Multilocular cystic renal cell carcinoma is characterized by small aggregates of individual clear cells within the fibrous septa (sometimes resembling macrophages or lymphocytes surrounded by ...

A 72-year-old man developed a bluish, painless and rapidly enlarging lesion on the palm side of his ring finger, over the course of a few weeks. It was solid and 20 mm in diameter on examination ...

Active brown adipose tissue helps maintain normal body temperature in newborn infants. It is believed that this tissue regresses with increasing age and is completely lost by the time a person ...