographic lesions observed and subsequent diagnosis of hemangiosarcoma. Conclusions–

Solitary abdominal ultrasonographic lesions in dogs with spontaneous hemoperitoneum do not necessarily indicate a lower prevalence of malignancy.

Keywords: hemangiosarcoma; spleen; ultrasonography

Document Type: Research Article


Affiliations: 1: VCA Newark Animal Hospital, Newark, DE 19711 2: VCA Newark Animal Hospital, Department of Radiology, Newark, DE 19711 3: Department of Clinical Studies, New Bolton Center, School of Veterinary Medicine, University of Pennsylvania, Kennett Square, PA 19348 4: VCA Newark Animal Hospital, Emergency Service, Newark, DE 19711

Publication date: October 1, 2009

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