Case History

A 50-year old male presents with a unilocular radiolucent lesion in the left anterior mandible noted on dental x-ray.  A biopsy is performed and representative sections are shown. 

What is the diagnosis?

  1.       Mucoepidermoid carcinoma
  2.       Periapical/radicular cyst
  3.       Odontogenic keratocyst
  4.       Glandular odontogenic cyst

  Image 1 HE Image 163 

 Image 165 

Case History

The patient is a 56-year-old male with bowel perforation.

What is the diagnosis?

  1. Enteropathy-associated T-cell lymphoma (EATL)
  2. Monomorphic epitheliotrophic intestinal T-cell lymphoma (MEITL)

  Image 1 HE Image 163 

Case History

The patient is a 57-year-old male with a history of squamous cell carcinoma of the tonsil now presenting with a left neck mass.

What is the diagnosis?

  1. Squamous cell carcinoma
  2. Acinic cell carcinoma
  3. PTC
  4. Basal cell adenoma

  Image 162 Image 163 

Case History

The patient is a 76-year-old male with anemia (Hgb 8.6) and thrombocytopenia (15,000/microliter). Of note, serum copper levels are low. Photomicrographs of the bone marrow aspirate and biopsy are provided.

What is the most appropriate top diagnostic line?

  1. Dysplasia, see comment
  2. AML-MRC
  3. MDS-EB1
  4. MDS-NOS

  Image 162 Image 163
  Image 165 Image 166

Case History

Patient is a 66-year-old female with NASH cirrhosis s/p OLT. Specimen: native liver explant. Pictures: 

 A. Hematoxylin and eosin, 20x. B. Hematoxylin and eosin, 100x. C. PAS w/diastase, 40x

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Case History

The patient is a 50-year-old woman with a history of enlarged cervical lymph nodes.

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Case History

The patient is a 25-year-old woman with bilateral ovarian masses.

 Photo 1 edit Photo 2 edit Photo 3 edit

Case History

A 52-year-old female presented with a breast mass.

A lumpectomy specimen shows the lesion illustrated in the images (A-D). 

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2021-04-25T19:00:27Z 2021-04-25T18:51:52Z

Case History

The patient is a 33-year-old female with large suprasellar mass. 

What is a supplemental IHC that can be done to help predict possible post-op complications?

  1.       GFAP
  2.       IDH-1
  3.       BRAF V600E
  4. TTF-1
   HE 1   HE 2