The Bone Marrow
The Bone Marrow Xiangdong Xu, M.D., Ph.D. Anjum Hassan, M.D. Acute lymphoblastic leukemia (ALL) is the most common malignancy in children and classically presents with pancytopenia, bleeding, and signs of…
The Gastrointestinal Tract
The Gastrointestinal Tract Pierre A. Russo, M.D. EMBRYOLOGY The gastrointestinal tract forms during the 4th week as the cephalocaudal and lateral folds of the trilaminar germ disk develop and incorporate…
The Female Reproductive System
The Female Reproductive System Michael K. Fritsch, M.D., Ph.D. Mariana M. Cajaiba, M.D. Abnormalities confined to the genital tract are quite unusual in prepubertal girls, and such disorders seldom come…
The Pancreas
The Pancreas Mariko Suchi, M.D., Ph.D. ORGANOGENESIS AND EXOCRINE HISTOGENESIS During week 4 of gestation, the ventral foregut gives rise to two pancreatic buds at the junction of the hepatic…
The Respiratory Tract
The Respiratory Tract Louis P. Dehner, M.D. J. Thomas Stocker, M.D. Haresh Mani, M.D. D. Ashley Hill, M.D. Aliya N. Husain, M.D. DEVELOPMENT OF THE LUNG The lung begins as…
The Male Reproductive System, Including Intersex Disorders
The Male Reproductive System, Including Intersex Disorders Hikmat A. Al-Ahmadie, M.D. Rohit Mehra, M.D. THE TESTIS Testicular Development and Disorders Normal sexual development and differentiation are the result of a…
The Cardiovascular System
The Cardiovascular System Ivan P. Moskowitz, M.D., Ph.D. Selene Koo, M.D., Ph.D. Aliya N. Husain, M.D. Kathleen Patterson, M.D. CONGENITAL MALFORMATIONS OF THE CARDIOVASCULAR SYSTEM Incidence The heart, first recognizable…
The Nervous System
The Nervous System Christopher Dunham, M.D. Arie Perry, M.D. GENERAL NEUROPATHOLOGIC PROCESSES AND PRINCIPLES The practice of neuropathology demands an extensive knowledge of normal central nervous system (CNS) cytology and…
