Formed Elements ID

RBCs:

Dysmorphic RBCs

WBC (monocyte or macrophage)

Renal Tubular Cells:

• Small, eccentric nucleus

Spermatozoa

• not usually reported

Squamous Epithelial Cell

• Size is 30-50 microns

Transitional Epithelial Cell

Fatty Cast

Cellular Cast (RTE or Neutrophil)

Granular Cast

Hyaline Cast

RBC Cast

Waxy Cast

Cystine Crystals

• Acidic urine

Sulfonamide Crystals

• Acidic urine

• from medication

• Note sheaves of wheat or fan formation

Uric Acid Crystal

• Acidic urine

Amorphous Urates

• Acidic urine

Bilirubin Crystals

• acidic urine

Calcium Oxalate

• dihydrate form

• Acidic urine

Cholesterol Crystals

Hippuric Acid Crystals

• acidic or neutral urine

Leucine Crystals

Tyrosine Crystals

Ammonium Biurate

Triple Phosphate Crystals

Amorphous Phosphate

• Alkaline urine

Bacteria

Yeast

• Pseuohyphae

Fat Droplets

Fiber

Mucus

Pollen Grain

Starch Granules

Amorphous urates/phosphates

Bacteria

Amorphous urates/phosphates

Amorphous urates/phosphates

• tiny dumbbell shaped crystals are calcium carbonate

• Bigger crystals are triple phosphate

Calcium carbonate

• small, diploid forms

Calcium phosphate

• colorless

• Thin prisms or rectangular plates

Calcium phosphate

• colorless

• Thin prisms or rectangular plates

• Alkaline urine

Triple Phosphate

• three to six sided prism

• Resemble coffin lid

Triple Phosphate

• three to six sided prisms

• Colorless

• Resemble coffin lid

Triple Phosphate

• picture on top is side view

Triple Phosphate

Calcium Oxalate

• dihydrate forms are the octahedral envelopes

• Monohydrate forms are the dumbbell or oval shapes

Calcium Oxalate

• dihydrate forms

Calcium oxalate

Calcium Oxalate

Calcium oxalate

• left is dihydrate

• Right is monohydrate

Calcium oxalate

• different forms seen

Calcium oxalate

• monohydrate forms

• Yellow stain from bile

Calcium oxalate

• monohydrate forms

Ammonium Biurate

• spheres with striations

• Irregular thorny apple

• Alkaline urine

Ammonium biurate

Ammonium biurate

Ammonium Biurate

Ammonium Biurate

Ammonium biurate

Hippuric Acid

Cystine Crystals

Cystine Crystals

Cystine

Cholesterol Crystals

Cholesterol Crystals

Cholesterol Crystals

Bilirubin Crystals

• yellow to brown in color

• Fine needles or granules

Bilirubin Crystals

• left are rod forms

• Right is spiculated sphere form

Bilirubin Crystals

Leucine Crystals

• Yellow to brown spheres

• Concentric circles and radial striations

Tyrosine Crystals

• Fine silky needles

Leucine Crystals

Tyrosine

• fine silky needles

Ampicillin

• from medication

• Long thin needles

Ampicillin

• Hair-like crystals with sturdy rods

Transitional Ep. Cell

Transitional Ep. Cell

Transitional Ep. Cell

Transitional Ep. Cell

Transitional Ep. Cell

Renal Tubular Epithelial

RTE

RTE

Spermatozoa

Hyaline Cast

Hyaline Cast

Granular Cast

Granular Cast

Granular Cast

Granular Cast

Granular Cast

Waxy Cast

Waxy Cast

Waxy Cast

Waxy Cast

Fatty Cast

Fatty Cast

• with highly refractile globules

RBC Cast

• the RBCs are within the cast

RBC Cast

WBC Cast