Journal of Korean Society of Ultrasound in Medicine 2006;25(1): 1-10.
TRUS Findings of Prostate Tumor or Tumor Like Lesions.
Hak Jong Lee, Jung Min Jang, Seung Hyup Kim
Department of Radiology, Seoul National University College of Medicine, Korea. hakjlee@radiol.snu.ac.kr
  Published online: March 1, 2006.
ABSTRACT
Tumors or tumor-like lesions in the prostate raise questions concerning their histogenesis and they may have prognoses dissimilar to those of prostatic adenocarcinoma. Several neoplasms involving the prostate have been described and characterized in recent years. In addition to adenocarcinoma, they include mucinous cystadenocarcinoma, neuroendocrine cancer, lymphoma, spindle cell neoplasm, squamous cell carcinoma, transitional cell carcinoma, and benign prostatic hyperplasia (BPH) mimicking malignancy. In addition, infectious conditions such as tuberculosis and some stages of prostatic abscess can also mimic prostate tumors. Radiologic findings overlap and have limited roles in the diagnoses of these entities. However, knowledge of these variable tumors and tumor-like conditions is helpful when making accurate radiologic diagnoses, which have important clinical implications for treatment and prognosis. Transrectal ultrasound (TRUS) and available pathologic images of unusual tumors and tumor-like lesions are demonstrated in this article.
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