Obgyn Key

Brain Tumors and Spinal Tumors   Kenneth J. Cohen and Ian F. Pollack   Central nervous system (CNS) neoplasms are, as a group, the most common solid tumors of childhood,…

Chemotherapy and Radiation Therapy   Peter C. Adamson and Larry E. Kun   Over the last four decades of the 20th century, the cure rates for childhood cancer increased from…

Dental Emergency Care   Howard L. Needleman and Brian Grove   OROFACIAL TRAUMA EPIDEMIOLOGY Trauma to children’s teeth is a very common event.1 The prevalence of these injuries varies depending…

Physiologic Basis of Pulmonary Function   Daniel J. Weiner   The respiratory system is composed of many different cell and tissue types, including airways, lung parenchyma, respiratory muscles, nerves, and…

Calcium, Phosphorus, and Magnesium Metabolism   Allen W. Root   NORMAL MINERAL HOMEOSTASIS CALCIUM Calcium (Ca) is present largely (99%) in the skeleton as the hydroxyapatite crystal of calcium phosphate…

Melanocytic Lesions and Disorders of Pigmentation   Julie V. Schaffer and Seth J. Orlow   Melanocytic lesions are extremely common in pediatric patients. At least 1 melanocytic nevus develops by…

Cancer Survivorship and Recommendations for Follow-Up   Smita Bhatia and Anna T. Meadows   Five-year survival rates now approach 80%.1 This has resulted in a growing population of childhood cancer…

Oral Pathology   Andrew L. Sonis and Brian Grove   While dental caries and its consequences represent the most common oral pathology encountered in children, both localized and systemic conditions…

Metabolic and Genetic Disorders of the Liver   Frederick J. Suchy   The liver plays a central role in the biosynthesis and degradation of carbohydrates, lipids, and amino acids (see…

Disorders of the Foot   Charles E. Johnston   A common referral to a pediatric orthopedist is for a foot deformity that may or may not be symptomatic. Conditions range…