Introduction A number of infections may be diagnosed from the characteristic appearances seen in biopsy specimens. In some cases, the diagnosis may first be suspected when a biopsy is examined by light microscopy. In other cases, the clinician suspects an…
Introduction In developed countries, where the major pyogenic infections have been brought more or less under control, chronic inflammatory conditions result in a huge burden of morbidity and mortality. In less industrialised countries, certain infections, such as tuberculosis, typically cause…
Introduction Inflammation is an almost universal response to tissue damage by a wide range of harmful stimuli, including mechanical trauma, tissue necrosis and infection. The purpose of inflammation is to destroy (or contain) the damaging agent, initiate repair processes and…
Introduction In response to environmental changes, cells have to adapt in the face of physiological and pathological stimuli that seek to disturb their normal homeostatic milieu. This process is called cellular adaptation and includes mechanisms such as an increase in…
Overview of the practice of pathology Pathology, also referred to as histopathology, anatomical pathology or morbid anatomy, is the study of abnormal or diseased tissues and organs. This book is intended for the student approaching histopathology for the first time…