RESUMO
BACKGROUND: Using only serologic determinations, we have previously found that thrombocytopenia presents in less than one half of patients with non-alcoholic fatty liver disease (NAFLD). MATERIAL AND METHODS: Employing a more accurate method to define the presence of NAFLD, serologic determinations (Fibromax®) coupled with liver transient elastography (TE/Fibroscan®), we have prospectively studied a group of 211 individuals with a suspicion of a liver disease. RESULTS: NAFLD was identified in 81 individuals. In 48 persons another causes of liver damage were identified and discarded from further analysis. A subset of 33 patients with NAFLD without liver fibrosis or cirrhosis was analyzed. In eight of them (24%), thrombocytopenia (less than 150 × 109/l platelets) was identified. The presence of thrombocytopenia in this subset of persons was associated with overweight, was usually mild, above 50 × 109/l, was not associated to mucocutaneous bleeding and did not require treatment. CONCLUSIONS: NAFLD should be considered as a cause of mild thrombocytopenia. Our initial observation has been confirmed and defined more precisely. Additional studies are needed to further define more features of the thrombocytopenia of NAFLD, as well as its mechanisms.
Assuntos
Técnicas de Imagem por Elasticidade , Fígado/diagnóstico por imagem , Hepatopatia Gordurosa não Alcoólica , Trombocitopenia , Adulto , Idoso , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Hepatopatia Gordurosa não Alcoólica/sangue , Hepatopatia Gordurosa não Alcoólica/complicações , Hepatopatia Gordurosa não Alcoólica/diagnóstico por imagem , Trombocitopenia/sangue , Trombocitopenia/complicações , Trombocitopenia/diagnóstico por imagemRESUMO
CASE DESCRIPTION: An 82-years old Hispanic woman with a past medical history significant for pulmonary thromboembolism on oral anticoagulation, rheumatoid arthritis, and hypertension developed a new onset thrombocytopenia. CLINICAL FINDINGS: Small clonal B-cells populations (SCBP) also known as monoclonal B-cell lymphocytosis was found as part of the workup for an idiopathic thrombocytopenia and lead ultimately to the diagnosis of parotid primary follicular lymphoma coexisting with Warthin tumor involving the bone marrow in a small extent and oncocytic papilloma located in the maxillary sinus. TREATMENT AND OUTCOME: Patient was treated with Rituximab monotherapy with improvement on her platelet count. CLINICAL RELEVANCE: Although it is unclear the role of this clonal cells, they may work as a possible diagnostic tool for occult lymphomas. Further prospective studies are needed to confirm this possible association.
DESCRIPCIÓN DE CASO: Mujer hispana de 82 años con una historia médica significativa de tromboembolismo pulmonar en anticoagulación, artritis reumatoide e hipertensión, la cual desarrolló recientemente una trombocitopenia. HALLAZGOS CLÍNICOS: Una pequeña población de células B monoclonales también conocida como linfocitosis monoclonal de células B fue encontrado dentro del estudio de una trombocitopenia idiopática que conllevó al diagnóstico de un linfoma folicular primario de parótida coexistiendo con un tumor de Warthin y un papiloma oncocítico localizado en el seno maxilar. TRATAMIENTO Y RESULTADO: La paciente fue tratada con monoterapia de Rituximab con una mejoría en su conteo de plaquetas. RELEVANCIA CLÍNICA: Aunque el rol de las pequeñas poblaciones B monoclonales no está completamente dilucidado, podrían tener una aplicación como herramienta diagnóstica. Futuros estudios prospectivos son necesarios para confirmar esta posible asociación.
Assuntos
Linfócitos B/patologia , Medula Óssea/patologia , Linfocitose/patologia , Linfoma/patologia , Neoplasias Primárias Desconhecidas/patologia , Neoplasias Parotídeas/patologia , Trombocitopenia/patologia , Idoso de 80 Anos ou mais , Medula Óssea/diagnóstico por imagem , Células Clonais/patologia , Feminino , Humanos , Linfocitose/diagnóstico por imagem , Linfoma/diagnóstico por imagem , Neoplasias Primárias Desconhecidas/diagnóstico por imagem , Neoplasias Parotídeas/diagnóstico por imagem , Tomografia por Emissão de Pósitrons combinada à Tomografia Computadorizada , Trombocitopenia/diagnóstico por imagemRESUMO
Case Description: An 82-years old Hispanic woman with a past medical history significant for pulmonary thromboembolism on oral anticoagulation, rheumatoid arthritis, and hypertension developed a new onset thrombocytopenia. Clinical Findings: Small clonal B-cells populations (SCBP) also known as monoclonal B-cell lymphocytosis was found as part of the workup for an idiopathic thrombocytopenia and lead ultimately to the diagnosis of parotid primary follicular lymphoma coexisting with Warthin tumor involving the bone marrow in a small extent and oncocytic papilloma located in the maxillary sinus. Treatment and Outcome: Patient was treated with Rituximab monotherapy with improvement on her platelet count. Clinical relevance: Although it is unclear the role of this clonal cells, they may work as a possible diagnostic tool for occult lymphomas. Further prospective studies are needed to confirm this possible association.
