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Precursor NK cell lymphoblastic leukemia/lymphoma-report of a case with literature review.

ABSTRACT: Precursor Natural Killer (NK) cell lymphoblastic leukemia/lymphoma is a rare entity defined clearly by WHO (2008 WHO classification). However, the pathobiology of this subset of neoplasms is not clearly defined. There is wide disparity in the literature regarding the nomenclature and diagnostic criteria used to diagnose and characterize acute leukemias of presumed NK cell origin. In the present article we report a case of Precursor NK cell lymphoblastic leukemia/lymphoma and review the cases reported after 2008 WHO classification came into vogue, as acute leukemias of NK cell origin.

SUBMITTER: Jain S

PROVIDER: S-EPMC4192181 | biostudies-literature | 2014 Sep

REPOSITORIES: biostudies-literature

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Precursor NK cell lymphoblastic leukemia/lymphoma-report of a case with literature review.

Jain Sonal S Kumar Rajiv R Purohit Abhishek A Pati Hara Prasad HP

Indian journal of hematology & blood transfusion : an official journal of Indian Society of Hematology and Blood Transfusion 20140314 Suppl 1

Precursor Natural Killer (NK) cell lymphoblastic leukemia/lymphoma is a rare entity defined clearly by WHO (2008 WHO classification). However, the pathobiology of this subset of neoplasms is not clearly defined. There is wide disparity in the literature regarding the nomenclature and diagnostic criteria used to diagnose and characterize acute leukemias of presumed NK cell origin. In the present article we report a case of Precursor NK cell lymphoblastic leukemia/lymphoma and review the cases rep ...[more]

PMID: 25332598

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Project description:Background: Methylmalonic acidemia (MMA) can display many clinical manifestations, among which acute lymphoblastic leukemia (ALL) has not been reported, and congenital heart disease (CHD) is also rare. Case presentation: We report an MMA case with ALL and CHD in a 5.5-year-old girl. With developmental delay and local brain atrophy in MRI, she was diagnosed with cerebral palsy at 9 months old. Rehabilitation was performed since then. This time she was admitted to hospital because of weakness and widespread bleeding spots. ALL-L2 (pre-B-cell) was confirmed by bone marrow morphology and immunophenotyping. Echocardiography showed patent foramen ovale. The girl was treated with VDLD and CAML chemotherapy, during which she developed seizures, edema and renal insufficiency. Decrease of muscle strength was also found in physical examination. Screening for inherited metabolic disorders showed significantly elevated levels of methylmalonate-2, acetylcarnitine (C2), propionylcarnitine (C3), C3/C2 and homocysteine. Gene analysis revealed a compound heterozygous mutaion in MMACHC (NM_015,560): c.80A > G (p.Gln27Arg) and c.609G > A (p.Trp203*). CblC type MMA was diagnosed. Intramuscular injection of cyanocobalamin and intravenous L-carnitine treatment were applied. The edema vanished gradually, and chemotherapy of small dosage of vindesine was given intermittently when condition permitted. 2 months later, muscle strength of both lower limbs were significantly improved to nearly grade 5. The levels of methylmalonic acid and homocysteine were improved. Conclusion: Metabolic disease screening and gene analysis are very necessary for diseases with complex clinical symptoms. ALL can be a rare manifestation for MMA. Synopsis: We report a case of methylmalonic acidemia with acute lymphoblastic leukemia and congenital heart disease, which uncovered the importance of genetic testing and metabolic diseases screening in patients with multiple systemic organ involvement.

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Precursor NK cell lymphoblastic leukemia/lymphoma-report of a case with literature review.

Publications

Precursor NK cell lymphoblastic leukemia/lymphoma-report of a case with literature review.

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