1.Management of Pulmonary Metastasis.
Korean Journal of Medicine 2011;81(3):289-299
The lung is a common site for metastasis of malignant tumors from other organs. The metastatic cascade is a complex process that involves a series of events. Tumors can spread to the lung through hematogenous or lymphangitic routes. In the absence of extrathoracic metastasis, complete resection is associated with increased survival, regardless of histology. With appropriate patient selection, life expectancy is often improved with pulmonary metastasectomy. Stereotactic body radiation therapy (SBRT) and radiofrequency ablation (RFA) are 2 approaches that have been increasingly reported for pulmonary tumors. Although these new therapies have yet to match the long-term success rates of surgical therapy, the techniques demonstrate good results in treating high-risk surgical candidates with metastatic lesions to the lungs that would otherwise be considered with resection. This review will focus on the role of local therapy in oligometastasis that arise in the lung.
Life Expectancy
;
Lung
;
Metastasectomy
;
Neoplasm Metastasis
;
Patient Selection
2.A Case of Acute Lymphoblastic Leukemia Presenting with Protein-Losing Enteropathy.
Seon Young KIM ; Joong Goo KWON ; Myung Hwan KIM ; Jae Young OH ; Jin Hong PARK ; Kyung Chan PARK ; Jung Il RYOO ; Hun Mo RYOO
The Korean Journal of Gastroenterology 2012;60(5):320-324
Protein-losing enteropathy (PLE) is a syndrome characterized by excessive gastrointestinal protein loss, resulting in hypoproteinemia and edema. A variety of benign and malignant conditions can be associated with PLE and acute leukemia is a very rare cause of PLE. We report a case of PLE associated with acute lymphoblastic leukemia. A 27-year-old man was admitted due to watery diarrhea, epigastric pain and bilateral leg edema. Laboratory findings showed hypoproteinemia and polycythemia. The diagnosis of PLE and acute lymphoblastic leukemia were confirmed on the measurement of fecal alpha1-antitrypsin clearance and bone marrow examination. After systemic chemotherapy and autologous stem cell transplantation, his clinical symptoms and abnormal laboratory findings were gradually improved.
Adult
;
Bone Marrow Cells/pathology
;
Endoscopy, Gastrointestinal
;
Humans
;
Magnetic Resonance Imaging
;
Male
;
Precursor Cell Lymphoblastic Leukemia-Lymphoma/complications/*diagnosis/genetics
;
Protein-Losing Enteropathies/complications/*diagnosis
;
Thoracic Vertebrae/radiography
;
Tomography, X-Ray Computed
;
Translocation, Genetic
;
alpha 1-Antitrypsin/analysis
3.Successful Salvage Treatment for Isolated Brain Parenchymal Relapse due to Diffuse Large B Cell Lymphoma.
Seong Gyu KIM ; Sung Hwa BAE ; Hun Mo RYOO
Korean Journal of Medicine 2015;88(2):218-223
A central nervous system (CNS) relapse is a rare but mostly fatal complication in patients with diffuse large B cell lymphoma (DLBCL). CNS involvement can occur as an isolated event or can be combined with progression of systemic disease. There are limited data on treatment outcomes of patients with DLBCL and secondary CNS involvement. We report the clinical data, treatments, and outcomes of two DLBCL patients with isolated CNS relapses involving the brain parenchyma. Isolated CNS disease involving the brain parenchyma may be potentially treatable as the initial relapse site after complete remission from systemic treatment.
Brain*
;
Central Nervous System
;
Central Nervous System Diseases
;
Humans
;
Lymphoma, B-Cell*
;
Lymphoma, Large B-Cell, Diffuse
;
Recurrence*
4.Multiple Skeletal Muscle Metastases of Renal Cell Carcinoma after Nephrectomy: Case Report.
Seung Hyun CHO ; Young Hwan LEE ; Kyung Jae JUNG ; Young Chan PARK ; Ho Kyun KIM ; Hun Mo RYOO
Journal of the Korean Radiological Society 2004;51(3):337-340
Renal cell carcinoma is well known for its tendency to metastasize early to the lung, bone, and liver, but skeletal muscle is an extremely unusual site of metastasis. We report here on an unusual case with numerous skeletal muscle metastases in the posterior abdominal wall and buttock 2 years after radical nephrectomy for renal cell carcinoma.
