#Microscopic

#Diagnosis 👉🏻 Adenocarcinoma ( intestinal type adenocarcinoma )
Is well differentiated


#The_black_arrow
Intestinal metaplasia

#The_blue_arrows
Hemorragia

#Gross

#Diagnosis 👉🏻 Acute Appendicitis


#The_features
- Congested & swollen
- Dilated lumen contain pus or a fecalith or both
- Serosa coated with fibrin , fibrinopurulent exudate or pus

#Clinically
the patient often presents with right lower quadrant abdominal pain. An elevated WBC count is usually present

#The_causes
It is associated with obstruction (fecalith, gallstone, tumor or ball of worms)

#Microscopic

#Diagnosis 👉🏻 normal colon

#The_black_arrow
crypts that are lined by numerous goblet cell

#Gross

#Diagnosis 👉🏻 Ulcerative colitis

#The_features
pseudopolyps


#Clinically
- bloody diarrhea
- abdominal pain

#Microscopic

#Diagnosis 👉🏻 Ulcerative colitis

#The_black_arrow
crypt distortion

#Microscopic

#Diagnosis 👉🏻 Ulcerative colitis

#The_black_arrows
crypt abscess

#Microscopic

#Diagnosis 👉🏻 Ulcerative colitis


#The_black_arrow
ulceration ( distortion )
The ulceration often has a flask shape

🌸 Ulcerative colitis

#Gross

#Diagnosis 👉🏻 Crohn's disease ( skip lesions )


#The_black_arrows
Normal area

#The_features
- skip lesions
- Cobble stone mucosa
- Fissures
-Thickening in the wall
- Fat wrapping

#Clinically
- fatty stool
- abdominal pain

#The_causes
Idiopathic

#Microscopic
#Diagnosis 👉🏻 Crohn disease


#The_black_arrows
granulomatous inflammation

#The_red_arrows
Fissures

#The_blue_area
Thickening in the wall

🌸 Crohn's disease

#Microscopic

#Diagnosis 👉🏻 tubular adenoma ( adenomatous polyp)

#The_blue_arrow
Polyp (benign) on the mucosal surface

#Microscopic

#Diagnosis 👉🏻 tubular adenoma ( adenomatous polyp)

#The_yellow_arrows
Polyp (benign) on the mucosal surface

#Microscopic

#Diagnosis 👉🏻 tubulovillus adenomatous polyp

#The_black_arrows
Tubular

#The_blue_arrows
Villous

🌸 tubulovillus adenomatous polyp