—  SPECIALTY CONFERENCE HANDOUT  —

Liver Pathology
Sunday, February 27, 2005 - 7:30 PM
Rivercenter Salon M,G




Moderator:

Mary Kay Washington
Vanderbilt University Medical Center
Nashville, TN


Clinical histories are printed below.
Click on the case numbers for text and references of each case.
Click on each slide thumbnail image for an enlarged view

Case 1

Submitted by:
Milton J. Finegold
Texas Children's Hospital
Houston, TX

Clinical Summary:

Three weeks prior to admission a 13 year old boy with cystic acne presented to his dermatologist to begin Accutane and had blood drawn per protocol. The acne was originally treated two months earlier with oral minocycline for one month. His liver functions at that time included total bilirubin 0.8 mg/dl, AST 22 U/L, ALT 17 U/L, and alkaline phosphatase 202 U/L. A complete blood count revealed an "increased white blood cell count". He proceeded to take two one-half doses of Accutane as prescribed. Five days prior to admission he had four days of nausea and vomiting. He was hospitalized, rehydrated, given vitamin K and his nausea and vomiting improved. He was transferred to Texas Children's Hospital due to the findings of lymphoblasts on a peripheral smear as well as abnormal liver chemistries. At the time of admission, he complained of increased fatigue, easy bruising, intermittent chills and fevers for over the past one and one-half weeks, and jaundice for the prior three days. There was a 10 pound weight loss in 2 weeks.

About two years ago, he had iron deficiency anemia, which was treated briefly with oral iron sulfate. His immunizations were up to date and he had completed his Hepatitis B series. His food allergies included strawberries but he did not have any known allergies to medications. Nutritional supplementation consisted of Brewer's yeast pills from GNC and Wal-Mart brand Vitamin E 400 IU daily.

At TCH he had hemoglobin 9.8 g/dl, hematocrit 28.8%, platelets 22 x 103/UL and white blood cells 3.41 x 103/UL. The differential showed 10% neutrophils, 8% bands, and 77% lymphocytes. Peripheral smear revealed "relative lymphocytosis with atypical blast like cells". Liver tests revealed elevated AST 3095 U/L, ALT 3872 U/L and GGT 124 U/L with alkaline phosphatase 192 U/L. Conjugated bilirubin was 9 mg/dl and uric acid was 6.6 mg/dl. Viral serology for Hepatitis A, B, and C were negative except for the hepatitis B surface antibody. Pro-time was 25.4 seconds with an INR of 2.3. His PTT was within normal limits at 32.6 seconds and D-dimer was negative.

Negative serological viral studies included cytomegalovirus IgM and IgG, Human Immunodeficiency Virus, Herpes virus IgM and IgG, Parvovirus B19 IgM and IgG. Epstein Barr virus IgG was elevated at 640. A rapid toxicology screen was negative except for benzodiazepines. Serology for antinuclear antibody and smooth muscle IgG were negative. Alpha-1 antitrypsin and factor V Leiden were normal. Blood copper level within normal limits. Ammonia was slightly elevated at 50 μmol/L.

The marrow biopsy contained 98% blasts, which marked as early B-lineage ALL (CD10, 19, 20, 22 and HLA-DR+). Karyotyping and FISH revealed t (5q; 9p) (12;22) and t (9p;16q) (22;24). There were no chromosome 4 or 10 abnormalities and probes specific for BCR/ABL and TEL/AML1 were negative. The next day Allopurinol and prednisone (40mg/m2 /day) were initiated in preparation for chemotherapy. Other medications included Ceptaz, Zofran and Zantac. The Ceptaz was initiated as a precaution due to low grade fevers, even though blood cultures remained negative. The next day he underwent a liver needle biopsy at the same time that a left subclavian catheter was placed.

Question:

The pathologic findings in this biopsy are most consistent with:
  1. Viral hepatitis.
  2. Autoimmune hepatitis.
  3. Lymphoblastic leukemia.
  4. Accutane-induced hepatic necrosis.
  5. Minocycline toxicity.

Case 1 - Figure 1 - Low power view showing portal and lobular infiltrate.

Case 1 - Figure 2 - Portal inflammatory infiltrate.

Case 1 - Figure 3 - Hepatocyte swelling; note apoptotic hepatocytes.



Case 1 - Figure 4 - Bone marrow biopsy.

Case 1 - Figure 5 - Bone marrow smear.




Case 2

Submitted by:
Dale C. Snover
Fairview Southdale Hospital
Minneapolis, MN

Clinical Summary:

55 year old female with mild transaminase elevations (2-3X nl), and mild elevation of alkaline phosphatase
Hepatitis studies negative
No history of diabetes or obesity
Numerous medications including nitrofurantoin, amitriptyline, ciprofloxicin
Liver biopsy performed (history as provided at the time of biopsy)




Case 2 - Figure 1 - Low power view of needle biopsy.

