The Sun's Rays as a Cause of Disease

Field Cancerization: Something New Under the Sun

Mutations in keratinocyte and melanocyte precursors that are caused by extensive sun exposure are well-established contributors to skin cancer. Now Hu et al. provide evidence that the sun's harmful rays may also cause tumor-promoting epigenetic modifications in dermal fibroblasts, highlighting further the importance of tumor-stroma interactions in cancer.

An Overview of Technological Developments in Medical Applications of X-Rays and Radioactivity

The years 1895 to 1898 were momentous for their impact on health and human well beings. First, Wilhelm Roentgen noted a glowing fluorescent screen, caused by invisible rays. This event subsequently led to the discovery of X-rays in 1895, and thus the birth of the “atomic age”. Next Becquerel’s investigations of these mysterious rays led to his experiments with uranium salt crystals. He th...

Observations on the Effects of the Sun's Rays on the Human Body

Radiographic Presentations of Intussusception in Plain Abdominal X-Ray

Intussusception is the most common cause of intestinal obstraction in children aged 3 months to 6 years. Complete understanding of its clinical and radiographic manifestations can play a major role in the early diagnosis and treatment and prevents its complications. In this study plain abdominal X-rays of 51 patients with intussusception were evaluated. Suggestive radiographic signs of the dise...

گزارش یک مورد انسداد مکانیکی روده به دنبال آپاندیسیت گانگرنه

  Background : Mechanical obstruction is the most common surgical disease of the small intestine , which can be potentially fatal . However appendicitis is very rare cause of intestinal obstruction and is usually . In rare cases of appendicitis, symptoms of small intestine obstruction can be more predominant than the appendicitis symptoms . This may lead to delayed diagnosis of appendicitis and...