INTRODUCTION Prostate cancer is the second most common neoplasm among men both worldwide and in Poland. In prostate cancer, bone metastasis is related to a poorer prognosis. A diagnosis of metastatic bone disease is important in prostate cancer patients prior to therapy. Prostate specific antigen (PSA) serum value is used both as a screening tool and for staging of prostate cancer. AIM To eva...

INTRODUCTION Pathologists are understandably concerned about failing to diagnose a malignant neoplasm. It is arguably as important, however, for them to recognize benign but deceptive lesions that mimic cancers. Overinterpretation of such pseudomalignant lesions may lead to unnecessary, radical surgery with attendant functional disability and even potential mortality. In this lecture we will ex...

We present a case of a 71-year-old man with prostate cancer who had no prior underlying liver disease. During metastatic evaluation, a solid mass in the liver was identified by computed tomography and ultrasound. Gadoxetic acid (Gd-EOB-DTPA)-enhanced magnetic resonance imaging demonstrated a well-defined, peripheral enhancing hepatic mass containing small cystic component. This lesion was diagn...

The solitary fibrous tumor (SFT) is a mesenchymal neoplasm first described by Klemperer and Rabin in 1931. It involves primarily the pleura, but has been described in the urinary bladder, limbs, thorax and abdomen, lungs, kidneys, prostate, meninges, mediastinum, and head & neck. In the head and neck, this tumor may involve the orbit, salivary glands, soft tissues, eyelids, mouth and nose, naso...

Angiomyolipoma (AML) is a type of tumor in the perivascular epithelioid cell neoplasm (PEComa) family. Epithelioid angiomyolipoma (EAML), having malignant potential, is considered a rare variant of angiomyolipoma. The most common site of EAMLs is kidney, and extra-renal EAMLs are very uncommon, with liver being the most common site.1 Other locations including retroperitoneum, uterus, liver, lun...

BACKGROUND Chronic inflammatory infiltrate (CII) might be involved in prostate cancer (PCA) and benign hyperplasia (BPH); however, its significance is controversial. Chronic inflammatory prostatitis type IV is the most common non cancer diagnosis in men undergoing biopsy because of suspected PCA. OBJECTIVE To evaluate potential associations of coexistent CII and PCA in biopsy specimens after ...

Pure small cell carcinoma of the prostate is a rare and aggressive neoplasm with poor prognosis. Only few cases had been reported in literature and mean survival is 5 months. We reported a case 68-year-old male patient presented with dysuria, and difficulty during urination of about 2-months duration. The prostatic core needle biopsy result was reported as pure small cell neuroendocrine carcino...

Since the studies of Gutman and Gutman (2, 3), measurements of the serum acid phosphatase have become a recognized and widely used ancillary procedure for the diagnosis of cancer of the prostate and a practical means for the evaluation of the functional status of the tumor in many patients with metastasizing cancer of the prostate. While an abnormally increased value of serum acid phosphatase i...