Date of Presentation:11/18/2016

Attending pathologist: Wei Chen, MD, PhD

Presented by: Mohammed Alsomali, MD; Andrew Martowski, MD

Prepared by: Youssef Youssef, MD; Rulong Shen, MD

Organ:Liver

HISTORY:

74 years old female with a liver mass.

Her past medical history is significant for transitional cell carcinoma of the ureter and a small 1-2 cm mass of her right upper arm.

Microscopic image possibly detecting cancerous areas in human tissue
Microscopic image possibly detecting cancerous areas in human tissue
Microscopic image possibly detecting cancerous areas in human tissue

What is the most likely diagnosis?

  1. GIST
  2. Malignant PEComa
  3. Melanoma
  4. Angiomyolipoma
Malignant PEComa (perivascular epithelioid cell tumor)

CASE SUMMARY