Slides of the week
Squamous cell carcinoma Origin: Squamous epithelium. Sites: Skin, Oral cavity, Cervix. Gross: Irregular growth fungati...
Squamous cell carcinoma, Skin
Squamous cell carcinoma    Sole of the foot
SQUAMOUS CELL CARCINOMASCC
Squamous cell carcinoma
Adenocarcinoma   Origin: glandular tissue.   Sites: endocrine, exocrine glands, mucus  membranes, GIT, endometrium. Gro...
Adenocarcinoma,colon
Adenocarcinoma colon
Adenocarcinoma colon
Adenocarcinoma colon
Grading of malignant Tumours
Mucoid carcinoma Origin: from glandular epithelium. Sites: mostly in GIT. Grossly: appears as soft gelatinous mass. Mi...
Mucoid carcinoma, colon
Signet ring carcinoma,Stomach
Basal cell crcinoma               ((Rodent ulcer Def: locally malignant tumor arising from the  basal cell layer of epide...
Basal cell carcinoma ,Face
Basal cell carcinoma,Face
Basal cell carcinoma
Slides of malignant epithelialt t.
Slides of malignant epithelialt t.
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Slides of malignant epithelialt t.

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Slides of malignant epithelialt t.

  1. 1. Slides of the week
  2. 2. Squamous cell carcinoma Origin: Squamous epithelium. Sites: Skin, Oral cavity, Cervix. Gross: Irregular growth fungating, infiltrating or ulcerating growth. Microscopically: Masses and sheets of malignant squamous epithelial cells containing keratin nests and separated by C.T.stroma which infiltrated with inflammatory cells. Grading: depends on , % of keratin nests, mitoses and irregular nuclear pattern
  3. 3. Squamous cell carcinoma, Skin
  4. 4. Squamous cell carcinoma Sole of the foot
  5. 5. SQUAMOUS CELL CARCINOMASCC
  6. 6. Squamous cell carcinoma
  7. 7. Adenocarcinoma Origin: glandular tissue. Sites: endocrine, exocrine glands, mucus membranes, GIT, endometrium. Gross: in solid organsirregular infiltrative growth, in hollow organsfungating, infiltrating or ulcerating growth. Microscopically: irregular glands in size and shape,lined by malignant cells and separated by C.T. stroma. Grading: depends on tubule formation, number of mitoses and irregular nuclear pattern.
  8. 8. Adenocarcinoma,colon
  9. 9. Adenocarcinoma colon
  10. 10. Adenocarcinoma colon
  11. 11. Adenocarcinoma colon
  12. 12. Grading of malignant Tumours
  13. 13. Mucoid carcinoma Origin: from glandular epithelium. Sites: mostly in GIT. Grossly: appears as soft gelatinous mass. Microscopicaly:1-Mucoid carcinoma: mucoid differentiation in an adenocarcinoma  rupture of cells  release of large amount of extra-cellular mucin.2-Signet cell carcinoma: cells are distended with intracellular mucin--. Signet ring cells with minimal extrapcellular mucin.
  14. 14. Mucoid carcinoma, colon
  15. 15. Signet ring carcinoma,Stomach
  16. 16. Basal cell crcinoma ((Rodent ulcer Def: locally malignant tumor arising from the basal cell layer of epidermis. Sites: skin areas exposed to sun as in face. Gossly: starts as a papule rodent ulcer ( raised everted edge,rough and necrotic floor, indurated edge). Histologically: invasion of the dermis by variable sized masses formed of malignant basaloid cells that form palisade appearance at the periphery.
  17. 17. Basal cell carcinoma ,Face
  18. 18. Basal cell carcinoma,Face
  19. 19. Basal cell carcinoma

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