BACKGROUND Salivary duct carcinoma(SDC)is a rare,extremely aggressive malignancy that arises in the submandibular gland.It can metastasize locally early and therefore is an important differential diagnosis of metastat...BACKGROUND Salivary duct carcinoma(SDC)is a rare,extremely aggressive malignancy that arises in the submandibular gland.It can metastasize locally early and therefore is an important differential diagnosis of metastatic disease in cervical lymph nodes or specific lymphadenitis such as tuberculous cervical lymphadenitis.CASE SUMMARY We report a case of SDC in the submandibular gland that presented diagnostic difficulty.The lesion was coincidentally discovered through examination of the radiolucent area of the maxilla.Imaging failed to confirm the possibility of specific inflammation,leading us to execute an open biopsy to verify the diagnosis.The surgical specimen showed that the submandibular gland was primarily replaced with a calcified body.Following histological analysis and confirmation,we performed surgical resection,radiotherapy,and various chemotherapies.CONCLUSION Radiographic imaging characteristics of lymph node metastases of salivary gland cancer,especially of SDC,may resemble other cervical lymphadenitis;calcification at the submandibular gland is the landmark of SDC occurring at the submandibular gland.展开更多
Salivary duct carcinoma (SDC) is a rare, high-grade, aggressive malignancy, as having a morphologic resemblance to ductal carcinoma of the breast. We present here an atypical SDC of the parotid gland in a 63-year-old ...Salivary duct carcinoma (SDC) is a rare, high-grade, aggressive malignancy, as having a morphologic resemblance to ductal carcinoma of the breast. We present here an atypical SDC of the parotid gland in a 63-year-old man that was diagnosed from immunohistochemical findings. The immunohistochemistry was similar in the parotid lesion and pulmonary metastases in autopsy specimens, but only the latter showed a cribriform pattern and comedolike necrosis. Although the parotid tumor was treated with concurrent chemoradiotherapy and adjuvant chemotherapy for over 21 months, the patient died of respiratory failure caused by advanced pulmonary metastases.展开更多
文摘BACKGROUND Salivary duct carcinoma(SDC)is a rare,extremely aggressive malignancy that arises in the submandibular gland.It can metastasize locally early and therefore is an important differential diagnosis of metastatic disease in cervical lymph nodes or specific lymphadenitis such as tuberculous cervical lymphadenitis.CASE SUMMARY We report a case of SDC in the submandibular gland that presented diagnostic difficulty.The lesion was coincidentally discovered through examination of the radiolucent area of the maxilla.Imaging failed to confirm the possibility of specific inflammation,leading us to execute an open biopsy to verify the diagnosis.The surgical specimen showed that the submandibular gland was primarily replaced with a calcified body.Following histological analysis and confirmation,we performed surgical resection,radiotherapy,and various chemotherapies.CONCLUSION Radiographic imaging characteristics of lymph node metastases of salivary gland cancer,especially of SDC,may resemble other cervical lymphadenitis;calcification at the submandibular gland is the landmark of SDC occurring at the submandibular gland.
文摘Salivary duct carcinoma (SDC) is a rare, high-grade, aggressive malignancy, as having a morphologic resemblance to ductal carcinoma of the breast. We present here an atypical SDC of the parotid gland in a 63-year-old man that was diagnosed from immunohistochemical findings. The immunohistochemistry was similar in the parotid lesion and pulmonary metastases in autopsy specimens, but only the latter showed a cribriform pattern and comedolike necrosis. Although the parotid tumor was treated with concurrent chemoradiotherapy and adjuvant chemotherapy for over 21 months, the patient died of respiratory failure caused by advanced pulmonary metastases.
