Po-Shing Lee

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We report a case of aggressive natural killer (NK) cell lymphoma/leukemia in a 70-year-old woman presenting with fever, hepatosplenomegaly, retroperitoneal lymphadenopathy, and elevated serum CA19-9. The patient died 4 days after diagnosis. Neoplastic NK cells were identified in the blood and retroperitoneal lymph node biopsy. Their phenotypes were(More)
Angioimmunoblastic T-cell lymphoma (AITL) is a distinct form of peripheral T-cell lymphoma (PTCL) frequently involving lymph nodes, spleen and bone marrow, and is associated with systemic symptoms. Its histologic features may be subtle at an early phase and difficult to diagnose. Despite the success of flow cytometry (FCM) in diagnosing B-cell neoplasm, FCM(More)
Biphenotypic acute leukemias account for 4% to 8% of all acute leukemias. Most of these leukemias are of myeloid-B-cell or myeloid-T-cell lineage. Acute myeloid-natural killer cell leukemia has been recognized recently. We report the first case, to our knowledge, of CD56(+) acute leukemia showing unequivocal myeloid and B-cell differentiation in a(More)
Solitary plasmacytomas include extramedullary plasmacytomas and those found in the bone. Seventy percent of patients are male and the median age is 50-55 years, younger than that for plasma cell myeloma. Most solitary plasmacytomas of bone eventually evolve to plasma cell myeloma within 2-10 years, while the extramedullary ones do so infrequently. We(More)
Expression of CD43 by B cells is often used as a diagnostic criterion in favor of a B-cell lymphoproliferative disorder, including small lymphocytic lymphoma/chronic lymphocytic leukemia, mantle cell lymphoma, Burkitt lymphoma, precursor B-lymphoblastic lymphoma, and a subset of marginal zone B-cell lymphomas. Benign B cells generally do not coexpress CD43.(More)
t(11;18)(q21;q21), the most frequent chromosomal aberration of mucosa-associated lymphoid tissue (MALT) lymphoma, occurs in 30% of gastric patients. Although the translocation is often associated with an 'aggressive' course, it has not been described in transformed MALT lymphomas. We screened 15 gastric MALT lymphomas [three with concurrent or subsequent(More)
PURPOSE We established a porcine model of ureteropelvic junction (UPJ) obstruction using a laparoscopic technique and assessed the outcome of standard suture-assisted and chemical glue-assisted laparoscopic pyeloplasty. MATERIALS AND METHODS Female domestic pigs (N = 20) underwent laparoscopic suture-ligature to create UPJ obstruction. One month later,(More)
Antithymocyte globulin (ATG) is a foreign protein used widely to treat aplastic anaemia (AA). Febrile reactions occurring during its administration may be impossible to distinguish clinically from fever due to sepsis, and are therefore routinely treated with intravenous antibiotics after collection of blood cultures. A statistically highly significant(More)