Transverse plane, soft tissue window, post contrast — Click the image to open the full-screen viewer.
6-year-old Female Spayed Cockapoo
9 kg
Presenting complaint and brief history
The patient presented with a six-week history of progressive non-productive cough and exercise intolerance.
Diagnosis
Hides the diagnosis, imaging findings, outcome, take-home points and correlation photos so you can read the images blind.
Pyogranulomatous pulmonary nodules
Confirmed
Imaging findings
CT revealed numerous well-defined, variably sized, round, soft-tissue attenuating nodules throughout all lung lobes. There was also undulant and contrast-enhancing thickening of the dorsal aspect of the trachea. Bronchoalveolar lavage and biopsy of the tracheal lesion were performed. Cytologic and histopathologic examination confirmed marked mixed, predominantly pyogranulomatous inflammation. No neoplastic cells were identified.
What happened with the patient
Patient was treated with corticosteroids and the pulmonary nodules completely resolved.
Key take-home points
Not all pulmonary nodules are neoplastic! They can also be granulomatous, for example due to inflammatory and/or infectious etiologies.
Contributed by
- Oren Ofer
DVM, DVSc, DACVR
52 cases
Educational use only — not clinical advice.
Cite this case
Ofer O. Pyogranulomatous pulmonary nodules. Radabase case f2bf42f7. Retrieved 2026-11-08 from https://www.radabase.vet/case/f2bf42f7-64f1-4814-909f-4d7e3a204803
Also searched as: pulmonary pyogranulomas, lung pyogranulomas, pyogranulomatous lung nodules, suppurative granulomatous lung nodules, nodular pyogranulomatous pneumonia, pyogranulomatous lung inflammation, inflammatory lung nodules
Discussion
Questions and observations from colleagues. Never post identifying patient or owner information.
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