ABSTRACT: It is reported the occurrence of enzootic hematuria (EH) in buffaloes Brazil after performing an epidemiological survey and clinicopathological analises. To date, EH caused by ingestion Pteridium esculentum subsp. arachnoideum, a radiomimetic plant popularly known as “bracken fern”, has not been described this species Brazil. Bovine responsible for high economic losses Brazil’s Southe...

Spindle cell neoplasms are defined as neoplasms that consist of spindle-shaped cells in the histopathology. Spindle cell neoplasms can affect the oral cavity. In the oral cavity, the origin of the spindle cell neoplasms may be traced to epithelial, mesenchymal and odontogenic components. This article aims to review the spindle cell neoplasms of the oral cavity with emphasis on histopathology. ...

BACKGROUND Clear cell carcinoma of the bladder is a rare variant of urinary bladder adenocarcinoma. We report a case of a patient with clear cell carcinoma of the bladder and a concordant right upper lobe pulmonary adenocarcinoma with clear cell features, and we address the role of immunohistochemistry and cytogenetic analysis in distinguishing the two primary malignancies. CASE PRESENTATION ...

We have established a transplantable tumor line, R198, de rived from a papillary (transitional cell) carcinoma of the human urinary bladder. In nude mice, the tumor line exhibits properties attributable to both prostatic and transitional epithelia. In tumorbearing animals given androgens, the neoplasm has a rapid growth rate, possesses low levels of measurable androgen receptors, produces tartr...

OBJECTIVES Neuroendocrine tumors (NET) are cancers found in the bronchopulmonary tract, where they were first described in 1926. The tumors are associated with poor prognosis due to their high metastatic potency even after radical treatments associated with other neo- or adjuvant therapies. NET of the urinary bladder is a rare tumor and accounts for 0.5% of bladder tumors. METHODS The study...

Chondrosarcoma is an uncommon malignant neoplasm of cartilaginous origin. Extraskeletal chondrosarcomas are far less common than their intraosseous counterparts, representing approximately 2% of all soft tissue sarcomas. Clinically, extraskeletal mesenchymal chondrosarcoma (EMC) shows a very fast progression. It also has a high incidence of local recurrence and distant metastasis. The most comm...

Urinary tract cancers are common and comprise a gamut of lesions ranging from small benign tumors to aggressive neoplasms with high mortality. The predominant urinary tract malignancy is bladder cancer. The clinical challenge is early detection and adequate follow-up because recurrence is high and delayed diagnosis is associated with poor prognosis. Primary care physicians form a key part of th...

Bladder carcinoma in situ (CIS) is a rare, high-grade intraepithelial neoplasm with a high tendency of progression and unpredictable clinical course. The aim of this study was to evaluate the incidence, treatment and clinical outcome of patients with CIS during a 10-year period. Medical records of 1062 patients with primary bladder cancer and 847 patients with recurrent bladder cancer that unde...

Ovarian metastasis was described the first time by Friedrich Ernst Krukenberg in 1896. Even if the historical timeline dates back to sir James Paget who had described the process in 1854 [1]. The tumor was metastazing from gastric cancer. Consequently, all metastatic ovarian cancers had been referred to as Krukenberg tumors [2]. Actually, Krukenberg tumors account for approximately 15% of malig...

The collision tumor is defined by Meyer as that arisen from the accidental meeting and eventual intermingling of two independent neoplasms, which is quite rare. Most of them occur in the junction of different epithelial types of tissue such as oral cavity, esophagogastric junction, anorectaljunction and cervix, while collision tumors occurring in the liver, gallbladder, pancreatic, urinary blad...