Neurological complications of H1N1 infections are mostly found in children, but rare cases of acute encephalopathy and post-infectious encephalitis such as acute disseminated encephalomyelitis (ADEM) have been described in adults. We report a case of an adult presenting with a progressive and severe encephalopathy that developed after H1N1 respiratory infection resolution. Cerebrospinal fluid (CSF) analysis was normal, including negative PCR for herpes simplex virus, H1N1, influenza B and JC virus, and absent oligoclonal IgG bands in CSF and serum. Initial CT scan was normal, but later MRI showed posterior multifocal leucoencephalopathy with pulvinar sign. The delayed neurological findings together with the ancillary investigation, namely the MRI pattern with both grey and white matter involvement, raised the possibility of a post-infectious process, rather than an acute encephalitis. Despite aggressive immunotherapy, the patient experienced severe neurological sequelae. Early recognition of ADEM manifestations by those dealing with H1N1 infection is important as early immunotherapy may improve the prognosis.
RESUMO O fenómeno hikikomori, forma de isolamento social grave e prolongado, constitui um desafio diagnóstico. A nível conceptual, alguns autores diferenciam o hikikomori em primário e secundário. Este último conceito é utilizado quando está presente comorbilidade que, pelo menos parcialmente, explique a síndrome, enquanto na ausência de diagnóstico psiquiátrico denomina- se “hikikomori primário”. Os autores apresentam um caso clínico português com as mesmas características sociodemográficas e clínicas descritas no Japão. Esse caso ilustra que o hikikomori pode potencialmente ser explicado por uma perturbação psiquiátrica subjacente, nem sempre clara à apresentação, e a importância da avaliação cuidadosa e continuada no tempo, por forma a conseguir o esclarecimento diagnóstico e intervenção terapêutica adequada.
Good's syndrome is extremely rare and refers to an acquired B and T cell immunodeficiency in thymoma patients. The authors of this article present a case report of a 75-year-old, caucasian male patient previously subjected to examinations for secondary dementia and recurrent infections, which revealed paraneoplastic syndrome arose from thymoma. He underwent thymectomy, while his immunodeficiency syndrome sustained with frequent opportunistic infections, constantly requiring intravenous immunoglobulin treatment.
Q fever is a zoonotic disease caused by that usually presents with non-specific or benign constitutional symptoms. Diagnosis is often challenging and, after acute Q fever, 1%-5% of patients can develop chronic disease. We present an 80-year-old male patient who was admitted due to a 3 months history of fever, productive cough, myalgia, weight loss, headache and hearing loss. Chronic Q fever was confirmed by positive antiphase I immunoglobulin G. Frequent locations of chronic infection was discarded, and ear CT revealed a right mastoid infection. He was treated with doxycycline and hydroxychloroquine for 18 months with significant improvement. This is a rare case of chronic Q fever presenting with otomastoiditis that has never been described.
Primary thyroid lymphoma is a rare cause of both thyroid malignancy and extra-nodal lymphoma. It typically presents as a rapidly enlarging goitre with compressive symptoms. Histological analysis of a biopsy specimen is necessary to confirm the diagnosis. Awareness of this disease is important for early diagnosis and appropriate treatment. A 55-year-old man was admitted due to a 3-month history of cervical enlargement, facial and periorbital oedema and dyspnoea, apparently due to a superior vena cava syndrome. However, cervical ultrasound showed asymmetrical thyroid enlargement, lobulated contours and a hypoechogenic texture. A neck CT scan showed calibre reduction of the superior vena cava. The diagnosis of primary thyroid lymphoma was confirmed by open biopsy of the thyroid gland. The patient started treatment with rituximab with clinical improvement.LEARNING POINTSPrimary thyroid lymphoma is rare, accounting for less than 5% of thyroid malignancies and less than 2% of extra-nodal lymphomas, but should be suspected in the presence of a rapidly enlarging goitre.Fine needle aspiration biopsy is the initial technique of choice, but core needle biopsy or open surgical biopsy may be necessary to establish the diagnosis.Treatment and prognosis are dependent on accurate histological classification, with the disease generally treated successfully with chemotherapy.
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