Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0010200 (cough)
 23,843 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

The present report describes a case of lymphoepithelioma-like carcinoma (LELC) of the lung and presents immunohistochemical and in situ hybridization (ISH) studies of the tumor. A 39-year-old Chinese woman, who was born in China and emigrated to Japan at the age of 29, suffered from a cough for 2 years and received a middle and lower lobectomy with mediastinal lymph node dissection after induction chemotherapy. The tumor consisted of undifferentiated carcinoma and areas of more differentiated squamous cell carcinoma with an intense lymphoid infiltrate. Serological studies and ISH studies showed EBV infection of the tumor. The immunophenotype of tumor-infiltrating T-lymphocytes (TITL) of the present case was examined immunohistochemically and was compared with that of an LELC case reported previously. Most CD3-positive T cells of TITL in both cases were labeled with both CD8 and TIA-1 but not with granzyme-B, indicating the TITL to be cytotoxic T lymphocytes (CTL) in the resting state. The lack of CTL activation at the tumor site might have been due to local inhibition of EBV-specific CTL responses such as T-cell anergy. Because the EBV-specific CTL derived from peripheral blood lymphocytes, in contrast to the TITL, may not be influenced by either tumor-produced suppressor factors or negative regulatory T cells, they may inhibit the hematogenous metastasis of EBV-positive LELC, possibly resulting in a better prognosis. Because LELC of the lung responded to preoperative chemotherapy in the present study, it may be useful for reducing the local tumor burden and facilitate subsequent local therapy, although the mechanism of chemosensitivity of LELC remains unknown.
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PMID:Case report of lymphoepithelioma-like carcinoma of the lung--lymphoid population consisting of cytotoxic T cells in resting state. 1060 98

The estimated prevalence of extranodal non-Hodgkin lymphoma ranges from 10 to 35% of all cases; a finding in the larynx is extremely rare. We describe the case of a 77-year-old man who presented for evaluation of a 1-month history of minor swallowing difficulty, cough, and a foreign-body sensation in the throat. Fiberoptic endoscopy detected a tumor mass on the left aryepiglottic fold. Vocal fold mobility was normal. A biopsy specimen was obtained, and microscopic analysis revealed that the stratified squamous epithelium was partially eroded by abundant infiltrate that had occupied the entire submucosa. The submucosal infiltration consisted of lymphatic cells, including small, medium-sized, and large cells with an anaplastic appearance. On immunohistochemical analysis, the lymphoma cell population stained positive for CD3 and CD2, focally positive for CD56, and negative for CD4, CD5, and CD7. In addition, tumor cells expressed TIA-1, perforin, and granzyme B. A complete radiologic, pulmonologic, and hematologic workup found no other tumor. The patient underwent two cycles of chemotherapy followed by radiotherapy, and he experienced complete tumor regression. At the 1-year follow-up, findings on fiberoptic endoscopy of the larynx were normal, and positron-emission tomography found no evidence of a recurrence. The prognosis for this type of tumor is good when the diagnosis is made in the early phase of the disease. Long-term follow-up is advisable for the timely detection of possible local or distant recurrences, which are common.
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PMID:Primary laryngeal NK/T-cell non-Hodgkin lymphoma: a case report. 2282 38

Sarcomatoid variant of anaplastic large cell lymphoma (ALCL) is one of the rarest histologic variants of ALCL that consists of large, bizarre, often spindle-shaped, neoplastic cells resembling a soft tissue sarcoma. We report here such a case of ALCL with both pulmonary and multiple nodal involvement in a 47-year-old woman who initially presented with fever, cough, sputum, itching skin, and weight loss. The initial transbronchial lung biopsy showed discohesive pleomorphic malignant cells in a strong inflammatory milieu reminiscent of inflammatory malignant fibrous histiocytoma (MFH). Subsequent cervical lymph node biopsy revealed a spindle cell sarcoma predominantly composed of plump spindle and oval neoplastic cells in interweaving fascicles, with sparse inflammatory infiltrates, resembling pleomorphic-storiform type of MFH. However, these tumor cells in the lung and node lesions revealed essentially similar immunohistochemical features that were positive for CD30, EMA, TIA-1, granzyme B, and fascin, but negative for anaplastic lymphoma kinase (ALK), and T- or B-lineage-specific marker. The spindled cells stains diffuse strong positive for smooth muscle actin (SMA), along with vimentin. Further studies showed that the tumor produced large quantities of the proinflammatory cytokines interleukin-2 (IL-2), IL-6, and IL-8, which we believe may contribute to the pathogenesis of sarcomatoid transformation of this tumor, and was associated with the patient's inflammatory symptoms. To the best of our knowledge, this is the first reported case of sarcomatoid variant of ALK-negative ALCL with null cell phenotype and in situ production of proinflammatory cytokines presenting as multiple nodes and pulmonary involvement.
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PMID:Sarcomatoid variant of ALK- anaplastic large cell lymphoma involving multiple lymph nodes and both lungs with production of proinflammatory cytokines: report of a case and review of literature. 2519 51