Extra-mammary Paget's disease may occur simultaneously in the genital area and, unilaterally or bilaterally, in the axillary region (1). Such cases have been reported as double or triple extra-mammary Paget's disease. We describe here a patient with quadruple extra-mammary Paget's disease, who developed the erythematous eruption in the genital, bilateral axillary and umbilical regions. A 73-yea...

Energy restriction (ER) has documented beneficial effects on numerous diseases including cancer, yet the mechanism(s) that accounts for these effects is unknown. Experiments were designed to determine the effect of ER: (i) on the growth and development of the mammary gland; (ii) on the growth of carcinomas induced in the mammary gland by treatment with 1-methyl-1-nitrosourea (MNU); (iii) on rat...

Folic acid supplementation may prevent the development of cancer in normal tissues but may promote the progression of established (pre)neoplastic lesions. However, whether or not folic acid supplementation can promote the progression of established (pre)neoplastic mammary lesions is unknown. This is a critically important issue because breast cancer patients and survivors in North America are l...

PURPOSE We aimed to explore the value of contrast-enhanced ultrasonography (CEUS) in guidance of percutaneous biopsy of anterior mediastinal lesions. METHODS Ninety patients with solitary anterior mediastinal lesions (55 males, 35 females; mean age, 46±4 years) were included. Patients were randomly divided into CEUS group (n=45) and conventional ultrasonography (US) group (n=45). Real-time US...

This study is a case report of bilateral perivascular chorioretinal lesions associated with Bartonella henselae. A 37-year-old woman presented with headache and blurred vision in both eyes aggravating occasionally during five years. She was otherwise healthy, with best-corrected visual acuities were 20/20 in both eyes. History of close contact with cats was more than merely eye-catching upon ex...

Receptor Activator of NF-kappa B (RANK) pathway controls mammary gland development in mice but its role in mammary stem cell fate remains undefined. We show that constitutive RANK signaling expands luminal and basal mammary compartments including mammary stem and luminal progenitor cell pools and interferes with the generation of CD61+ and Sca1+ luminal cells and Elf5 expression. Impaired mamma...

Background: There is in Brazil little information about histopathological features of feline mammary neoplasms. Especially in some Brazilian Northeastern locations such as Rio Grande do Norte (RN), there is complete absence of data regarding feline mammary neoplasm microscopy. Accordingly, this study aimed to describe the histopathology of mammary gland tumors in native domestic cats from the s...

The 2016 annual National Toxicology Program Satellite Symposium, entitled "Pathology Potpourri" was held in San Diego, CA, at the Society of Toxicologic Pathology's (STP) 35th annual meeting. The goal of this symposium was to present and discuss challenging diagnostic pathology and/or nomenclature issues. This article presents summaries of the speakers' talks, along with select images that were...