Abdominal Wall
;
Buttocks
;
Carcinoma, Renal Cell*
;
Liver
;
Lung
;
Muscle, Skeletal*
;
Neoplasm Metastasis*
;
Nephrectomy*
5.A Case of Idiopathic Hypereosinophihc Syndrome Assoclated with Pulmonary Infiltration.
Hun Mo RYOO ; Young Soo KWEON ; Jin Hong CHUNG ; Kwan Ho LEE ; Hyun Woo LEE ; Dong Sug KIM ; Sam Beom LEE
Yeungnam University Journal of Medicine 1994;11(2):375-380
The idiopathic hypereosinophilic syndrome consists of peripheral blood eosinophilia of 1500/mm3 or more without a known cause, plus signs and symptoms of organ eosinophilia. The prognosis of HES without treatment is poor. However, about one third of the patients with this syndrome may respond to corticosteroid thrapy. Morever, the majority of the remainder may have a favorable response to hydroxyurea. We present here a case of hypereosinophilic syndrome without any identifiable causes, involving bone marrow, liver, lungs and cervical lymph node. We tried corticosteroid as a treatment but it showed no response. However the hydroxyurea showed good response.
Bone Marrow
;
Eosinophilia
;
Humans
;
Hydroxyurea
;
Hypereosinophilic Syndrome
;
Liver
;
Lung
;
Lymph Nodes
;
Prognosis
6.C-erbB-2 Protein Expression and Correlation in Sera and Tumors of Non-Small Cell Lung Cancer Patients.
Hun Mo RYOO ; Sang Yeop LEE ; Kyung Hee LEE ; Myung Soo HYUN ; Mi Jin KIM
Journal of the Korean Cancer Association 2000;32(6):1100-1108
PURPOSE: We have examined the expression of c-erbB-2 oncogene in sera and tissues of non-small cell lung cancer patients. MATERIALS AND METHODS: Serum levels of c-erbB-2 protein were measured by an enzyme im munoassay in 55 patients with non-small cell lung cancer. Sera from patients with surgical therapy were evaluated again after surgery. Immunohistochemical staining was performed in 47 of these tumors. RESULTS: Elevated levels (> or =45 U/mL, control mean 2SD) were observed in 15% of 55 non-small cell lung cancer patients, as compared with none of control subjects (p<0.05). The incidence of elevated level was higher in the adenocarcinoma than squamous cell carcinoma (22% vs 4%, p<0.01). The serum levels of c-erbB-2 protein decreased significantly after surgical tumor ablation (p<0.01). Tissue overexpression was obtained in 23/47 cases (49%). The incidence of c-erbB-2 overexpression was higher in the adenocarcinoma (73% vs 29%, p<0.005). No relationship was found between c-erbB-2 protein expression in serum and tumor tissue and clinicopathologic feature. Elevated serum c-erbB-2 levels predicted tissue overexpression with sensitivity 30% and specificity 96%. There was relationship between serum level and expression in tumor tissue of c-erbB-2 protein. CONCLUSION: Serum and tissue levels of c-erbB-2 correlate in patients with non-small cell carcinoma. Serum c-erbB-2 protein may be a useful indicator of tumor burden in patients with non-small cell lung cancer.
Adenocarcinoma
;
Carcinoma, Non-Small-Cell Lung*
;
Carcinoma, Squamous Cell
;
Humans
;
Incidence
;
Oncogenes
;
Receptor, erbB-2*
;
Sensitivity and Specificity
;
Tumor Burden
7.Ex vivo Expansion of Hematopoietic Cells and Amifostine Effects.
