Breast metastasis and lung large-cell neuroendocrine carcinoma: first clinical observation

Metachronous bilateral breast metastases of a lung neuroendocrine tumor: A case report

Breast metastases of primary lung neuroendocrine tumors are rarely reported. The current report presents the case of a 41-year old female with no history of smoking who initially underwent surgery for a breast fibroadenoma, during which a neuroendocrine tumor of the right lung was detected via chest X-ray. The patient underwent surgery for the tumor and developed right breast nodules after adjuvant chemotherapy. Histological and immunohistochemical examinations of biopsies from these nodules indicated breast metastasis of the primary lung neuroendocrine tumor. The patient underwent mastectomy of the right breast but subsequently developed metastases in the left breast, for which local radiotherapy was administered. The observed metachronous bilateral breast metastases indicated that the contralateral breast should be considered during an investigation of metastasis.

Metastatic large cell neuroendocrine lung cancer to the foramen magnum: A case report

RATIONABLE

Large cell neuroendocrine carcinoma of the lung is rare, especially in the area of the foramen magnum. No previous studies have reported metastatic large cell neuroendocrine lung cancer to the foramen magnum. This paper will be the first time to report this special case.

PATIENT CONCERNS

A case of a 37-year-old woman presented with headache that had developed 20 days previously. Imaging examination revealed a circular abnormal signal at the posterior margin of the foramen magnum.

DIAGNOSES

The patient we report was diagnosed with a metastatic intracranial tumor.

INTERVENTIONS

The patient underwent occipital craniotomy. Pathological results showed metastatic neuroendocrine carcinoma of the brain. Whole body PET-CT examination showed that fusiform soft tissue shadows could be seen near the hilum of the lower lobe of the left lung.

OUTCOMES

The final bronchoscopy pathological results showed the large cell neuroendocrine carcinoma of the lung. The patient underwent further chemotherapy and radiotherapy in the oncology department.

LESSONS

Diagnosis and treatment of large cell neuroendocrine carcinoma of the lung are difficult. The prognosis is poorer, and effective treatment is urgently needed.

Laparoscopic hepatectomy for liver metastasis of lung large-cell neuroendocrine carcinoma: A case report

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Lung large-cell neuroendocrine carcinoma (LCNEC) is an aggressive and a rare type of lung cancer.

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The prognosis of LCNEC with distant metastasis is extremely poor.

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Surgical resection for liver metastasis of LCNEC may improve prognosis.

Introduction

Lung large-cell neuroendocrine carcinoma (LCNEC) is an aggressive and a rare type of lung cancer, and the prognosis of LCNEC with distant metastasis is extremely poor, with a five-year survival rate of 0%. Here, we report a case of laparoscopic hepatectomy for liver metastasis of lung LCNEC.

Presentation of case

A 63-year-old man received a routine physical examination, and abnormal chest radiographic findings were observed; chest computed tomography (CT) in our hospital revealed that the patient had left pneumothorax and a lesion measuring 18 mm in the inferior lingular segment of the lung. The patient underwent thoracoscopic lobectomy, and the final pathological diagnosis was lung LCNEC. Four years after surgery, abdominal CT revealed a mass measuring 27 mm in the liver. The patient underwent laparoscopic partial hepatectomy, and postoperative pathological examination showed liver metastasis of LCNEC. There was no sign of recurrence 6 months after hepatectomy.

Discussion

LCNEC with distant metastasis has a poor response to systemic chemotherapy, and the median survival time of patients with distant metastasis is estimated to be approximately 6 months, with a five-year survival rate of 0%. Although the common site of metastasis from LCNEC is the liver, there are no previous reports of hepatectomy for liver metastasis of LCNEC.

Conclusion

We report a case of laparoscopic hepatectomy for liver metastasis of lung LCNEC. It is suggested that surgical resection for solitary distant metastasis of LCNEC may improve prognosis.

Breast metastasis from EGFR-mutated lung adenocarcinoma: A case report and review of the literature

Although lung cancer rarely metastasizes to the breast, we report a case of breast metastasis from lung adenocarcinoma harboring an epidermal growth factor receptor mutation. This breast metastasis was initially considered recurrent breast cancer and was later diagnosed based on histopathological and molecular examinations as metastasis from lung cancer.