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Pathology Lab 1

Picture Lesion Organ Characterised by

Cloudy Swelling Liver

- Swelling of the cells (the capillaries

between the cells are compressed)

- Granularity of cytoplasm (cytoplasm

contained fine red granules)

Cloudy Swelling Kidney

- Cell swelling, cytoplasm contains

coarse granules.

- Nucleus not affected in light

microscopy

- Pigmented cast, hyaline cast

Hydropic

DegenerationSkin

- Vacuoles in the cytoplasm and

appear pale in color

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Pathology Lab 2

Picture Lesion Organ Characterised by

Fatty Infiltration Liver

- The Hepatocytes contains large

fat granules which accumulate in

most of the cells

(Singed Ring Appearance)

Calcification kidney

- Entrance of large amounts of

ionic calcium especially in the

mitochondria

HemosiderosisCardiac

muscle

Breaking down of Hemoglobin and

become into ::

- Heme

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Pathology Lab 3

Picture Lesion Organ Characterised by

Coagulative

NecrosisSkin

- No cellular details (nucleus)

- Homogenous, Structureless and Pink

stained

Caseous Necrosis Testis

- All cellular details are lost

- Appear Structureless, homogenous

Liquefactive

NecrosisLiver

- Empty spaces and irregular edges

- Contains liquefied nicotinic tissues

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Pathology Lab 4

Picture Lesion Organ Characterised by

Infraction Kidney

Recent infarcts show coagulative

necrosis where the native renalarchitecture is discernible but the

tissue is necrotic.

Heal by scarring.

Infraction Spleen

The necrotic tissue showed preserved

general outline & loss of fine cellular

details (city of ghosts) appearinghomogenous pink containing blue dots

of fragmented nuclei .

Vein-Red

Thrombus

Blood Vessel

(vein)

A compact mass formed of blood

elements inside vessel during life

Intramuscular

HemorrhageMuscle

Dark red lines: present the blood in

the muscles.

Pulmonary

AbscessLung

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Pathology Lab 5

Picture Lesion Organ Characterised by

MyxomaUmbilical

Cord

* Benign tumor of myxomatous(Jelly-like) tissue

- Network of spindle cells and fibrous

connective tissue

Fibro Adenoma Breast

*Adenoma :: Benign of glandularepithelium

*Fibroma: Benign tumor of fibrous tissue

- Pressed acini of glands by fibrous

connective tissue

FibroleiomyomaSmooth

Muscles

* Benign tumor of smooth muscle

Red Fibrous :: Mucsles

White Fibrous :: Fibrous C.T

ChondromaCartilage

C.T

Benign tumor of hyaline cartilage

- Resembling to normal cell in lacunae

around the chondrocytes is matrix

-Transparent cartilaginous matrix and

some spots (cells)

http://en.wikipedia.org/wiki/Breasthttp://en.wikipedia.org/wiki/Breast

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Pathology Lab 6

Picture Lesion Organ Characterised by

Adenocarcinoma ThyroidAll histological criteria of

malignancy are present

Squamus cell

carcinomaSkin

Wavy appearance and maybe presence of center

creatine

(Bird nest)

Basal Cell Carcinoma(Rodent ulcer)

(Intermediate tumor)

Skin Sheet of malignant cells(no metastasis = local)

Melanoma Skin Melanin pigment is present