Hepatosplenic B-cell lymphoma associated with hemophagocytic syndrome: a case report

While T-cell non-Hodgkin's lymphoma (NHL) associated with hemophagocytic syndrome (HPS) has been frequently observed, B-cell NHL associated with HPS has been rarely reported. We report a case of hepatosplenic B-cell lymphoma associated with HPS in a 41-year-old woman who presented with fever of unknown origin. An abdominal CT scan revealed splenomegaly with focal splenic infarction. Splenectomy and a liver wedge biopsy showed sinusoidal-pattern infiltration of medium to large tumor cells with positive reaction to a B-lymphocyte marker. Findings on bone marrow examination showed proliferation of histiocytes with avid hemophagocytosis.     

AA-type amyloidosis associated with non-Hodgkin's lymphoma: a case report

Amyloid-associated protein (AA)-type systemic amyloidosis has been referred to as secondary amyloidosis because it is secondary to an associated inflammatory condition. It is extremely rare in patients with non-Hodgkin's lymphoma (NHL). Here we report an autopsy case of follicular small cleaved cell lymphoma with focal large B-cell lymphoma transformation in association with systemic AA-type amyloidosis. Formalin-fixed, paraffin-embedded tissues from autopsy and the patient's previous surgical specimen were studied by Congo red stain; electron microscopy; and immunostaining with antibodies against AA protein, P component, and kappa and lambda light chains. There was a marked AA amyloid deposition in the glomeruli of both kidneys, the retroperitoneal lymphoma mass, the blood vessels, the adrenal glands, and the adipose tissues. The patient's previous surgical specimens were negative for amyloid. We propose that this patient's systemic AA-type amyloidosis developed along the course of his NHL.     

CD56阳性弥漫性大B细胞淋巴瘤一例

患者男,35岁.2007年3月因颈部肿胀,CT提示胸腺占位考虑恶性淋巴瘤压迫上腔静脉在外院治疗.术前化疗2个周期后行胸腺部位肿瘤切除,术后病理诊断:纵隔肿瘤化疗后大片坏死,残留极少量变性肿瘤组织.手术后又进行瘤床放疗,治疗结束B超及CT检查均未见明显异常.同年9月患者出现腰背部疼痛,CT检查发现后腹膜多发淋巴结肿大,于2007年10月来本院治疗.根据病史考虑纵隔肿瘤术后、放化疗后,后腹膜淋巴结受累,行姑息性放化疗.4个疗程治疗结束后肿瘤明显缩小.2008年3月患者于后腹膜胰头上方出现结节灶(3.4 cm×3.0 cm×3.0 cm),经治疗后无明显改变;同期左下颈部发现直径3.0 cm大小肿块,至2008年9月左颈肿块达6 cm×5 cm×5 cm,行左颈部肿块切取活检.     

子宫体原发弥漫性大B细胞淋巴瘤一例

患者女,78岁.绝经30余年,近1个月无明显诱因出现下腹部坠胀感,于2010年7月收入院.无明显腹痛,无阴道流血.妇科检查:老年性外阴,阴道通畅,宫颈光滑,下腹部可触及一个肿块,大小约7 cm×8 cm,无压痛,因患者肥胖附件触诊不清.肝脾未见异常,全身淋巴结无肿大.下腹部CT:盆腔肿块.下腹部磁共振检查:子宫底部肿瘤,考虑肉瘤可能.胸部X线片未见异常.外周血、骨髓涂片均正常.患者入院后行广泛全子宫、双附件切除术及盆腔淋巴结清扫术.     

阑尾原发弥漫性大B细胞淋巴瘤一例

患者男,59岁.无明显诱因右下腹持续性疼痛半天,阵发性加剧,无放射痛,有恶心,无呕吐于2008年1月17日入院.体检:右下腹压痛、反跳痛明显,全身体表未触及肿大淋巴结,血常规检查:白细胞9.2×109/L,中性粒细胞84.5%,血红蛋白141 g/L,B超示:左肾多发性囊肿,阑尾肿胀明显.     

