Animal Referral Hospital Homebush Homebush West Nsw
. 2017 Feb 1;iii(one):2055116917691069.
doi: 10.1177/2055116917691069. eCollection January-Jun 2017.
Metastatic pulmonary carcinomas in cats ('feline lung-digit syndrome'): farther variations on a theme
Affiliations
- PMID: 28491449
- PMCID: PMC5359792
- DOI: 10.1177/2055116917691069
Costless PMC article
Metastatic pulmonary carcinomas in cats ('feline lung-digit syndrome'): further variations on a theme
JFMS Open Rep. .
Free PMC article
Abstract
Case series summary: The aim of this retrospective instance series was to depict seven cases where cats with primary lung tumours were presented because of metastases to extra-pulmonary sites ('feline lung-digit syndrome'). Specifically, we wanted to emphasise less typical case descriptions where neoplasm emboli resulted in lesions developing in the musculature (including the muscles of the head), skin or distal aorta.
Relevance and novel information: The cases are presented to increase clinical awareness of this entity in feline do, especially when characteristic combinations of clinical signs are present. When clinicians accept a loftier index of suspicion for these presentations, radiology (thorax and digits) or ultrasound (distal aorta), combined with collection of fine needle aspirate specimens for cytology, are usually sufficient to secure a definitive diagnosis. Novel information in this serial includes CT and MRI findings from some cases. Typically, needle aspiration or biopsy targeting the skin, digits and lesions in musculature is far easier compared with sampling the primary tumour site in the lungs. The differential diagnosis and investigation of multiple digital lesions is also considered.
Conflict of interest statement
Disharmonize of involvement: The authors declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this commodity.
Figures
![Figure 1](https://www.ncbi.nlm.nih.gov/pmc/articles/instance/5359792/bin/10.1177_2055116917691069-fig1.gif)
Case one. (a) Appearance of the distal correct hindlimb prior to amputation; plantar attribute. (b) Appearance of both hindlimbs immediately prior to amputation. Note the neurogenic muscle atrophy and hindlimb contracture. The orange arrows in (a) and (b) highlight the region of skin necrosis
![Figure 2](https://www.ncbi.nlm.nih.gov/pmc/articles/instance/5359792/bin/10.1177_2055116917691069-fig2.gif)
CT image of a metastatic lesion (arrow) in the caudomedial musculature of the left hindlimb of case 1. Note the marked atrophy of the hindlimb musculature
![Figure 3](https://www.ncbi.nlm.nih.gov/pmc/articles/instance/5359792/bin/10.1177_2055116917691069-fig3.gif)
Transverse CT slice of the thorax of a cat with suspected multiple pulmonary carcinomas (instance 1). Note the pulmonary masses (orange arrows), some of which are wedge-shaped, consequent with tumour emboli causing pulmonary infarcts
![Figure 4](https://www.ncbi.nlm.nih.gov/pmc/articles/instance/5359792/bin/10.1177_2055116917691069-fig4.gif)
Necropsy photograph of the pulmonary lesions in case ii. The cranial tip of the left cranial lung lobe is night dark-brown (pointer) and sharply demarcated from normal tissue past a business firm, irregular, pale tan, depressed lesion
![Figure 5](https://www.ncbi.nlm.nih.gov/pmc/articles/instance/5359792/bin/10.1177_2055116917691069-fig5.gif)
Plain lateral thoracic radiograph of instance 3, showing a well-defined focal radiodensity in the caudal lung field (arrows)
![Figure 6](https://www.ncbi.nlm.nih.gov/pmc/articles/instance/5359792/bin/10.1177_2055116917691069-fig6.gif)
Post-gadolinium contrast transverse fluid-attenuated inversion recovery (FLAIR) magnetic resonance prototype from example 7, revealing fluid-filled lesions (blue arrows) in the temporalis muscles with surrounding oedema
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Animal Referral Hospital Homebush Homebush West Nsw
Source: https://pubmed.ncbi.nlm.nih.gov/28491449/
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