Descripción de caso: Mujer hispana de 82 años con una historia médica significativa de tromboembolismo pulmonar en anticoagulación, artritis reumatoide e hipertensión, la cual desarrolló recientemente una trombocitopenia. Hallazgos clínicos: Una pequeña población de células B monoclonales también conocida como linfocitosis monoclonal de células B fue encontrado dentro del estudio de una trombocitopenia idiopática que conllevó al diagnóstico de un linfoma folicular primario de parótida coexistiendo con un tumor de Warthin y un papiloma oncocítico localizado en el seno maxilar. Tratamiento y resultado: La paciente fue tratada con monoterapia de Rituximab con una mejoría en su conteo de plaquetas. Relevancia clínica: Aunque el rol de las pequeñas poblaciones B monoclonales no está completamente dilucidado, podrían tener una aplicación como herramienta diagnóstica. Futuros estudios prospectivos son necesarios para confirmar esta posible asociación.
Assuntos
Idoso de 80 Anos ou mais , Feminino , Humanos , Trombocitopenia/patologia , Medula Óssea/patologia , Neoplasias Primárias Desconhecidas/patologia , Neoplasias Parotídeas/patologia , Linfócitos B/patologia , Linfocitose/patologia , Linfoma/patologia , Trombocitopenia/diagnóstico por imagem , Medula Óssea/diagnóstico por imagem , Neoplasias Primárias Desconhecidas/diagnóstico por imagem , Neoplasias Parotídeas/diagnóstico por imagem , Células Clonais/patologia , Tomografia por Emissão de Pósitrons combinada à Tomografia Computadorizada , Linfocitose/diagnóstico por imagem , Linfoma/diagnóstico por imagemRESUMO
INTRODUCTION: Maternal-fetal alloimmune thrombocytopenia complicates about 0.1% of all pregnancies and is associated with major fetal and neonatal morbidity and mortality, especially spontaneous central nervous system bleeding leading to death and neurological handicaps. Successful prevention and treatment depend on the identification of at-risk possible carriers of anti-platelet antibodies. CASE REPORT: We report a case of a mother with a previous child that developed neonatal hemorrhage; HPA-5b anti-platelet antibodies were detected post-natally. During the next pregnancy, fetal genotyping confirmed the presence of HPA-5b antigen; she was treated with weekly intravenous human immunoglobulin and oral prednisone. Pregnancy evolved without remarkable features and a full-term baby was delivered, with normal platelet counts. CONCLUSION: Fetal alloimmune thrombocytopenia is a potentially lethal condition, but early detection and prevention lead to successful outcome in most cases.
Assuntos
Antígenos de Plaquetas Humanas/imunologia , Isoantígenos/imunologia , Trombocitopenia/imunologia , Antígenos de Plaquetas Humanas/genética , Feminino , Humanos , Imunoglobulinas Intravenosas/administração & dosagem , Recém-Nascido , Masculino , Prednisona/administração & dosagem , Gravidez , Trombocitopenia/diagnóstico por imagem , Trombocitopenia/genética , Trombocitopenia/prevenção & controle , Ultrassonografia Pré-NatalRESUMO
OBJECTIVE: To describe the CT scan findings of 21 thrombocytopenic patients with central nervous system (CNS) hemorrhage. METHOD: Retrospective study of the computed tomography (CT) of 21 platelet-depleted patients with CNS hemorrhage. One patient presented two episodes of hemorrhagic episode with different intervals. The clinical data were obtained by the review of the medical records. Two radiologists analyzed the films and reached the decisions by consensus. The following findings were studied: type of bleeding, number of lesions, topography, laterality, size and associated findings. RESULTS: Intraparenchymal hemorrhage (IPH) was the most common findings, found in 20 cases, being six of them associated with subarachnoid and intraventricular hemorrhages. The size of the lesions varied between 1.8 and 10.5 cm. The parietal lobes were more commonly affected (n=11, 50%), followed by the temporal (n=7, 31.8%), frontal (n=7, 31.8%) and occipital (n=2, 9.09%) lobes. In 15 cases (68.2%) there was a single area of hemorrhage and in the remaining cases there were multiple hemorrhages. Associated findings were found in 20 cases. The most prevalent were edema (n=17, 77.3%), hydrocephalus (10, 45.4%) and midline shift (n=9, 41%). CONCLUSION: The most frequent CT scan findings in thrombocytopenic patients with CNS hemorrhage are single IPH, located mostly in the parietal, temporal and frontal lobes, with varied sizes and associated with edema, hydrocephalus and midline shift.