No history required

Case 858.0

Case 858.1

Case 858.2

Case 858.3

Case 858.4

58.5

58.6

• Mucoepidermoid carcinoma, low grade

Case 6

39F: Right breast at 7:00

6.0

Case 66.1

Case 66.2

Case 66.3

Case 66.4

Case 66.5

Case 66.6

6.7

6.8

• Micropapillary IDC, Nottingham 3+3+?

Case 9

85M: Right vocal cord polyp

96.0

Case 996.1

Case 996.2

Case 996.3

Case 996.4

Case 996.5

Case 996.6

Case 996.7

96.8

96.9

72F: Postmenopausal bleeding

Case 1328.0

Case 1328.1

Case 1328.2

Case 1328.3

Case 1328.4

Case 1328.5

Case 1328.6

28.7

28.8

• Endometrial intraepithelial carcinoma

49F: Parotid mass

Case 555.0

Case 555.1

Case 555.2

Case 555.3

Case 555.4

Case 555.5

Case 555.6

55.7

55.8

• Follicular lymphoma, grade 1-2

Case 5

49F: Rush biopsy. Please mention calcium

35.0

Case 535.1

Case 535.2

Case 535.3

Case 535.4

35.5

35.6

• ALH; no calcification

Case 18

34F: Bladder tumor

48.0

Case 1848.1

Case 1848.2

Case 1848.3

Case 1848.4

Case 1848.5

Case 1848.6

48.7

48.8

• Endometriosis

51F: Obese and hypertensive. Presents with vaginal bleeding 4-5 months

Case 1429.0

Case 1429.1

Case 1429.2

Case 1429.3

Case 1429.4

Case 1429.5

Case 1429.6

Case 1429.7

Case 1429.8

Case 1429.9

Case 1429.10

Case 1429.11

29.12

29.13

• Adenocarcinoma with exogenous progesterone influence

65F: Excisional biopsy

Case 1262.0

Case 1262.1

Case 1262.2

Case 1262.3

Case 1262.4

62.5

62.6

• Peripheral intraductal papilloma

38M: Mass at base of skull

Case 1587.0

Case 1587.1

Case 1587.2

Case 1587.3

Case 1587.4

87.5

• The most likely diagnosis is

• What is the differential diagnosis

• What immunostain is most helpful in resolving this differential?

87.6

Case 15.

3 The most likely diagnosis is : Chordoma

2 What is the differential diagnosis: Chondrosarcoma

2 What immunostain is most helpful in resolving this differential? AE1/3/ Brachyury

Case 5

25F: Retroperitoneal mass resection.Section from a separate peritoneal nodule

92.0

Case 592.1

Case 592.2

Case 592.3

Case 592.4

92.5

92.6

25F

Unilateral ovarian mass 15 x 13 x 6 cm, 492 gms

Cystic and solid cut surface.

Case 11108.0

Case 11108.1

Case 11108.2

Case 11108.3

Case 11108.4

Case 11108.5

Case 11108.6

108.7

108.8

• Yolk sac tumor

Case 10

Breast biopsy

10.0

Case 1010.1

Case 1010.2

Case 1010.3

Case 1010.4

10.5

10.6

• DCIS colonizing lobules

Case 12

41M: Multiple masses in this organ

84.0

Case 1284.1

Case 1284.2

Case 1284.3

Case 1284.4

Case 1284.5

Case 1284.6

Case 1284.7

84.8

• a. Name the organ

• b. Pan-keratin and TTF-1 immunostains are negative. What is the diagnosis

• c. Name the stain

84.9

Case 12.

1 a. Name the organ: Lung

2 b. Pan-keratin and TTF-1 immunostains are negative. What is the diagnosis:Epithelioid hemangioendothelioma

1 c. Name the stain: CD 31

Case 8

40F: Lesser sac mass

95.0

Case 895.1

Case 895.2

Case 895.3

Case 895.4

Case 895.5

Case 895.6

95.7

95.8

Case 7

65F: Right breast cancer.