Case 2 - Figure 2 - Portal tracts show minimal inflammation.

Case 2 - Figure 3 - High power view of portal tract.



Case 2 - Figure 4 - Additional high power view of portal tract.

Case 2 - Figure 5 - Low power view of trichrome stain.



Case 2 - Figure 6 - Mild portal expansion on trichrome stain.

Case 2 - Figure 7 - High power view of portal tract on trichrome stain.




Case 3

Submitted by:
Romil Saxena
Indiana University School of Medicine
Indianapolis, IN

Clinical Summary:

A 21 year old Hispanic female underwent liver transplantation for massive hepatomegaly, intractable abdominal pain and multiple enhancing liver lesions consistent with hepatic adenomas. The patient has had a long-standing medical history since childhood that includes multiple episodes of hypoglycemia, epistaxis, bleeding gums, hepatomegaly and chronic abdominal pain. An abdominal CT scan in November 1999 showed diffuse increased echogenicity of the liver without any focal lesions. In March, 2004 she was admitted for increasing abdominal pain – mainly over the right hypochondrium and epigastrium, nausea, vomiting and episodes of hypogylcemia. Her mother had also noticed an increase in the abdominal girth since January 2004. A CT scan of her abdomen showed multiple enhancing lesions consistent with hepatic adenomas. Her liver function tests were as follows: bilirubin 1.0, alkaline phosphatase 77, AST 72 and ALT 63, ammonia 28 and INR 1.03. She continued to have abdominal pain and nausea despite medication and during a repeat admission, her lipase was over 1000 and triglycerides were 1105, suggestive of chemical pancreatitis. A CT scan of the abdomen did not show any changes in the liver lesions; alpha-feto protein was 1.6. The pancreatitis responded to discontinuation of oral intake, TPN and Lopid to lower her triglycerides. She was worked up for liver transplantation during which time a lytic lesion was found in her left shoulder and a mass was present in her mediastinum. She underwent surgical resection of the 2 lesions.

In September 2004, she underwent orthotopic liver transplantation. The liver weighed 3080 grams, and was soft and pale in appearance. Eight nodules measuring between 0.3 to 3.5 cm in diameter were present, 6 in the right and 2 in the left lobe. A representative section is submitted.



Case 3 - Figure 1 - The liver showed extensive macro and microvesicular steatosis.

Case 3 - Figure 2 - High power view illustrating macrovesicular steatosis.

Case 3 - Figure 3 - High power view illustrating microvesicular steatosis in which numerous small fat droplets have accumulated around a central nucleus.



Case 3 - Figure 4 - An adenoma consisting of crowded small basophilic hepatocytes arranged in one to 2 cell thick plates. Focal sinusoidal dilatation is present.

Case 3 - Figure 5 - Hepatocellular carcinoma consisting of sheets of cells with abundant eosinophilic cytoplasm and centrally placed nuclei with prominent eosinophilic nucleolus.




Case 4

Submitted by:
Sanjay Kakar
VA and University of California San Francisco Medical Center
San Francisco, CA

Clinical Summary:

This 40 year old woman presented with fatigue and abdominal pain. Physical exam revealed low grade ascites, mild jaundice, mildly enlarged liver and splenomegaly. There was a history of bloody diarrhea lasting for a few months two years back, but it was not clear if the diagnosis of inflammatory bowel disease was clearly established at that time. There were no gastrointestinal symptoms at this presentation. Alkaline phosphatase was five times normal and transaminaseswere barely out of the normal range.A liver biopsy was performed (since the needle biopsy has limited material, an open biopsy obtained at a later date is being provided. The needle biopsy and open biopsy show similar features).



Case 4 - Figure 1 - Sinusoidal dilatation and congestion predominantly affecting zone 3 of the liver.

Case 4 - Figure 2 - Pericentral fibrosis accompanied by sinusoidal dilatation and congestion.

Case 4 - Figure 3 - Many portal tracts are expanded and show bile ductular proliferation.



Case 4 - Figure 4 - Bile ductular proliferation is accompanied by a mild lymphoplasmacytic infiltrate.

Case 4 - Figure 5 - In addition to pericentral fibrosis, there is portal-based fibrosis with irregular septa.




Case 5

Submitted by:
Neil D. Theise
Beth Israel Medical Center
New York, NY

Clinical Summary:

The patient is a 56 year old man with hepatitis B cirrhosis who underwent liver transplantation. A 2.2 cm distinctive nodule was found upon sectioning the explanted liver. Sections are from the nodule.



Case 5 - Figure 1 - Low power view of nodule.

Case 5 - Figure 2 - Pseudoglandular structures within nodule

Case 5 - Figure 3 - Vascular structures within nodule.



Case 5 - Figure 4 - Thick-walled vascular structures within nodule.

Case 5 - Figure 5 - Portal structures.

Case 5 - Figure 6 - Cytokeratin 19 highlights biliary epithelium.