Case of the week 9.19.22
Publication Date: 2022-09-19
History
13 year old female spayed cat. Anorexia. Peridontal disease.
3 images
Findings
Orthogonal radiographs of the thorax are available for interpretation.
Within the cranial mediastinum, there is an ovoid, homogeneously soft tissue opaque structure which measures approximately 5.0 cm in length and extends from the second intercostal space to the fifth intercostal space along the left aspect of the cardiac silhouette. The cardiac silhouette and pulmonary vessels are normal.
The pulmonary parenchyma is normal.
The pleural space is normal.
There is mild, periarticular new bone formation at both glenohumeral joints. There is mild, multi-focal, incidental spondylosis deformans.
Within the included portion of the abdomen, the liver is mildly enlarged extending beyond the costal arch.
Diagnosis
- The ovoid soft tissue opaque structure within the cranial mediastinum may represent a malignant process (such as a thymoma) or a branchial cyst. The planned thoracic ultrasound may provide further information.
- Mild hepatomegaly is non-specific, but does raise concern for hepatic lipidosis given the reported hyporexia and anorexia. Malignancy (such as infiltrative neoplasia) cannot be excluded.
Discussion
FNAs were performed with ultrasound guidance and were consistent with thymoma
Notes
This case was initially seen by Dr. Monto
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