Lung carcinoma metastasis at the site of central venous access

Gastrointestinal stromal tumor metastasis at the site of a totally implantable venous access port insertion: A rare case report

BACKGROUND

The totally implantable venous access port (TIVAP) is an important device in patients for injecting blood products, parenteral nutrition or antineoplastic chemotherapy. Metastatic spread at the site of the insertion of a TIVAP is extremely rare.

CASE SUMMARY

We report the case of 33-year-old male with advanced gastrointestinal stromal tumor (GIST) who underwent radical tumor resection after neoadjuvant imatinib therapy. However, a solitary GIST metastasis at the site of a TIVAP insertion developed during adjuvant imatinib treatment. Mutational analysis showed secondary mutation in KIT exon 13 (V564A), which is resistant to imatinib treatment. To our knowledge, this is the first case report of a patient with advanced GIST developing GIST metastasis at the site of a TIVAP insertion.

CONCLUSION

This case highlights that when a patient with advanced, high metastatic GIST requires TIVAP insertion, we should realize that there is a risk of developing tumor metastasis at the site of a TIVAP insertion.

Metastatic spread from squamous cell carcinoma of the hypopharynx to the totally implantable venous access port insertion site: Case report and review of literature

BACKGROUND

The totally implantable venous access port plays a crucial role in delivering chemotherapy in the outpatient setting. Here, we report the first case of a patient with hypopharyngeal tumor who developed chest wall metastasis over the totally implantable venous access port inserted in the internal jugular vein.

METHODS

Our patient, a 58-year-old man with a hypopharyngeal tumor presented with a lump over the totally implantable venous access port site. The port was removed and the lump was biopsied. The CT studies showed that the tumor had spread along the catheter from the hypopharynx to the chest wall.

RESULTS

The pathology from the biopsy showed squamous cell carcinoma (SCC). The patient had poor performance status and opted for hospice care.

CONCLUSION

We present a novel case of metastasis over the totally implantable venous access port implanted in a patient with a hypopharyngeal tumor. We also reviewed relevant literature comparing the data from percutaneous endoscopic gastrostomy (PEG) tube site metastasis with our patient and other similar case reports.

Metastasis over implantable venous access ports

BACKGROUND

The totally implantable venous access port (TIVAP) is an important device for patients receiving chemotherapy. We have reported, to our knowledge, the first case of a metastatic tumor over a TIVAP implanted via the Seldinger technique with a subclavian vein puncture.

METHODS

Our patient, a 48-year-old man with hard palate cancer, had metastasis over the TIVAP. CT studies showed that the tumor had spread along the catheter from the neck to the chest wall.

RESULTS

The cause of death was multiple lung metastases and intractable tumor bleeding over the TIVAP.

CONCLUSIONS

We present a novel case of metastasis over the TIVAP implanted by use of the Seldinger technique. This technique is used for patients receiving prolonged cytotoxic therapy for malignancy. Although the Seldinger technique is quick and more effective, we prefer the cephalic vein cut-down technique when an aggressive, advanced cancer of head and neck is involved.

Tumor thrombus in right atrium from lung adenocarcinoma

We report a case referred for elective surgery to remove an intra-atrial extension of a tumor thrombus. The patient underwent surgical excision of the mass because he would have a high risk of sudden death, pulmonary embolism, or tricuspid obstruction. A histologic examination established the diagnosis of lung adenocarcinoma metastases.