Composite T lymphoblastic leukemia/lymphoma and diffuse large B-cell lymphoma: case report

This report concerns a unique case of a composite lymphoma composed of T-lymphoblastic leukemia/lymphoma (T-LBL) and diffuse large B-cell lymphoma (DLBCL) in a 72-year-old woman with generalized lymphadenopathy, splenomegaly and ascites. Laboratory findings showed increased lactate dehydrogenase and soluble interleukin-2 receptor. The biopsy specimen showed replacement of the normal architecture of the lymph nodes by a tumor containing a dual cell population composed of large lymphocytes and medium-sized lymphocytes. Sheets of large lymphocytes often were punctuated by clusters of medium-sized lymphocytes. Flow cytometry and immunohistochemical analysis showed a composite lymphoma with both T-LBL and DLBCL. The T-LBL expressed CD1a, CD3, CD4, CD8, and terminal deoxynucleotidyl transferase. The DLBCL expressed CD19 and CD20, CD23, bcl-2, bcl-6, MUM1 and immunoglobulin κ light chain. Polymerase chain reaction detected a monoclonal pattern of T-cell receptor γ and immunoglobulin heavy chain rearrangements in the same specimen. She received eight cycles of R-CHOP (rituximab+cyclophosphamide, doxorubicin, vincristine, prednisone) therapy and achieved complete remission. She has shown no signs of recurrence 20 months after the diagnosis. We describe here a very unusual and, to the best of our knowledge, an as yet never reported case of a primary composite lymphoma of T-LBL and DLBCL.     

原发皮肤弥漫性大B细胞淋巴瘤(腿型)一例

患者男,60岁.因右小腿皮肤结节2个月于2006年3月21日入院.患者于2005年11月发现右小腿皮肤有斑片状色素沉着,2006年1月右小腿出现红色斑疹及结节,进行性增大,高出皮面.     

CD56 positive diffuse large B-cell lymphoma: a case report and literature review

CD56 positive B-cell lymphoma is very rare. We experienced a case of CD56 positive diffuse large B-cell lymphoma, occurred in a young child. A 5-year-old girl complained with snoring and open mouth breathing. No any abnormality in laboratory or physical examination was present, except enlarged both tonsils. Bilateral tonsillectomy was performed. Cut sections of right tonsil showed a 2 cm size, solid mass. On microscopically, large monomorphic lymphoid cells were diffusely proliferated and showed positivity for CD20 and CD56 and negative for Epstein-Barr virus (EBV) polymerase chain reaction (PCR). Monoclonality was observed on immunoglobulin heavy chain gene rearrangement. This is a unique case with incidentally found and occurred in a young child.     

老年鼻咽EB病毒阳性弥漫性大B细胞淋巴瘤一例

患者女,62岁.因发现"左颈肿物一个月"于2005年2月21日来我院就诊.鼻咽镜检查示:鼻咽明显狭窄,顶后壁及双侧壁见隆起型肿物.体检:双颈部多发淋巴结肿大,直径1.5 cm至3.0 cm不等.临床诊断:鼻咽癌待排除.     

原发皮肤弥漫性大B细胞淋巴瘤(腿型)一例

患者男,60岁.因右小腿皮肤结节2个月于2006年3月21日入院.患者于2005年11月发现右小腿皮肤有斑片状色素沉着,2006年1月右小腿出现红色斑疹及结节,进行性增大,高出皮面.     

原发皮肤弥漫性大B细胞淋巴瘤(腿型)一例

患者男,60岁.因右小腿皮肤结节2个月于2006年3月21日入院.患者于2005年11月发现右小腿皮肤有斑片状色素沉着,2006年1月右小腿出现红色斑疹及结节,进行性增大,高出皮面.     

Hemophagocytic syndrome associated with occult B-cell lymphoma: an autopsy case.

Hemophagocytic syndrome has been observed in various disorders, including malignant histiocytosis, peripheral T-cell lymphoma, and viral or bacterial infections. However, B-cell lymphoma has seldom been associated with hemophagocytic syndrome. We report a case of B-cell lymphoma that was associated with hemophagocytic syndrome. The diagnosis was not made until the time of autopsy.     

Spontaneous tumour lysis syndrome associated with non-Hodgkin's lymphoma--a case report

Spontaneous tumour lysis syndrome is characterized by hyperuricemia, hyperkalemia, hyperphosphatemia, metabolic acidosis and hypocalcemia, that occur even prior to the treatment of a neoplasm. This rare occurrence was encountered in a patient with non-Hodgkin's lymphoma (NHL), of follicular cell type. Conservative but intensive treatment led to complete resolution. Subsequent chemotherapy was well tolerated.     

