Case Index - January 2004 - Case of the Month.
Click on an image for a larger view and scroll down to the bottom for the final answer.
8 year old, female spayed domestic medium haired cat.
Presented with ventral body wall mass in right ventral thorax
US images of body wall mass and spleen (as part of abdominal scan)
List Differentials (Scroll to bottom for answer)
Answer:
Sonographic Findings: Lenticular mass in body wall and hypoechoic nodule in spleen.
Diagnosis: Mammary neoplasia and splenic metastasis
FNA: Mammary carcinoma in both organs
Splenic nodules are quite uncommon in cats (as opposed to dogs). Benign masses are very uncommon in cats and any nodule in a cat should be suspicious for neoplasia, especially when a primary mass is confirmed.