37.0

0.1 cm

Case 737.1

Case 737.2

Case 737.3

Case 737.4

Case 737.5

Case 737.6

37.7

37.8

• ADH verging on low grade DCIS

Case 2

53F: Ultrasound guided breast biopsy

32.0

Case 232.1

Case 232.2

Case 232.3

Case 232.4

Case 232.5

32.6

32.7

• Cyst; no ductal proliferation or Ca

Case 6

30F: Atypical endocervical cells suggestive of adenocarcinoma in situ

36.0

Case 636.1

Case 636.2

Case 636.3

Case 636.4

Case 636.5

Case 636.6

36.7

36.8

• Invasive carcinoma and AIS

Case 10

37M: Anemia

40.0

Case 1040.1

Case 1040.2

Case 1040.3

Case 1040.4

Case 1040.5

Case 1040.6

40.7

40.8

• Giardia

Case 3

73F: Mastectomy

3.0

Case 33.1

Case 33.2

Case 33.3

Case 33.4

Case 33.5

Case 33.6

3.7

3.8

• UDH and apocrine metaplasia

Case 1

62F: Pelvic mass

88.0

Case 188.1

Case 188.2

Case 188.3

Case 188.4

Case 188.5

Case 188.6

88.7

88.8

Case 3

49F: Calcifications in breast

33.0

Case 333.1

Case 333.2

Case 333.3

Case 333.4

33.5

33.6

• UDH; no calcifications

Case 10

27F: Neck dissection

97.0

Case 1097.1

Case 1097.2

Case 1097.3

Case 1097.4

Case 1097.5

97.6

97.7

Case 16

45F. Large mass. Menorrhagia

46.0

Case 1646.1

Case 1646.2

Case 1646.3

Case 1646.4

46.5

46.6

• Squamous metaplasia

Case 4

55M: Cirrhosis secondary to HCV infection. CT guided biopsy.

76.0

Case 476.1

Case 476.2

Case 476.3

Case 476.4

Case 476.5

Case 476.6

76.7

• a. Most comprehensive diagnosis on sections provided

• b. Name the stain

• c. Name the stain

• d. Name the stain

• e. Name the stain

76.8

• Case 4. • 2 a. Most comprehensive diagnosis on

sections provided: • Hepatocellular carcinoma• 1 b. Name the stain: HepPar• 1 c. Name the stain: pCEA/CD10• 1 d. Name the stain: CD34• 1 e. Name the stain: AFP/Glypican-3

Case 19

57F: Bilateral breast calcifications

49.0

0.1 cm

Case 1949.1

Case 1949.2

Case 1949.3

Case 1949.4

Case 1949.5

Case 1949.6

49.7

49.8

• ADH; Ca++

Case 14

39F: Ultrasound guided biopsy of left breast mass

44.0

Case 1444.1

Case 1444.2

Case 1444.3

Case 1444.4

Case 1444.5

Case 1444.6

44.7

44.8

• UDH

Case 10

Scrape preparation from a thyroid nodule.

25.0

Case 1025.1

Case 1025.2

25.3

25.4

• Papillary thyroid carcinoma

79F

Bilateral cystic ovarian masses

Each approximately 7.0 cm in size

Excrescences noted in lining of cysts

Case 5102.0

Case 5102.1

Case 5102.2

Case 5102.3

102.4

102.5

• Serous cystadenoma

Abdominal pain

Case 1464.0

Case 1464.1

Case 1464.2

Case 1464.3

64.4

64.5

• Strongyloides stercoralis in stomach

Case 4

56F: No history

34.0

Case 434.1

Case 434.2

Case 434.3

Case 434.4

Case 434.5

Case 434.6

34.7

34.8

• Cystic atrophy, endometrium

Case 4

73M: Submitted as sebaceous cyst

4.0

Case 44.1

Case 44.2

Case 44.3

Case 44.4

4.5

4.6

• Pilar, sebaceous or tricholemmal cyst

47F

Sections from unilateral ovarian cystic and solidmass measuring 11 x 9 x 6 cm.

Has a synchronous endometrioid adenocarcinoma of uterus

Case 7104.0

Case 7104.1

Case 7104.2

Case 7104.3

Case 7104.4

Case 7104.5

Case 7104.6

Case 7104.7

Case 7104.8

Case 7104.9

Case 7104.10

104.11

104.12

• Endometrioid adenocarcinoma and endometriosis

Recurrent pancreatitis

Case 656.0

Case 656.1

Case 656.2

Case 656.3

Case 656.4

56.5

56.6

• Mucinous (colloid carcinoma) developing in a background of IPMN

Parotid mass

Case 1969.0

Case 1969.1

Case 1969.2

Case 1969.3

Case 1969.4

Case 1969.5

69.6

69.7

• Traumuatic neuroma

32F: Single myometrial nodule measuring 1.5 cm.

Case 353.0

Case 353.1

Case 353.2

Case 353.3

Case 353.4

Case 353.5

Case 353.6

53.7

53.8

• Adenomatoid tumor