Malignant phyllodes tumor with pleomorphic liposarcomatous stroma diagnosed by fine needle aspiration cytology: a case report.
BACKGROUND
Liposarcomatous differentiation within a phyllodes tumor is extremely rare. Cytologic and histologic findings of a case of malignant phyllodes tumor with liposarcomatous stroma of the breast are presented.


METHODS
A 45-year-old female had a malignant phyllodes tumor with pleomorphic liposarcomatous stroma diagnosed by fine needle aspiration (FNA) cytology. The cytologic findings were representative of the histologic features.


CONCLUSIONS
Malignant phyllodes tumor of the breast can be diagnosed by FNA. It is very important to acknowledge the morphologic variants of sarcomatous stroma and to recognize the cytologic features of such rare tumors to prevent misdiagnosis as primary sarcomas of the breast. Preoperative diagnosis is important in planning the most appropriate type of treatment. It is also important to follow patients for long periods for recurrence and metastasis after surgery for this tumor.
Vera-Alvarez
Jesús
J
Department of Pathology, San Jorge Hospital, Huesca, Spain.
Marigil-Gómez
Miguel
M
Abascal-Agorreta
Manuel
M
García-Prats
María Dolores
MD
López-López
José Ignacio
JI
Pérez-Ruiz
Javier
J
D001707:Biopsy, Needle; D001943:Breast Neoplasms / Q000473:pathology*; D005260:Female; D006801:Humans; D008080:Liposarcoma / Q000473:pathology*; D008875:Middle Aged; D003557:Phyllodes Tumor / Q000473:pathology*