Synovial sarcoma (SS) is a highly malignant tumor that accounts for 10% of all soft-tissue sarcomas. Primary SS arising from the lung is extremely rare, and the prognosis is poor. We report a case of pulmonary SS presenting with a mass lesion invading the right upper and middle lobes, extending to the mediastinum and the chest wall. After tru-cut biopsy, surgical resection was performed. The final diagnosis was SS (biphasic type) based on histological and immunohistochemical findings. There are no guidelines for optimal treatment due to the rarity of these tumors. Current treatment includes surgery and adjuvant chemotherapy and/or radiotherapy.
Biopsy ; Chemotherapy, Adjuvant ; Diagnosis ; Immunohistochemistry ; Lung* ; Mediastinum ; Prognosis ; Radiotherapy ; Sarcoma ; Sarcoma, Synovial* ; Thoracic Wall

Although the lung, liver, or bones are the most common location for distant metastases in breast cancer patients, metastases to the intestinal tract are very rarely recognized in the clinic. We will present an unusual case of colonic metastasis from a carcinoma of the breast that mimics a primary intestinal cancer, along with a through review of English language medical literature. Despite the fact that isolated gastrointestinal (GI) metastases are very rare and much less common than benign disease processes or second primaries of the intestinal tract in patients with a history of breast cancer, metastatic disease should be given consideration whenever a patient experiences GI symptoms.
Tomography, X-Ray Computed/methods ; Neoplasms, Second Primary/diagnosis ; Neoplasm Metastasis ; Intestinal Neoplasms/*diagnosis ; Humans ; Female ; Diagnosis, Differential ; Colonic Neoplasms/*diagnosis/*secondary ; Carcinoma/diagnosis/*pathology ; Breast Neoplasms/diagnosis/*pathology ; Breast/pathology ; Adult