Case History

Placenta, 24-year-old P3013 at 28 5/7th weeks. Placental weight 641 g (210 – 331 g expected). Fetal hydrops and intrauterine demise.

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What is the diagnosis?

  1.        Cytomegalovirus infection
  2.        Herpes simplex virus infection
  3.        Listeria monocytogenes infection
  4.        Fetal transient abnormal myelopoiesis (TAM)
  5.        Parvovirus B-19 infection

Case History

71-year-old patient with small bowel obstruction after two surgical procedures: inguinal hernia repair (5 days prior) and prostatectomy (12 days prior).  Patient underwent small bowel resection during which a low anterior abdominal adhesion on the pubis was also noted. 

What is the diagnosis?

  1. Fibromatosis with ossification
  2. Heterotopic mesenteric ossification
  3. Ossifying fibrosarcoma 
  4. Extraskeletal osteosarcoma

   2020-06-24T22:02:12Z 2020-06-24T22:03:33Z

Case History

A 58 year old female with PMH for thyroid carcinoma S/P thyroidectomy in 2003. She had uterine fibroids been removed. Her follow up Abd CT in 2018 demonstrated cystic lesion in the caudate lobe measuring 1.8 x 1.9 cm. Recent CT demonstrated increasing in size to 3.8 x 2.9 cm.

What is the diagnosis?

  1.        MCN
  2.        Simple Solitary Cyst
  3.        Metastatic Carcinoma
  4. Cystadenoma
  5.       Cystadenocarcinoma

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Case History

The enlarged splenectomy specimen of a 44-year old man shows multiple variably sized blood-filled nodules throughout the cut surface (A-D). Immunophenotype: CD163+ (subset of cells), CD34+ (subset of cells), CD8 negative in red pulp sinuses. 

What is the diagnosis?

  1.        Hemangioma
  2.        Littoral Cell Angiosarcoma
  3.        Splenic Hamartomas
  4.        Littoral Cell Angioma

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Case History

This is an 18-year-old female with bilateral adnexal masses. 

What is the diagnosis?

  1.        Granulosa cell tumor
  2.        Sertoli Leydig cell tumor
  3.        Dydgerminoma
  4.        Lymphoma

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Case History

This is a 41 year old man with admitted from an outside hospital for encephalopathy.  Chest x-ray shows multiple nodules suggestive of disseminated tuberculosis.

What is the diagnosis?

  1.        Tuberculosis
  2.        Histoplasmosis
  3.        Coccidomycosis
  4.        Blastomycosis

  
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Case History

A 30-year-old man presented with a left elbow mass. A biopsy showed a small, blue, round cell tumor. The lesional cells were positive for myoD1, with very limited expression of desmin and myogenin.

What is the diagnosis?

  1.        Extraskeletal osteosarcoma
  2.        Ewing sarcoma
  3.        Embryonal rhabdomyosarcoma
  4.        Sclerosing rhabdomyosarcoma

  
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Case History

Images are from a 61-year-old male with 12 cm renal mass involving renal vein, sinus and perirenal fat.

Which statement is false regarding this case?

A. IHC for FH or 2-SC are recommended

B. This is a Type 2 Papillary RCC, no studies needed

C. TFEB-amplified RCC is in the ddx

D. MART1 expression by this tumor would not be a surprise

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Case History

A 59-year-old female with cystic liver lesion. Prior history of thyroid cancer 17 years ago. What is the diagnosis?

What is the diagnosis?

  1.        Metastatic follicular carcinoma
  2.        Hepatocellular carcinoma
  3.        Papillary mesothelioma 
  4.        Metastatic papillary thyroid carcinoma

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