Differential considerations of adenomyoepitheliom: Lobulated-shape, well-circumscribed solid mass on mammography * fibroadenoma * malignant myoepithelioma * spindle-cell carcinoma
* aggressive fibromatosis * other myofibroblastic lesions
of the upper aerodigestive tract mucosa.
1) Microscopically, the spindle-cell pattern in melanoma may be confused with that of sarcoma or spindle-cell carcinoma
Cutaneous carcinosarcomais a biphasic malignant tumor made up of both epithelial and mesenchymal components, (2,5,6,11,13,14) Our review of the literature revealed a lack of consensus regarding terminology, as this entity is variously referred to as spindle-cell carcinoma
, sarcomatoid carcinoma, metaplastic carcinoma, and pseudosarcoma.
When we diagnosed the malignant fibrous histiocytoma 2 years following radiation therapy for a spindle-cell carcinoma
, we questioned the original diagnosis.
They include atypical fibroxanthoma, spindle-cell carcinoma
, amelanotic malignant mucosal melanoma, osteosarcoma, fibrosarcoma, pleomorphic rhabdomyosarcoma, pleomorphic liposarcoma, dedifferentiated sarcomas, and glioblastoma multiforme.