Hun Mo RYOO ; Sung Hwa BAE ; Myung Soo HYUN
Korean Journal of Hematology 2004;39(3):158-166
BACKGROUND: The possibility of cord blood transplantation in adults was limited by the amount of cord blood that could be collected. Cord blood transplantation after ex vivo expansion with cytokines have already been tried in adults. Amifostine is a phosphorylated aminothiol that affords broad cytoprotection from the myelosuppressive effects of antineoplastic agents. The purposes of this study were to investigate expansion of progenitor and myeloid cells after ex vivo culture of mononuclear cells (MNCs) in umbilical cord blood with growth factor and characterize hematopoietic activities of amifostine. METHODS: MNCs were cultured and ex vivo expanded into myeloid progenitors by using hematopoietic growth factors (IL-1beta, IL-3, IL-6, G-CSF, GM-CSF, SCF, EPO) which are known to stimulate differentiation and proliferation of myeloid progenitors. MNCs exposed to the appropriate amount of amifostine for 15 min were cultured in semisolid media and harvested at 24h intervals, and then apoptosis was assessed by propidium iodide staining. RESULTS: Myeloid colonies were successfully produced from MNCs. Maximal expansion was obtained with the combination of IL-3+SCF+G-CSF+GM-CSF. SCF was thought to be the most important growth factor for expansion of myeloid progenitor. Pretreatment with amifostine for 15 min stimulated formation of hematopoietic colonies at clinically relevant concentrations ranging from 1 to 100 micrometer. Increase in colony number compare to control were comparable after pretreatment with amifostine (10micrometer), and CFU-GEMM and BFU-E were highly responsive. Further enhancement of colony was not observed after prolonging the duration of pre- incubation exposure to 1, 8 and 24 hours. Amifostine enhanced IL-1 and IL-3 induced formation of CFU-GEMM and BFU-E. Incubation of MNCs with amifostine in suspension culture increased recovery of secondary colonies. Treatment with amifostine retarded cell loss and apoptosis, and promoted cell survival at 24, 48 and 72 hours in cytokine-deficient medium. CONCLUSION: Cord blood MNCs can be successfully expanded into myeloid progenitors by using hematopoietic growth factors. This investigation extend the previously recognized hematologic effects of amifostine, and indicate that in addition to its cytoprotective properties, amifostine is a stimulant of hematopoietic progenitor growth.
Adult
;
Amifostine*
;
Antineoplastic Agents
;
Apoptosis
;
Cell Survival
;
Cytokines
;
Cytoprotection
;
Erythroid Precursor Cells
;
Fetal Blood
;
Granulocyte Colony-Stimulating Factor
;
Granulocyte-Macrophage Colony-Stimulating Factor
;
Humans
;
Intercellular Signaling Peptides and Proteins
;
Interleukin-1
;
Interleukin-3
;
Interleukin-6
;
Myeloid Cells
;
Myeloid Progenitor Cells
;
Propidium
8.A Case of a Calcitonin-Secreting Pancreatic Endocrine Tumor in a Pateint with Multiple Endocrine Neoplasia Type 1.
Jun Hyeok CHOI ; Hong Ik KIM ; Sun Mi KANG ; Seong Gyu KIM ; Hoon Kyu OH ; Sung Hwa BAE ; Hun Mo RYOO
Korean Journal of Medicine 2012;83(6):817-822
Multiple endocrine neoplasia type 1 (MEN1) is an autosomal dominant hereditary disorder characterized by the combined occurrence of tumors of the parathyroid gland, exocrine pancreas, and anterior pituitary gland. Calcitonin-secreting pancreatic endocrine tumors are rare, and calcitonin-secreting pancreatic endocrine tumors with MEN1 have not been reported in Korea. A 46-year-old woman was admitted for a right breast cancer operation. Abnormal blood chemistry findings were hypercalcemia and elevated calcitonin. The patient was diagnosed with a calcitonin-secreting pancreatic endocrine tumor, left thyroid papillary carcinoma, right breast invasive ductal carcinoma, a thymic carcinoid tumor, left adrenal adenoma, uterine myoma, and adenomyosis by computed tomography scan, and with pituitary macroadenoma by brain magnetic resonance imaging. We present this case with a review of the literature, because it is the first reported calcitonin-secreting pancreatic endocrine tumor with MEN 1 in Korea.
