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An unfortunate case

It’s been a while since I posted an interesting case, but here’s one that I saw in follow-up during my flow cytometry month.

The patient is a 44 yo M with a history of end-stage renal disease secondary to hypertensive nephropathy who was awaiting transplant > 2 years and undergoing peritoneal dialysis.  Fatigue and anemia and thrombocytopenia developed in late 2009 and because the anemia was attributed to his renal impairment, the thrombocytopenia was felt to be immune thrombocytopenic purpura (ITP) and he was treated with oral prednisone.  As you might expect, his fatigue persisted – as did the anemia and thrombocytopenia.  In addition, on review of systems in January he complained of drenching night sweats, fevers, a 30 pound weight loss and occasional nose bleeds.  Of significance he also had left upper quadrant cramping.  A physical exam at the time showed a palpable spleen and did NOT uncover any lymphadenopathy.

Labs showed the following:

WBC 6900 (normal diff), Hgb 8.6 L, MCV 101 H, Plt 37,000 L

BUN 66 H, Cr 6.35 H, Uric acid 15.9 H, LDH 1767 H (range 100-190), albumin 3.2 L, and slightly increased AST and ALT.  Calcium levels were normal.

A CT abdomen, bone marrow examination, and representative flow plots (with the population of interest painted red) showed the following.  Diagnosis?  Comments?

7 Comments

Posted by
Karl Robstad, MD

Date
August 5, 2010 @ 9pm

Posted by
Robert Bates, MD

Date
August 6, 2010 @ 7am

I thought that with Hepatosplenic T-Cell Lymphoma, the CD8 was negative. Is there a subset that show positivity (or should the plot be read differently, I thought the CD8 looked positive on this view).

Posted by
Dave

Date
August 6, 2010 @ 7am

Hepatosplenic gamma-delta T-cell. Intrasinusoidal distribution of CD3+ neoplastic cells is characateristic. The immunophenotype (CD3+, CD2+, Cd7+, CD8 is dim/partial, CD4-, TCR-gd+) is also consistent.

Posted by
Karl Robstad

Date
August 6, 2010 @ 9am

Presented this at our CP rounds this morning! Thanks so much!

Here is the ppt I wrote on my HTC Evo 4G, lol:

http://www.slideshare.net/robstak/pathtalk

Posted by
Hepatosplenic T-Cell Lymphoma « The 1x Objective

Date
August 6, 2010 @ 10am

[...] T-Cell Lymphoma 6 08 2010 Chris Cogbill has posted an interesting clinical/pathologic case presentation of Hepatosplenic T-Cell Lymphoma over at pathtalk.org worth checking [...]

Posted by
pathtalk.org – Follow-up to “An unfortunate case”

Date
August 11, 2010 @ 5pm

[...] An unfortunate case (5) [...]

Posted by
Christopher Cogbill

Date
August 11, 2010 @ 6pm

Just posted a follow-up to this case…if you’re interested!
http://pathtalk.org/archives/2167

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