To improve the poor prognosis of pancreatic ductal adenocarcinoma (PDAC), diagnosis early-stage PDAC is essential. In particular, high-grade intraepithelial neoplasia/carcinoma in situ (HG-PanIN/CIS) best option. However, it almost impossible to directly observe HG-PanIN/CIS. Thus, identifying a secondary imaging finding due disorder important. Focal parenchymal atrophy (FPPA) and hypoechoic ar...

The etiology and pathogenesis of human transitional cell carcinoma (TCC) remain unknown at the present time. While many carcinogens can induce bladder carcinoma in animal experimental studies, the only well-established carcinogens in human beings are tobacco smoke and arylamines.[1] Experimental studies in animals have demonstrated that invasive urothelial carcinoma is preceded by a sequence of...

Men with congenital absence or bilateral partial aplasia of vas deferens, or those with failed or surgically unreconstructable obstructions or azospermic men with testicular failure or genetic cause can now be treated by using sperm retrieval techniques in conjunction with in vitro fertilization/intra cytoplasmic sperm injection (ICSI/ IVF). These techniques are: Microsurgical epididymal sperm ...

OBJECTIVE To evaluate characteristics of global hypomethylation in evolution of cervical cancer. MATERIALS AND METHODS Eight cases of squamous cell carcinoma (SCC) and seven cases of carcinoma in situ (CIS) were studied. Each of the SCC samples contained CIS, and all SCC and CIS samples contained normal ectocervical epithelium. Microdissection was performed to separate normal epithelium, CIS ...

AIMS To assess the presence of carcinoma in situ (CIS) in patients with nasopharyngeal carcinoma (NPC) and to see if the number of biopsy sites facilitates detection of CIS. METHODS Formalin fixed, paraffin wax embedded biopsy specimens (n = 285) from 187 patients with NPC in 1987 were studied for the presence of CIS as well as for the histological assessment of the subtype of CIS. RESULTS ...

BACKGROUND An increased risk of testicular cancer in men with infertility and poor semen quality has been reported. Our aim was to investigate the prevalence of testicular nodules and cancer in azoospermic subjects with different spermatogenetic patterns. METHODS A total of 1443 consecutive infertile men were investigated, out of which 145 (10.0%) were found to be azoospermic. By using clinic...

BACKGROUND Bronchial intraepithelial lesions may be precursors of central airway lung carcinomas. Identification and early treatment of these preinvasive lesions might prevent progression to invasive carcinoma. METHODS We systematically reviewed the literature to develop evidence-based recommendations regarding the diagnosis and treatment of intraepithelial lesions. RESULTS The risk and tim...

Testicular metastases are a rare finding. Typically, a testicular metastasis will present as a complication of progressive disease or as a primary sign of malignancy. Excluding lymphoma and leukemia, prostate cancer is the most common primary site that metastasizes to the testes. Testicular metastases resulting from squamous cell carcinoma of the lung have rarely been reported in previous liter...