A rare case of malignant solitary fibrous tumor in prostate with review of the literature

Diagnostic Pathology

Table 1 Immunohistochemical features of spindle cell lesions of the prostate

	pankeratin	SMA	Desmin	Myogenin	CD34	PSA	PgR	CD117	STAT6
STUMP	neg	neg/pos	neg/pos	neg	pos	neg	pos	neg	neg
PSS	neg	neg/pos	neg/pos	neg	pos	neg	pos	neg	neg
SMT	neg/pos	pos	pos	neg	neg	neg	pos/neg	neg	neg
IMT	neg/pos	pos	pos	neg	neg	neg	neg	pos/neg	neg
SFT	neg	neg/pos	neg	neg	pos	neg	pos/neg	neg	pos
GIST	neg	pos/neg	pos/neg	neg	pos	neg	neg	pos	neg
SC	pos/neg	neg/pos	neg/pos	neg	neg	pos/neg	neg	neg	neg

STUMP stromal tumor or uncertain malignant potential, PSS prostatic stromal sarcoma, SMT smooth muscle tumors, IMT inflammatory myofibroblastic tumor, SFT solitary fibrous tumor, GIST gastrointestinal stromal tumor, SC sarcomatoid carcinoma, RMS rhabdomyosarcoma, SMA smooth muscle actin, CD34 cluster of differentiation 34, PSA prostate-specific antigen, PgR progesterone receptor, CD117 cluster of differentiation 117, STAT6 signal transduction and activation of transcription 6

ISSN: 1746-1596