This content is also available in:
Español
Čeština
Polski
The lungs are a very common site for metastasis. Metastases are diagnosed in sputum in up to 70% of cases.
- Squamous carcinomas from aerodigestive tract
- Breast carcinoma
- Renal cell carcinoma
- Adenocarcinomas from digestive tract
- Bladder carcinoma
- Male and female genital tract malignancies
- Thyroid carcinoma
- Melanoma
- Hematopoietic malignancies
- Sarcoma
Confirming metastatic disease is a major indication for transthoracic FNA.
Primary sites for some metastatic tumors can be inferred based on their characteristic cytologic features, but the clinical history is particularly important. Tissue-specific markers can be assessed on cell block preparations; immunocytochemistry is often helpful in distinguishing primary from metastatic disease and in identifying the origin of metastasis.
![](http://lnx.eurocytology.eu/sites/default/files/styles/max/public/images/Picture1_38.jpg)
![](http://lnx.eurocytology.eu/sites/default/files/styles/max/public/images/Picture2_33.jpg)
![](http://lnx.eurocytology.eu/sites/default/files/styles/max/public/images/Picture3_30.jpg)
![](http://lnx.eurocytology.eu/sites/default/files/styles/max/public/images/Picture4_21.jpg)
Signet ring carcinoma:
![](http://lnx.eurocytology.eu/sites/default/files/styles/max/public/images/Picture5_18.jpg)
![](http://lnx.eurocytology.eu/sites/default/files/styles/max/public/images/Picture6_14.jpg)
Renal clear cell carcinoma:
![](http://lnx.eurocytology.eu/sites/default/files/styles/max/public/images/Picture7_11.jpg)
![](http://lnx.eurocytology.eu/sites/default/files/styles/max/public/images/Picture8_11.jpg)
Oncocytic thyroid carcinoma:
![](http://lnx.eurocytology.eu/sites/default/files/styles/max/public/images/Picture9_8.jpg)
![](http://lnx.eurocytology.eu/sites/default/files/styles/max/public/images/Picture9_17.jpg?itok=xb8PcInB)
![](http://lnx.eurocytology.eu/sites/default/files/styles/max/public/images/Picture11_8.jpg)
Metastatic epidermoid carcinoma:
![](http://lnx.eurocytology.eu/sites/default/files/styles/max/public/images/Picture12_6.jpg)
![](http://lnx.eurocytology.eu/sites/default/files/styles/max/public/images/Picture13_6.jpg)
Metastatic breast carcinoma:
![](http://lnx.eurocytology.eu/sites/default/files/styles/max/public/images/Picture16_3.jpg)
![](http://lnx.eurocytology.eu/sites/default/files/styles/max/public/images/Picture17_3.jpg)
Varoius:
![](http://lnx.eurocytology.eu/sites/default/files/styles/max/public/images/Picture14_3.jpg)
![](http://lnx.eurocytology.eu/sites/default/files/styles/max/public/images/Picture15_4.jpg)
![](http://lnx.eurocytology.eu/sites/default/files/styles/max/public/images/Picture18_4.jpg)
![](http://lnx.eurocytology.eu/sites/default/files/styles/max/public/images/Picture19_3.jpg)