Today’s case is a 7 year old female neutered Bernese Mountain Dog with cervical mast cell tumor. What is your top differential diagnosis?
Teaching and learning about veterinary diagnostic imaging.
Today’s case is a 7 year old female neutered Bernese Mountain Dog with cervical mast cell tumor. What is your top differential diagnosis?
There is a well-defined, lobular soft tissue opacity with air bronchograms in the right middle lung lobe. There is a more poorly defined alveolar pattern in the caudal subsegment of the left cranial lung lobe. There is also a mild, diffuse bronchointerstitial pattern present throughout the lungs. The cardiovascular structures, mediastinum, and pleural space appear normal.
Histiocytic sarcoma—diagnosed by fine needle aspirate of the lung mass.
Charlierak says
Other than breed-specific predisposition of the Histiocytic sarcoma in Bernese Mountain Dog, additional reasons for bringing this condition first is that the metastases of MCT usually take place on the GI,spleen and LN?
Allison Zwingenberger says
This is a very common site for pulmonary histiocytic sarcoma, with specific imaging characteristics that make it the first differential diagnosis. Mast cell tumor is uncommon as a lung mass so that is less likely.
Charlierak says
I found the same mention in the BSAVA Thanks a lot.
Charlierak says
Not exactly same though. Just depiction of HIstiocytic sarcoma in a dog with an example picture.