#Gross

#Diagnosis 👉🏻 Bacterial pneumonia

#The_white_area
Pulmonary consolidation

#Microscopic

#Diagnosis 👉🏻 Bacterial pneumonia

#The_black_arrow
congested capillaries ( around the alveolar wall )

#The_green_arrows
Neutrophils

#The_blue_arrow
RBCs

#Note
The congested capillaries ( dilated & filed with RBCs )

#Microscopic

#Diagnosis 👉🏻 Viral pneumonia

#The_black_arrows
Interstitial lymphocytic infiltration

#Gross

#Diagnosis 👉🏻 lung abscess

#The_white_arrow
Abscess

#The_black_arrow
Consolidation

#The_red_arrow
Rough Scarface

#Causes
- complication of sever pneumonia
- from virulent organisms as
• S.aureus
• pneumococci
• klebsiella pneumoniae

#Microscopic

#Diagnosis 👉🏻 bacterial pneumonia early abscess

#The_black_arrow
Hemorrhage

#Note
The abscess formation with neutrophils
And the alveolar wall absent

#Gross

#Diagnosis 👉🏻 Tuberculose

#The_white_arrow
Ten yellow granuloma

#Microscopic

#Diagnosis 👉🏻 Tuberculosis

#The_black_arrows
Well defined granulomas

#The_blue_arrows
alveoli

#Microscopic

#Diagnosis 👉🏻 Tuberculose

#The_black_arrow
Langhans giant cell

#Microscopic

#Diagnosis 👉🏻 Tuberculose

#The_white_arrows
Mycobacteria Tuberculosis ( Acid fast bacilli )

#Note
The Mycobacteria stain by Z.N.S and appears as red rodsz

#Gross

#Diagnosis 👉🏻 Pulmonary embolism

#The_white_arrow
Thromboembolus

#Note
This embolism displays an irregular surface and pale tan areas admixed with dark red areas

#Microscopic

#Diagnosis 👉🏻 Pulmonary embolism

#The_black_arrows
Hemorrhage
الذي تقدر تمييزها بوجود الـ RBCs

#The_white_arrow
Thromboembolus

#Gross

#Diagnosis 👉🏻 Bronchiectasis

#The_black_arrows
Dilated bronchi

#The_white_star
Dilated bronchi with purulent mucus

#Microscopic

#Diagnosis 👉🏻 Bronchiectasis

#The_black_star
Necrotizing inflammation

#The_red_arrow
Alveoli

#The_green_star
Bronchi

🌸 Chronic Bronchitis

🌸 Bronchogenic carcinoma
- squamous cell carcinoma
- adenocarcinoma
- large cell carcinoma
- small cell carcinoma

#Gross

#Diagnosis 👉🏻 Squamous cell carcinoma

#The_black_star
Pale white to tan mass

#The_white_arrows
Anthracotic pigment ( emphysema in the tumor )

#Microscopic

#Diagnosis 👉🏻 well differentiation squamous cell carcinoma

#The_black_arrows
Kératinisation pearls

#The_green_arrows
Nest cell

#Note
When the kératinisation is large the squamous cell carcinoma is well differentiation
small 👉🏻 mild differentiation
absent 👉🏻 undifferentiated

#Microscopic

#Diagnosis 👉🏻 squamous cell carcinoma ( undifferentiated due to the kératinisation pearls absent )

#Microscopic

#Diagnosis 👉🏻 Adenocarcinoma

#The_green_area
Gland 👉🏻 #Description 👇🏻
- hyper-chromatic nucleus
- Thickening of gland wall
- irregular in wall of gland

#Microscopic

#Diagnosis 👉🏻 large cell carcinoma ( undifferentiated “poorly” )

#The_white_arrow
Intercellular Mucus
والذي يظهر باللون الأحمر عندما نصبغ الشريحه بصبغة PAS وهذا يلي يدلنا انه السرطان منشأة من adenocarcinoma مش هو من squamous cell carcinoma

#The_green_arrows
Large cell carcinoma

#Gross

#Diagnosis 👉🏻 large cell carcinoma ( undifferentiated “poorly” )

#The_green_arrows
Anthracotic pigment ( emphysema in the tumor )

#The_white_arrow
( large cell carcinoma )white to tan mass