Adenoma
;
Adenomyosis
;
Brain
;
Breast
;
Breast Neoplasms
;
Calcitonin
;
Carcinoid Tumor
;
Carcinoma, Ductal
;
Carcinoma, Papillary
;
Female
;
Humans
;
Hypercalcemia
;
Korea
;
Magnetic Resonance Imaging
;
Middle Aged
;
Multiple Endocrine Neoplasia
;
Multiple Endocrine Neoplasia Type 1
;
Myoma
;
Pancreas, Exocrine
;
Parathyroid Glands
;
Pituitary Gland, Anterior
;
Thyroid Gland
9.Myeloid Sarcoma of Peritoneum in Acute Myeloid Leukemia Patient with Inversion of Chromosome 16.
Ji Yoon KIM ; Byeong Kyu PARK ; Sung Hwa BAE ; Hun Mo RYOO ; Woo Jung SUNG ; A Jin LEE
Korean Journal of Medicine 2015;89(5):581-584
Myeloid sarcoma is an extramedullary myeloid neoplasm that usually involves the skin, soft tissues, and lymph nodes. Myeloid sarcoma is found in 2.5-9.1% of acute myeloid leukemia patients, usually those with t (8;21), while inv (16) is rarely associated with myeloid sarcoma. Consequently, little is known of the characteristics and incidence of inv (16) in myeloid sarcoma. Myeloid sarcoma in acute myeloid leukemia patients with inv (16) is most often found in the abdominal lesions; the intestinal tract is involved most commonly, in the form of a mass. Here, we report an unusual myeloid sarcoma presenting as peritoneal carcinomatosis in acute myeloid leukemia with inv (16) that appeared to be ascites.
Ascites
;
Carcinoma
;
Chromosomes, Human, Pair 16*
;
Humans
;
Incidence
;
Leukemia, Myeloid, Acute*
;
Lymph Nodes
;
Peritoneum*
;
Sarcoma, Myeloid*
;
Skin
10.The Efficacy of Docetaxel and Cisplatin Combination Chemotherapy for the Treatment of Advanced Gastric Cancer after Failing to 5-Fluorouracil Based Chemotherapy.
Sang Joon SHIN ; Min Kyoung KIM ; Kyung Hee LEE ; Myung Soo HYUN ; Sang Woon KIM ; Sun Kyo SONG ; Sung Hwa BAE ; Hun Mo RYOO
Cancer Research and Treatment 2004;36(6):367-371
PURPOSE: This study was conducted to confirm the efficacy and toxicity of docetaxel and cisplatin combination chemotherapy (DP) in patients with advanced gastric cancer. MATERIALS AND METHODS: Patients with measurable gastric adenocarcinoma received intravenous docetaxel 75 mg/m2 and cisplatin 75 mg/m2 with premedication on day 1, which was repeated every 3 weeks. All patients received DP as a second-line treatment after failing to 5-FU based chemotherapy. RESULTS: 34 patients were enrolled in this study between January 1998 and August 2003. A total of 112 cycles (median 3 cycles) were administered. Responses were evaluable in 30 patients. The objective response rate was 16.7% (95% CI: 3.5~30.3), with a stable disease in 56.7% (95% CI: 40.0~74.4) and a progressive disease in 26.7% (95% CI: 10.9~42.5) of patients, with a median follow up duration of 20 months for all the patients, The median duration of response, time to progression and overall survival were 2.1 months (95% CI: 0.4~3.9), 4.2 months (95% CI: 2.3~6.1) and 6.8 months (95% CI: 1.3~12.3), respectively, with a 1-year survival rate of 32%. The toxicity was evaluated in 30 patients, with neutropenia being most common. Renal impairment was seen in two patients with grade 3 creatinine elevation and liver enzyme elevation in four with grades 3 and 4. CONCLUSION: Although DP was an active combination regimen, with a tumor control rate of about 73% and with moderate tolerance, adjustment of the administration schedule, with further evaluation of other combination chemotherapies of docetaxel with new agents, other than cisplatin, seem warranted.
Adenocarcinoma
;
Appointments and Schedules
;
Cisplatin*
;
Creatinine
;
Drug Therapy*
;
Drug Therapy, Combination*
;
Fluorouracil*
;
Follow-Up Studies
;
Humans
;
Liver
;
Neutropenia
;
Premedication
;
Stomach Neoplasms*
;
Survival Rate