초록
본 증례에서 환자는 폐렴 치료 중 갑자기 발생한 복통을 주소로 급성 충수염을 진단받고 수술을 시행 받았다. 그 후 조직 검사 결과 소세포암으로 진단되었고 폐병변에 대해 추가적인 검사 결과 소세포폐암이 진단된 경우이다. 저자들은 소세포폐암의 충수 전이를 국내에서 처음으로 경험하여 문헌고찰과 함께 보고하는 바이다.
The incidence of appendiceal metastatic cancer is quite low. In particular, in small cell lung cancer, there is a very low incidence of a metastasis to the appendix. A 75-years old man with right lower quadrant pain, cough and sputum was transferred to our hospital. Abdominal CT revealed acute appendicitis with a perforation. The patient underwent surgery. The frozen sections of the tissue obtained during surgery, indicated a malignancy, but a right hemicolectomy was not performed due to the patient's poor general condition. The histology findings of the appendix were identified as a small cell carcinoma. The abdominal CT scan and chest x-ray at admission day showed a mass in the right lower lobe, and a further evaluation of the lesion was performed including positron emission tomography and flexible bronchoscopy with a biopsy. The pathology findings of the lung mass were also small cell lung cancer. The specimens from both sites stained positive for cytokeratin, cluster designation 56, synaptophysin, chromogranin-A and thyroid transcription factor 1. It was concluded that the appendiceal small cell cancer originated from the lung.