Concomitance of pulmonary spindle cell carcinoma and sclerosing pneumocytoma in a woman: A case report.

RATIONALE

Pulmonary spindle cell carcinoma (PSCC) is a rare subset of pulmonary sarcomatoid carcinoma. PSCC is aggressive and has a poor prognosis. Pulmonary sclerosing pneumocytoma (PSP) is an asymptomatic slow-growing benign tumor, which usually occurs in middle-aged women.

PATIENT CONCERNS

Herein, we report a case of solitary PSCC, occurring concomitantly with PSP in a 74-year-old woman. The patient visited our institution with productive purulent cough, dyspnea after activity, and hemoptysis. Enhanced computed tomography revealed an inhomogeneous enhanced mass with central low-attenuation in the right upper lobe (RUL). The mass located in the right lower lobe (RLL) exhibited homogeneous enhancement.

DIAGNOSIS

These lesions were subsequently diagnosed as PSCC in the RUL and PSP in the RLL, following postoperative pathological examination.

INTERVENTIONS

We performed lobectomy for the RUL and wedge resection for the RLL in one procedure.

OUTCOMES

The patient did not experience complications after surgery. No radiological evidence of recurrence was observed on follow-up computed tomography performed within 7 months after the procedure.

LESSONS

This case fully reflects the importance of the differential preoperative diagnosis of benign and malignant solitary pulmonary nodules. However, a rare and aggressive malignant tumor may have imaging features typical of a lung abscess, which should be treated carefully.