body fluids

Macrophages

Choroidal cells

Ependymal cells

Malignant cells: hematologic origin

Malignant cells- non-hematologic origin

Segmented neutrophils

Mesothelial cells- normal cells lining membranes

Squamous epithelial cells

Clue cells

White blood cells

Trichomonas vaginalis

Yeast cells showing mycelial forms

Macrophages purpose

Remove cellular debris and foreign objects, such as RBC

Increased in previous cranial hemorrhage

Choroidal cells purpose

Epithelial lining of choroid plexus

Singularly and clumps

Nucleoli absent, nuclei uniform appearance

Ependymal cells purpose

Ventricle and neural canal linings

Less defined cell membrane

Clusters

Nucleoli present

Malignant cells hematologic purpose

Lymphoblasts, myeloblasts, monoblasts

Acute leukemias

Nucleoli present

Lymphoma cells- large and small lymphocytes; clusters of large, small or mixed cells; nuclei cleaved with prominent nucleoli present

Malignant cells nonhematologic purpose

Metastatic carcinoma cells- lungs, breast, renal, GI, primary CNS tumors

Distinguishing characteristics

Fusing of cell walls, nuclear irregularities, hyperchromatic nucleoli, seen in clusters