MTSCC is of low-grade malignancy. Some rare cases of lymph node metastasis and recurrence have been described. Two cases of MTSCC with sarcomatoid change have been described, one with widespread metastasis to distant organs, including lung and bone. A<unk> d component is characteristic of MTSCC, but the presence of significant pleomorphism with prominent nucleoli and mitotic activity, and necrosis should raise concern for a sarcomatoid change. Microscopic necrosis can be seen focally in MTSCC. Its significance is unknown. The presence of any necrosis should be mentioned in the pathological report.
Mucinous tubular and spindle cell carcinoma
Epithelial-myoepithelial carcinoma
Papillary adenocarcinoma
Clear-cell adenocarcinoma
Lymphoepithelioma-like carcinoma
Adenomatoid tumor
Hyalinizing clear cell carcinoma
Papillary tumor