2011 Volume 25 Issue 6 Pages 639-642
We present a case of well-differentiated fetal adenocarcinoma. The patient was a 32-year-old female, experiencing cough symptoms from around November 2006. Chest radiography taken in January 2007 at a nearby clinic revealed a 20×25-mm tumor in the left middle lung field.
She underwent bronchoscopic examination. However, a definitive diagnosis was not established, and she was referred to our hospital. With the preoperative diagnosis of a lung tumor, left lower lobectomy with ND2a was performed. The tumor was finally confirmed as a well-differentiated fetal adenocarcinoma (pT1N0M0, stage I a), which is rarely observed in Japan or internationally. Well-differentiated fetal adenocarcinoma is generally of low-grade malignancy, and patients have a favorable prognosis.
