 |  |  Pheochromocytoma: Diagnosis, Localization, and Treatment
Pheochromocytomas are rare but treacherous catecholamine-producing tumors, which if missed or not properly treated, will almost invariably prove fatal. Prompt diagnosis is, therefore, essential for effective treatment, usually by surgical resection. The manifestations are diverse and the tumor can mimic a variety of conditions, often... |  |  Color Atlas of Human Poisoning and Envenoming
The field of medical toxicology can be simply divided into animal and human poisonings from animal, plant,
or man-made sources. Even more precisely, toxinology is the study of poisoning and envenoming by biological
organisms, and toxicology is the study of human poisoning from manmade sources. Living organisms,
such as animals,... |