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Autopsy [Anatomical pathology ]
Muhammad Pathan, Sep 11, 2012
60 yo male with recent onset of abdominal pain, shortness of breath. CXR was concern for pneumonia. CT of abdomen and pelvis performed using IV contrast dye and swallow of gastrografin showed pericard [Read full case]
Are they parasitic cysts?
Lip lesion [Hematopathology Pediatric pathology]
You-Wen Qian, Feb 20, 2012
The patient is a nine-year old female who initially presented in December 2010 complaining of lip swelling for several months. The patient had no significant past medical history. She denied tick bit [Read full case]
1. Can atypical marginal zone hyperplasia re-grow or relapse? 2. Is PCR for B-cell clonal IGH gene rearrangement necessary to diagnosis pediatric marginal zone lymphoma? 3. Clinically, how to treat atypical marginal zone hyperplasia when complete excision is not possible?
Lymph node, inguinal [Hematopathology ]
Zahid Kaleem, Jan 12, 2012
This 65 year-old-man was seen for left superficial lymphadenopathy. No prior history of malignancy.

See DDx.
Prostate [Anatomical pathology ]
Muhammad Pathan, Aug 04, 2011
68 year old male with PSA 4.8
Is it benign or malignant
Blood morphology and flow immunophenotyping [Hematopathology Hematopathology]
Adrian Padurean, Jun 23, 2011
72 yo female with history of nephrectomy for renal cell carcinoma in 1983 on Sutent since 2007 with sudden development of extreme leukocytosis (last normal CBC in April 2011).
Is this a mature B cell neoplasm negative for kappa and lambda with aberant expression of CD13 or is it an acute leukemia negative for immature markers (TdT and CD34).
Lymph node, left inguinal [Hematopathology ]
Zahid Kaleem, Jun 09, 2011
This 84 year-old-woman with a history of treated breast carcinoma was seen for bulky left inguinal lymphadenopathy. CT scan of the pelvis showed 9.4 x 9.5 cm mass in the external iliac chain, encompas [Read full case]
Has anybody else seen this much tissue eosinophilia and histiocytic/granulomatous reaction in a diffuse large B-cell lymphoma? If so, then a series of cases may be studied and submitted for publication.
Lymph node, inguinal [Hematopathology ]
Zahid Kaleem, Jan 26, 2011
This 22 year-old-lady presented with FUO for past several months, weight loss of 50 pounds, and continuous sweating. Patient reported some "viral" infection three month prior to admission th [Read full case]
Is anybody worried about an evolving T-cell lymphoma in this setting? TCR gene rearrangement study is pending.
CADASIL case with intracerebral hemorrhage [Neuropathology ]
Brian Moore, Dec 03, 2010
I recently did a brain autopsy on a 70-year-old woman who died from an intraparenchymal brain hemorrhage after a seven-year history of progressive dementia. The gross photograph (provided by Chad J [Read full case]
Could this be a variant of CADASIL that predisposes to large cerebral hemorrhage?
Lymph node, inguinal [Anatomical pathology Hematopathology]
Zahid Kaleem, Oct 20, 2010

This is a 37-year-old man with no chronic medical problems who was admitted to the hospital with four days of fever.  He has a history of a splenectomy 14 years ago [Read full case]
Is this a classical Hodgkin lymphoma or T-cell/histiocyte-rich B-cell non-Hodgkin lymphoma with a nodular morphology?

Bone marrow biopsy [Hematopathology ]
Zahid Kaleem, Sep 22, 2010

The patient is a 41 year-old Caucasian man who presented with severe anemia. He has been very healthy and has been doing some significant physical training regimen for t [Read full case]
Has anyone seen acute severe anemia caused by maturation arrest of erythroid precursors after drugs/nutrional supplements use?

Prostate gland [Urologic pathology ]
Not a registered user, Sep 11, 2010
This 67 year old man underwent resection of the prostate on a diagnosis of prostate carcinoma on a needle biopsy. Two cores on the right side and three cores on the left side were positive for cancer. [Read full case]
Are these biologically two different malignancies or a high-grade component arising from usual adenocarcinoma? Does it really matter clinically at this point? Should I mention small cell carcinoma in my report?
Lymph node, axilla [Anatomical pathology Hematopathology]
Zahid Kaleem, Aug 23, 2010
[Read full case]
Has anyone seen a follicular dendritic cell sarcoma with TdT+ cells. What is the likely explanation for this phenomenon?