Résumé
Cholangiocarcinoma with paraneoplastic dermatomyositis (DM) is extremely rare, and the whole body positron emission tomography-computed tomography (PET-CT) finding of paraneoplastic DM is rarely reported. We report a 66-year-old woman with metastatic cholangiocarcinoma, initially presented with bilateral proximal muscle uptake on PET-CT without clinical muscle symptoms. The initial interpretation of the high muscle uptake was metastasis to the muscles. However, while awaiting for chemotherapy, muscle weakness evolved and rapidly progressed. The level of creatine phosphokinase was significantly elevated. Electromyography revealed moderate myopathy, and a muscle biopsy showed degenerating myofibers with variable sizes. The diagnosis of paraneoplastic dermatomyositis was made. This case highlights that, although rare, paraneoplastic dermatomyositis can be present with cholangiocarcinoma. Also, muscle inflammation can precede the clinical muscle symptoms, and paraneoplastic DM should be considered as a possible differential diagnosis in the assessment of cancer patients who present with abnormal muscle tracer uptake in PET-CT scans.
Sujets)
Sujet âgé , Femelle , Humains , Biopsie , Cholangiocarcinome , Creatine kinase , Dermatomyosite , Diagnostic , Diagnostic différentiel , Traitement médicamenteux , Électromyographie , Électrons , Inflammation , Faiblesse musculaire , Muscles , Maladies musculaires , Métastase tumorale , Tomographie par émission de positonsRésumé
Cholangiocarcinoma with paraneoplastic dermatomyositis (DM) is extremely rare, and the whole body positron emission tomography-computed tomography (PET-CT) finding of paraneoplastic DM is rarely reported. We report a 66-year-old woman with metastatic cholangiocarcinoma, initially presented with bilateral proximal muscle uptake on PET-CT without clinical muscle symptoms. The initial interpretation of the high muscle uptake was metastasis to the muscles. However, while awaiting for chemotherapy, muscle weakness evolved and rapidly progressed. The level of creatine phosphokinase was significantly elevated. Electromyography revealed moderate myopathy, and a muscle biopsy showed degenerating myofibers with variable sizes. The diagnosis of paraneoplastic dermatomyositis was made. This case highlights that, although rare, paraneoplastic dermatomyositis can be present with cholangiocarcinoma. Also, muscle inflammation can precede the clinical muscle symptoms, and paraneoplastic DM should be considered as a possible differential diagnosis in the assessment of cancer patients who present with abnormal muscle tracer uptake in PET-CT scans.
Sujets)
Sujet âgé , Femelle , Humains , Biopsie , Cholangiocarcinome , Creatine kinase , Dermatomyosite , Diagnostic , Diagnostic différentiel , Traitement médicamenteux , Électromyographie , Électrons , Inflammation , Faiblesse musculaire , Muscles , Maladies musculaires , Métastase tumorale , Tomographie par émission de positonsRésumé
Catastrophic antiphospholipid syndrome (APS) is defined as a rare, life-threatening autoimmune disorder leading to multiorgan failure. Probable APS, with clinical manifestations similar to APS without antiphospholipid antibodies, was suggested to be seronegative catastrophic APS. The triggering factors of catastrophic APS are various, including infection, trauma, malignancy, and surgery. In approximately 40% of patients, catastrophic APS develops from an unknown cause. We report a case of seronegative catastrophic APS due to an unknown origin. A 20-year-old man presented with cough, abdominal pain, skin lesions, tunnel vision, and watery diarrhea without fever. His symptoms and laboratory test suggested disseminated intravascular coagulation. Considering seronegative catastrophic APS, we treated with intravenous steroid and intravenous immunoglobulin, but the effects were limited. After weekly treatment with rituximab, an immune-modulating agent, his laboratory findings including thrombocytopenia and coagulation tests, returned to normal. We conclude that rituximab can be an effective treatment for seronegative catastrophic APS.
Sujets)
Humains , Jeune adulte , Douleur abdominale , Anticorps antiphospholipides , Syndrome des anticorps antiphospholipides , Maladies auto-immunes , Toux , Diarrhée , Coagulation intravasculaire disséminée , Fièvre , Immunoglobulines , Peau , Thrombopénie , RituximabRésumé
Here we report a case of a 72-year-old male patient recurred in bone marrow alone with pulmonary tumor embolism after an excision of extramammary Paget's disease of scrotum 3 years ago. The patient received paclitaxel/carboplatin chemotherapy with respiratory support in intensive care unit. Four days after chemotherapy, the oxygen demand decreased and the patient was transferred to general ward. The platelet count recovered after 2 weeks. Finally, he died of hepatic failure from Paget's disease hepatic involvement confirmed by liver biopsy at 10 months after recurrence. This is a rare case of recurred extramammary Paget's disease in bone marrow alone with pulmonary tumor embolism, which was properly diagnosed with high suspicion and was successfully treated with immediate chemotherapy.