ABSTRACT Solitary fibrous tumors of the pleura usually have a benign behavior, although some may present malignant characteristics - recurrences, metastases, and paraneoplastic syndromes. When a solitary fibrous tumor is responsible for the development of hypoglycemia, we have a case of Doege-Potter syndrome. We describe a case of a male...
ABSTRACT Hemangioendothelioma is a rare vascular tumor whose etiology has not yet been defined. Currently, it is known to affect different sites, such as the abdominal-pelvic cavity. It is also known to present intermediate characteristics to hemangioma and angiosarcoma. In recent studies, 50-76% of patients are asymptomatic. Surgical treatment is...
ABSTRACT We report a case of a patient with metastatic colon cancer without central nervous system metastases who presented with a spontaneous intraparenchymal hematoma using bevacizumab, without coagulation disorders or metastatic cells in the pathological examination. Bevacizumab is a monoclonal antibody against vascular endothelial growth factor (VEGF) that inhibits binding...
ABSTRACT Penile melanoma is a rare event, responsible for less than 1.4% of penile cancers. In general, it is late diagnosed and the treatment is usually aggressive. The authors present a 66-year-old Caucasian man who had an ulcerated penile lesion for 1 year, diagnosed as melanoma after biopsy and treated...
ABSTRACT Introduction: Primary breast melanoma is a rare condition and most of cases are associated with melanoma overlying the skin of the breast or metastatic disease site. Primary breast parenchyma melanoma (PBPM) is extremely uncommon with only seven cases reported in the last four decades. Case report: A 44-year-old woman presented with...
ABSTRACT Case report of three patients with inflammatory bowel disease who underwent treatment with biology therapy and developed respectively: non-Hodgkins lymphoma, colorectal adenocarcinoma, and cholangiocarcinoma after long-term follow-up. They demonstrated that data are currently inconclusive about the development of long-term anti-TNF neoplasias.
ABSTRACT The present report describes a case of a neuroendocrine tumor of the rectum with liver metastasis in a 35-year-old woman. The rectum is the second most common location of gastrointestinal neuroendocrine tumors and is typically diagnosed through a screening colonoscopy finding for non-tumor related symptoms. Surgical treatment is indicated...
ABSTRACT Objectives: Primitive neuroectodermal tumors (PNETs) are aggressive neuroectodermal neoplasms and are originated from neuroectodermal tissues. They belong to a larger group of tumors known as Ewing tumors and are unusual in adult population. This case reports PNET in the oldest patient quoted in literature and established it as a differential...
ABSTRACT Peripheral primitive neuroectodermal tumors (pPNETs) are part of the Ewing sarcoma family. A few more than 30 cases of pPNETs originating on the pancreas have been reported in the consulted literature. We report a locally advanced pancreatic pPNET, with the longest follow-up and survival in the consulted literature, considering...
ABSTRACT Sarcoidosis is often an asymptomatic condition. Most patient are unaware of their diagnostic. It has specific pathological characteristics at microscopic evaluation; however, in imaging tests it can mimic other conditions. Breast cancer is the most common cancer among women. Staging breast cancer patients with sarcoidosis can be challenging as...