Composite angioimmunoblastic T-cell lymphoma and diffuse large B-cell lymphoma: a case report and review of the literature

We report a rare case of composite angioimmunoblastic T-cell lymphoma (AILT) and diffuse large B-cell lymphoma occurring in a 48-year-old woman with generalized lymphadenopathy and hepatosplenomegaly. The patient initially sought care at a local hospital with a single enlarged left cervical lymph node. Histologic examination of the node was interpreted as an atypical immunoblastic proliferation. She developed generalized lymphadenopathy 10 months later and was referred to our institution for further evaluation. The recent biopsy of the cervical node showed typical features of AILT Flow cytometric immunophenotyping identified an aberrant CD4+ T-cell population that lacked surface CD3. Polymerase chain reaction analysis of the T-cell receptor gamma gene revealed a clonal rearrangement. In addition to the AILT, the lymph node showed partial involvement by a diffuse large B-cell lymphoma. The B lymphoma cells and admixed immnunoblasts and Reed-Sternberg-like B cells in the AILT were positive for Epstein-Barr virus (EBV) by in situ hybridization. Ourfindings raise the possibility that the EBV-associated large B-cell lymphoma is a secondary event in AILT via EBV infection or reactivation followed by clonal expansion of an immortalized EBV-infected B cell clone.     

Primary non-Hodgkin's lymphoma of breast: a case report

Primary breast lymphoma is a relatively uncommon neoplasm, majority being of B-cell origin. Mucosa associated lymphoid tissue (MALT) is one of the common types of breast lymphomas. Though cytologic diagnosis of breast lymphoma is an easy procedure and provides guidance for appropriate pre-operative management, it is often impossible to differentiate a low grade lymphoma from reactive proliferation. A similar difficulty was encountered in the present case, a 42 year old female with a breast lump. Fine needle aspiration cytology revealed a mixed lymphoid cell population. Lymphoepithelial lesions were identified histologically, and the majority of the cell population were confirmed as lymphoma cells of B-cell origin on immunohistochemistry. This case highlights the limitations of cytology and the importance of histological examination supported by immunohistochemistry for making a diagnosis of low grade primary breast lymphoma.     

Renal cell carcinoma with non-Hodgkin's lymphoma infiltration: a case report

The coexistence of renal cell carcinoma and non-Hodgkin's lymphoma is more common than expected in the general population; however, renal cell carcinoma with infiltration by non-Hodgkin's lymphoma has rarely been reported. Here we report on a 77-year-old patient who presented with small lymphocytic lymphoma in the jugulodigastric lymph node. He underwent nephrectomy for a renal mass 5 months later. On histopathological examination, the mass was diagnosed as a grade III renal cell carcinoma with infiltrated small lymphocytic lymphoma that was positive for B-cells (CD20). This case is discussed in terms of the coexistence of these tumors and tumor to tumor metastasis.     

Pyothorax-associated lymphoma: a case showing transition from T-cell-rich polymorphic lesion to diffuse large B-cell lymphoma

Pyothorax-associated lymphoma was found in a man who had a history of collapse therapy for pulmonary tuberculosis about 50 years ago. An autopsy specimen revealed histology of diffuse large B-cell lymphoma with latency III Epstein-Barr virus (EBV) infection. However, an open biopsy 2 years and 7 months before death showed a polymorphic appearance with abundant T-lymphocytes. Most of the EBV-infected atypical lymphocytes did not express either B- or T-cell markers as far as examined in the paraffin-embedded biopsy specimen, and rearrangements of immunoglobulin and T-cell receptors were not found. It seemed difficult to diagnose a B-cell lymphoma at the time of biopsy. However, retrospectively considered, if a phenotype of EBV-infected atypical lymphocytes is uncertain in cases showing polymorphic appearance, it might be better to consider the future evolution to overt B-cell lymphoma. Since pyothorax-associated lymphoma shows latency III infection of EBV, at least the immunohistochemistry of EBNA-2 and LMP-1 seems helpful for the diagnosis to prove which cells are infected by EBV.     

发生于非特殊型外周T细胞淋巴瘤后的EB病毒阳性弥漫性大B细胞淋巴瘤一例

患者女,70岁.因自觉右耳后肿块3个月、持续低热1个多月于2008年7月入院.起病以来,患者纳差、乏力,体重明显减轻.体检:全身浅表淋巴结肿大.CT示双侧颈部、耳后、腋下、纵隔、腹股沟可触及多发肿大的淋巴结.实验室检查:红细胞3.38×1012/L,血小板计数96×109/L.骨髓涂片:骨髓增生活跃,粒系增生活跃,嗜酸细胞比例增高.取右腋下淋巴结活检.