Head and Neck
Fig. 4.1 Thyroid cyst fluid (Diff-Quik stain, high power). Hemosiderin-laden macrophages in a background of watery colloid. Note that hemosiderin stains deep blue with Diff-Quik stain. Fig. 4.2 Benign follicular/colloid…
Body Fluids
Predominantly neutrophils Predominantly eosinophils Acute pneumonia (empyema) Acute peritonitis Fungal infection Mycobacterial infection Penetrating injury Perforated viscera or intrathoracic rupture of esophagus Neoplasm Mimic: Karyorrhectic debris from high-grade lymphomas or…
CSF and CNS Cytology
Fig. 10.1 Common findings of normal and contaminated CSF. (a) Gross appearance of CSF. Normal (left) and blood-diluted (right) cerebrospinal fluid. (b) (Wright-Giemsa stain, high power). Normal CSF. Normal CSF…
Artifacts, Contaminants, and Mimics in Cytology
Artifacts Preparation artifacts Preservation, fixation, and/or staining artifacts Smearing or cytospin artifacts Degenerative changes Air and/or water bubbles Procedure-related artifacts Dilution with blood and/or bone marrow Crush artifact Obscuring necrotic…
Liver, Bile Ducts, and Pancreas
Location Main differential diagnosis Liver Infection Cysts Vascular lesions Mesenchymal neoplasms Focal nodular hyperplasia Hepatic adenoma Hepatoblastoma Hepatocellular carcinoma Metastatic tumors Bile duct Infection Cholangitis, pancreatitis, or other inflammatory changes …
Bone and Soft Tissue
Feature Benign lesions Malignant lesions Pattern of growth Pushing Infiltrative No extension or penetration into surrounding bone Permeation and destruction of surrounding bone Borders of lesion Well circumscribed Ill-defined, moth-eaten…
Fine Needle Aspiration in Pediatric Patients: Approach and Technique
Fig. 2.1 Supplies for pediatric FNAs. Multiple supplies are needed during pediatric FNAs because of the variety of ancillary studies that may be required. It is usually helpful to have…
Introduction
• Geographic location (resource-limited, resource-rich) • Type of practice (academic, community) • Presence of a free-standing pediatric hospital • Organization of practice (subspecialty based or general pathology) • Clinical environment (experience with and acceptance of…
Ultrasound Evaluation of Ovaries
(1) Department of Fetal Medicine and Obstetric & Gynecological Ultrasound, Manipal Hospital, Bangalore, Karnataka, India Ovaries are bilateral ovoid masses on either side of the uterus that have a…
Ultrasound Evaluation of Endometrium
(1) Department of Fetal Medicine and Obstetric & Gynecological Ultrasound, Manipal Hospital, Bangalore, Karnataka, India Endometrium is the mucous membrane that lines the inside of the uterus. It has…
