MOLECULAR AND CLINICAL ONCOLOGY 5: 697-700, 2016

Subcutaneous metastasis after three surgeries for brain metastasis from lung cancer: A case report and review of the literature JI-QING QIU1*, YU CUI2*, LI-CHAO SUN3 and ZHAN-PENG ZHU1 Departments of 1Neurosurgery, 2Otolaryngology and 3Emergency, First Hospital of Jilin University, Changchun, Jilin 130021, P.R. China Received July 25, 2016; Accepted September 23, 2016 DOI: 10.3892/mco.2016.1039 Abstract. Lung cancer is a common malignancy that is frequently associated with distant subcutaneous metastasis. However, reports of subcutaneous metastasis of lung cancer after three surgeries for recurrent brain metastasis are scarce. The present study describes the case of a 49‑year‑old female patient who was admitted to our hospital with a cutaneous mass. The patient had a history of lung cancer and had undergone three surgeries for brain metastases. The subcutaneous mass was considered to be an implantation metastasis from the previous brain metastases. The cutaneous mass was grossly resected and histopathological examination revealed adenocarcinoma. This case highlights the need to perform a comprehensive analysis for suspected subcutaneous masses in lung cancer patients. Furthermore, pathological examination is crucial for accurate diagnosis and timely treatment. Introduction Lung cancer is one of the most common types of cancer worldwide, it is highly aggressive and has a high rate of distant metastasis (1). Subcutaneous metastasis from lung cancer has been well described (2); however, reports of subcutaneous metastasis of lung cancer after three surgeries for recurrent brain metastasis are scarce. We herein report a rare case of subcutaneous metastasis from pulmonary adenocarcinoma and provide a brief review of the relevant literature.

Correspondence to: Dr Zhan-Peng Zhu, Department of Neurosurgery, First Hospital of Jilin University, 71 Xinmin Street, Changchun, Jilin 130021, P.R. China E-mail: [email protected] *

Contributed equally

Abbreviations: MRI, magnetic resonance imaging; CT, computed tomography; TTF-1, thyroid transcription factor-1; CK, cytokeratin

Key words: subcutaneous mass, implantation metastasis, lung cancer, surgery

Case report A 49-year-old female patient was admitted to our hospital due to a fast-growing mass in the left temporal scalp at a craniotomy site (Fig. 1). The mass was round and adhered firmly to the scalp tissues. The patient was aware of the swelling as it caused her pain. A routine magnetic resonance imaging (MRI) revealed recurrent lesions in the left temporal and parietal lobes and a separate large nodular mass in the subcutaneous tissue coinciding with the site of the previous craniotomy (Fig. 2). In 2011, a lung computed tomography (CT) scan at another hospital revealed a 2.4-cm mass in the upper lobe of the left lung. Fine-needle aspiration cytology revealed pulmonary adenocarcinoma. The patient did not undergo surgery due to enlarged mediastinal lymph nodes, but was treated with radiosurgery (5 years) and chemotherapy (2 years). The subsequent CT scan demonstrated no residual or recurrent adenocarcinoma in the lung. In March, 2013, a routine MRI scan at another hospital revealed brain metastases in the left temporal and parietal lobes. The patient underwent subtotal resection of the tumors and decompressive craniectomy at the First Hospital of Jilin University (Changchun, China). In May, 2014 and August, 2015 the patient suffered recurrent brain metastases in the left temporal lobe, which were resected. The pathological diagnosis was adenocarcinoma. In November, 2015, the patient was admitted to our hospital due to a fast-growing mass in the left temporal scalp at the craniotomy site. The patient's medical history was unremarkable, apart from her father having been a heavy smoker for 30 years. The physical and neurological examinations were normal. There were no other metastases. The laboratory test results for tumor markers were as follows: Carcinoembryonic antigen, 191.6 ng/ml (normal,

Subcutaneous metastasis after three surgeries for brain metastasis from lung cancer: A case report and review of the literature.

Lung cancer is a common malignancy that is frequently associated with distant subcutaneous metastasis. However, reports of subcutaneous metastasis of ...
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