Acetylcholine Receptor Antagonists
Figure 7-1 Dose-dependent effects of atropine. Low doses of atropine inhibit salivation and sweating, and the magnitude of these effects increases as the dosage increases. Higher doses produce tachycardia, urinary…
Introduction to Pharmacology
Figure 1–1 Relationship between pharmacokinetics and pharmacodynamics. Toxicology Toxicology is the study of poisons and organ toxicity. It focuses on the harmful effects of drugs and other chemicals, and on…
Brain, Spinal Cord, and Meninges
1. Neoplasm or not neoplasm: This hypercellular lesion is composed of pleomorphic cells with atypical nuclei, which indicate neoplasm. If the lesion were not neoplastic, other etiologic categories, including infectious, inflammatory,…
Testicular and Paratesticular Tumors
The vast majority of testicular tumors are of germ cell origin and, like the totipotent germ cells from which they arise, may differentiate along several pathways. The distinction of seminoma…
Uterine Corpus
MYOMECTOMY SPECIMENS Myomectomies are performed in women who wish to retain their uterus, usually to relieve symptoms produced by the neoplasm. Although there is no evidence to support this, myomectomies…
Mediastinum
Simple radiographic localization of a mediastinal mass has considerable value in and of itself. Substantial information is available on the relative likelihood of any given lesion in the three anatomically…
Nonneoplastic Pulmonary Disease
When infections are excluded, lung biopsy specimens for diffuse infiltrative pulmonary disease are most likely to be from patients with idiopathic interstitial pulmonary fibrosis or sarcoidosis (1). Most other conditions,…
Jaws, Oral Cavity, and Oropharynx
These residual odontogenic rests may be encountered in histologic evaluation of extracted teeth or in sections of tooth-bearing jaws. Odontogenic rests are typically round or strandlike in form (Fig. 19.2)….
