Cystosarcoma phyllodes of the prostate: MRI findings

Abstract

Cystosarcoma phyllodes of the prostate is a rare, relatively benign sarcoma of the prostate. We describe the magnetic resonance imaging findings in an unusual case of cystosarcoma phyllodes which resulted in extensive local recurrence and sarcomatous degeneration. Although uncommon, radiologists should be aware of the existence of cystosarcoma phyllodes of the prostate.

Malignant phyllodes tumor of the prostate

“…Thirty‐six cases of phyllodes tumor of the prostate have previously been reported in the literature. 1–5 Phyllodes tumor of the prostate is histologically classified into benign, borderline and malignant catagories. 1 Benign phyllodes tumors show proliferating cellular stroma, with a low of zero mitotic rate and occasional cellular atypia.…”

“…Borderline cases histologically have features of intermediate characteristics of both types. As four cases of borderline types previously reported were followed up with a clinical course for the malignant category, 1,2,6,7 health professionals should be careful in following up the borderline cases. Young et al suggested that stromal mitotic activity may be a useful prognostic feature for phyllodes tumor of the prostate, 7 but in the case discussed by Yamada et al the patient had rare mitosis and died of a recurrent tumor.…”

“…To the best of our knowledge, thirty‐six cases of phyllodes tumor of the prostate, both benign and malignant, including 10 clinically and pathologically malignant cases have been reported in the world literature. 1–5 The median age of the previous patients was 53. Here we discuss the eleventh case, which was a patient who had a pathologically malignant phyllodes tumor, initially treated by pre‐ and postoperative radiation therapy.…”

Tumor filoide de la vesícula seminal: caso clínico y revisión de la literatura

“…Se presentan frecuentemente con síntomas del tracto urinario bajo, hematuria, hematospermia o masa al examen rectal [1][2][3] . Poseen características típicas pero no ú nicas en los estudios de imagen 4 . El tratamiento adecuado es la exéresis quirú rgica del tumor.…”

Nonepithelial Tumors and Tumor-Like Lesions of the Prostate Gland

“…When tested by immunohistochemistry the prostatic stromal cells are positive for androgen and progesterone receptors but not for estrogen receptors. [1][2][3] Many authors described lesions arising from the specialized prostatic stroma under several designations, including atypical stromal hyperplasia, 4,5 atypical stromal smooth muscle hyperplasia, 6 atypical fibromuscular hyperplasia, 7 phyllodes type of hyperplasia, [8][9][10][11][12] phyllodes tumor, 7,12-17 cystadeno-leiomyofibroma, 18 prostatic cystic epithelial stromal tumor, 19 cystosarcoma phyllodes, [20][21][22][23][24][25][26] pseudosarcomatous lesions of the prostate, 27 malignant phyllodes tumor of the prostate, 14,15,22,23,28,29 and stromal sarcoma of the prostate. 30 Gaudin and colleagues reported their experience with 22 tumors of the specialized prostatic stroma and proposed a unifying concept under which many of the previously described entities could be included.…”