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A 43-year-old male presented with a painless left testicular mass. The pathologic diagnosis of the radical orchiectomy specimen was peripheral T-cell lymphoma, unspecified (PTCL-u). According to the Ann Arbor staging system, his initial stage was III because of the right nasopharyngeal involvement. After first-line chemotherapy with four courses of the CHOP regimen and this was followed by involved-field radiotherapy, he achieved complete remission. Two months later, disease recurred to the left ciliary body of the left eye without evidence of involvement at other sites. Although the patient received intensive chemotherapy with autologous hematopoietic stem cell transplantation, he ultimately died of leptomeningeal seeding. Because both the central nervous system (CNS) and the orbit are sanctuary sites for chemotherapy, orbital infiltration of lymphoma should prompt physicians to evaluate involvement of the CNS and to consider performing prophylactic intrathecal chemotherapy as a treatment option.
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This study was undertaken to investigate in detail the xenograft mouse orthotopic lung cancer model induced by PC14PE6 adenocarcinoma cells.
Three cell doses (0.5×106; 1×106; 2×106) of PC14PE6 cells were injected into the lungs of male BALB/c nude mice by the intrathoracic injection method. The lung and other organs, including brain, liver, spleen, kidney, muscle, adrenal gland, and lymph node on knee, were removed and stained with H/E to detect the presence of tumor cells.
The reliable tumorigenicity time in the PC14PE6 adenocarcinoma cell-inoculated BALB/c nude mouse was 10 days after intrathoracic injection. The average life span of the three groups after inoculation was 14 days in the 2×106 cells inoculum group; 25 days in the 1×106 cells inoculum group; and 32 days in the 0.5×106 cells inoculum group. The PC14PE6 adenocarcinoma cells induced orthotopic lung cancer limited within the thorax.
This orthotopic lung cancer model is an efficient cancer model with easy inoculation methods, rapid and high tumorigenicity, and simple monitoring methods for metastasis.
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The 10-year overall survival rate following conventional treatments for patients with limited-stage Hodgkin's disease (HD) exceeds 90%. However, the clinical features and treatment outcome of HD in Korea have not been extensively characterized due to its low incidence. In this study, we attempted to analyze the treatment outcome of different modalities in limited stage HD patients.
Twenty one Hodgkin's disease patients, referred to the Samsung Medical Center between January 1997 and December 2003, were enrolled in this study. Limited stage Hodgkin's disease was subdivided into low and high risk groups. All evaluable patients received treatment.
There were 13 and 8 patients in the low and high risk groups, respectively. Eighteen patients (86%) obtained complete response (CR) and 3 patients (14%) achieved an undetermined complete response (CRu). Fourteen (67%), 4 (19%) and 3 (14%) cases received combination chemotherapy, radiotherapy alone and chemotherapy alone, respectively. Four cases relapsed and 2 obtained a second CR. The 5-year overall and disease-free survival rates were 90 and 72%, respectively, for all patients. The median follow-up duration was 31 months. There was no difference in disease free survival (DFS) between the low and high risk groups. Although 12 cases had neutropenia greater than grade III, none experienced neutropenic fever.
The treatment outcome of limited-stage HD was excellent, regardless to the initial treatment modality.
The association between a multiple myeloma and a secondary solid tumor is not well established. Some reports showed an increased risk of secondary solid neoplasms in multiple myeloma patients, but others have not. Three cases of the synchronous occurrence of multiple myelomas and solid tumors, namely, a small cell carcinoma of the lung, an adenocarcinoma of the colon and a squamous carcinoma of the pyriform sinus were experienced at our hospital. Therefore, herein is reported the clinical courses and treatment results. The stage of multiple myeloma was Durie-Salmon stage I in all of three cases; therefore, the solid tumors were treated as a primary target because the prognosis of early stage multiple myeloma is generally better than that of advanced solid tumor, while a smoldering or stage I myeloma do not need primary therapy until progression of the multiple myeloma. Two patients died of their solid tumors, but one patient is alive.
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Herein, a case of solitary, unilateral renal metastasis in a patient with curatively resected thoracic esophageal carcinoma, who achieved a pathological complete remission after neoadjuvant concurrent chemoradiotherapy, is reported. The kidney is the 4th or 5th most common visceral metastasis site of a primary esophageal carcinoma. More than 50% of renal metastases typically show bilateral involvement. Solitary, unilateral renal metastasis is extremely rare. Renal metastases from a primary esophageal carcinoma are usually latent and its diagnosis is very unusual in a live patient. The solitary renal metastasis in this case was not accompanied by metastases to other sites. The value of a nephrectomy in solitary renal metastasis of esophageal cancer is not known due to the rarity of such cases. A nephrectomy could be justified in limited situations, such as with uncertainty of histological diagnosis, severe life-threatening hematuria, which cannot be controlled by embolization, or solitary renal metastasis with a long disease-free interval.
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