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| Correlation between the imaging features of intracranial hemorrhagic metastases from lung cancer andthe pathological types of the primary tumor |
| WANG Sheng-hai1, WU Peng2, CHEN Hai-hai2, ZHANG Zhen-xian2, LI Pei-ling1 |
| 1.Department of Radiology, the First Affiliated Hospital of China Medical University, Shenyang 110001, China;2.Department of CT Diagnosis, Yan’an People’s Hospital, Yan’an Shaanxi 716000, China |
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Abstract Objective: To investigate the relationship between the pathological types of lung cancer and the number of intracranial hemorrhagic metastases. Methods: The clinical imaging findings of 43 cases of intracranial hemorrhagic metastases from lung cancer confirmed by pathology were retrospectively analyzed, and the correlation between imaging features of intracranial hemorrhagic metastases from lung cancer and the pathological types of the primary tumor were evaluated. Results: All 43 cases of intracranial hemorrhagic metastases showed hematoma, and 29 cases of them showed hemorrhage within or around tumor, 20 cases of tumor edge were not very clear, 9 cases of tumor signal range is larger, enhanced MRI showed a ring or patchy enhancement. In addition, there was no obvious enhancement in 14 cases. The intracranial hemorrhagic metastases from adenocarcinoma (20 cases of multiple lesions, 4 cases of single lesion), from small cell carcinoma 14 cases(3 cases of multiple lesions, 11 cases of single lesion), from squamous cell carcinoma 4 cases(1 case of multiple lesions, 3 cases of single lesion), and from large cell neuroendocrine carcinoma 1 case (single lesion). Statistically, the ratio of adenocarcinoma and small cell carcinoma with hemorrhagic brain metastasis was significantly higher than that of squamous cell carcinoma and Large cell neuroendocrine carcinoma, and there was no significant difference between adenocarcinoma and small cell carcinoma. 5 cases of all patients were misdiagnosed. Conclusion: The MR imaging findings of intracranial hemorrhagic metastases from lung cancer have certain features, and enhanced MRI is helpful for qualitative diagnosis of brain metastasis. The intracranial hemorrhagic metastases from lung cancer was correlated with pathological types of the primary tumor. Adenocarcinoma and small cell carcinoma complicated with hemorrhage more common, squamous cell carcinoma and large cell carcinoma is relatively less.
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Received: 04 February 2015
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2015, Vol. 26 
