Ameloblastoma is a common odontogenic tumor originating from the dental lamina, reduced dental epithelium and rests of Malassez, and represents 10% of all odontogenic tumors of the jaw. Unicystic ameloblastoma is normally encountered in young patients, and often occurs in the mandible, and is particularly associated with an impacted tooth. We encountered an unicystic ameloblastoma arising from a dentigerous cyst after the treatment of a radiolucent lesion on the mandible.
Ameloblastoma ; Dentigerous Cyst ; Epithelium ; Humans ; Mandible ; Odontogenic Tumors

Common variable immunodeficiency (CVID) is a heterogenous syndrome characterized by hypogammaglobulinemia, various immunologic abnormalities and recurrent bacterial infections. Associated immunologic abnormalities consists of various kinds of autoimmune diseases and lymphoproliferative disorders. The lymphoproliferative disorder take several forms, such as malignant lymphoma, atypical lymphoid hyperplasia, and beniegn lymphoid hyperplasia. Lymphocytic interstitial pneumonia (LIP), which is a kind of atypical lymphoid hyperplasia, develop in young age groups and has controversy on its clonality. We experienced a 14-year-old female patient with LIP and CVID. We analysed the third complementarity-determining region (CDR3) of the immunoglobulin heavy chain gene for clonality analysis. Clonality analysis of lung biopsy specimen revealed that 6 of 13 colony and 4 of 13 colony have identical sequences respectively. We speculate that one of these 2 lymphoid cell clone may develop into malignant lymphoma in the future.
Adolescent ; Agammaglobulinemia ; Autoimmune Diseases ; Bacterial Infections ; Biopsy ; Clone Cells ; Common Variable Immunodeficiency* ; Complementarity Determining Regions ; Female ; Humans ; Hyperplasia ; Immunoglobulin Heavy Chains ; Lip ; Lung ; Lung Diseases, Interstitial* ; Lymphocytes ; Lymphoma ; Lymphoproliferative Disorders

Although a pathogenic mechanism of hemolytic anemia complicated with viral hepatitis is unknown, it is suggested that there are four mechanisms; 1) In the individual who has predisposition to hemolytic anemia, viral infection accelerates the red cell destruction & hemolysis become obvious. 2) Directly, virus itself injures to the red cell membrane. 3) The serious liver failure & hypersplenism induce the hemolysis. 4) Autoimmune hemolytic anemia because of immunological abnormality caused by viral infection. We experienced a case of autoimmune hemolytic anemia in 33-year-old male patient who was diagnosed as chronic lobular hepatitis B with biopsy. Diagnosis was estabilished by clinical features, blood cell count, routine urinalysis, direct & indirect Coombs test, liver function test, immunoglobulin quantitations, hepatitis B marker, bone marrow aspiration, and liver biopsy. This case was treated with corticosteroid and transfusion. During follow-up, he has been well tolerated.
Adult ; Anemia, Hemolytic ; Anemia, Hemolytic, Autoimmune* ; Biopsy ; Blood Cell Count ; Bone Marrow ; Cell Membrane ; Coombs Test ; Diagnosis ; Follow-Up Studies ; Hemolysis ; Hepatitis B* ; Hepatitis* ; Humans ; Hypersplenism ; Immunoglobulins ; Liver ; Liver Failure ; Liver Function Tests ; Male ; Urinalysis