False mets

Adrien-Maxence Hespel

Publication Date: 2015-01-21

Details

Service Radiology

Modality: Radiographs

Species: Canine

Area: Head

History

8 year old mixed breed dog. Mass on the side of the prepuce ( mesenchymal tumor)

3 images

   
   

Findings

On the left lateral projection at the level of the 3rd intercostal space, in the ventral thorax a well defined soft tissue nodule measuring about 4mm is noted. This nodule is however not visualized on any other projection. On the ventrodorsal projection a rounded structure is superimposed with the spine of the left scapula and measures about 7mm.

Further imaging

The student on the case indicated the presence of a skin mass in the area. The skin lump was coated with barium, and radiographs repeated. The skin lump was the cause of the shadow noted superimposed with the lung parenchyma.

  1. Radiographically, what is the smallest size of a detectable pulmonary metastases ?

    1-3mm
    Wrong :D
    3-5mm
    Wrong :D
    5-7mm
    Wrong :D
    7-9mm
    Right !! Thrall 6th edition, pages 621

Diagnosis

Final diagnosis: Skin lump mimicking a potential pulmonary metastasis.

Notes

Files