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Introduction: Pulmonary Langerhans cell histiocytosis X (PLCHx) is a rare interstitial lung disease of unknown aetiology and occurs mostly in young smokers. Lung involvement alone accounts for >85% of the cases; other organs may be involved too (5%-15%). Case report: A 19-year-old boy was presented to the emergency service with sudden-onset, sharp, stabbing chest pain and dyspnoea. The patient had no history of smoking. His medical and family histories were negative for any disease. Thoracic radiography showed increased reticulonodular density with a near-total bilateral pneumothorax at the left and partially at the right. Hence, bilateral tube thoracostomy was performed. High-resolution computed tomography (HRCT) showed pronounced thin-walled cystic structures smaller than 10 mm and small millimetre-sized nodules in the upper and middle zones. Extrapulmonary Langerhans cell histiocytosis was excluded based on the radiological and laboratory findings. Based on the clinical and tomography findings, diagnosis of PLCHx was made. Conclusion: Our case highlights that PLCHx should be suspected in non-smokers. Further studies elucidating the aetiology of PLCHx are needed. [ABSTRACT FROM AUTHOR]

Objectives: This study aims to compare fear-avoidance (FA) beliefs of rheumatoid arthritis (RA) patients with osteoarthritis (OA) of hand patients and fibromyalgia (FM) patients and evaluate its relationship with RA activity and duration. Patients and methods: The study included 206 patients with RA (34 males, 172 females; mean age 49 years; range 20 to 72 years), 57 patients with FM (57 females; mean age 48 years; range 20 to 71 years), and 50 patients with OA of hand (4 males, 46 females; mean age 43 years; range 43 to 77 years). FA beliefs were assessed with modified Fear-Avoidance Belief Questionnaire (mFABQ). RA patients were dichotomized according to disease activity and disease duration separately; cutoff values were disease activity score 28 of 3.2 and six months of disease activity, respectively. Results: Modified Fear-Avoidance Belief Questionnaire scores were similar in patients with RA, OA of hand, and FM. RA patients in non-remission group had higher mFABQ scores. Moreover, mFABQ scores were similar in RA patients with early and established disease groups. Conclusion: Fear-avoidance beliefs of patients with RA were similar with OA of hand patients and FM patients. However, higher disease activity in RA was related with escalated FA beliefs. Further studies focusing on pathophysiology of FA beliefs in patients with RA are warranted for effective pain management of RA. [ABSTRACT FROM AUTHOR]

Asymptomatic primary hyperparathyroidism (PHPT) is characterized with autonomous overproduction of parathyroid hormone without signs or symptoms associated with hyperparathyroidism. Before symptoms become obvious, PHPT may affect structures like sacroiliac joints, which consist of bone. So, in the asymptomatic PHPT patients, structural and inflammatory changes in sacroiliac joints may lead to confusion during diagnosis workup of axial spondyloarthropathy. In this study, we evaluated active and chronic sacroiliac magnetic resonance imaging (MRI) changes relevant to sacroiliitis in the patients with asymptomatic PHPT and interpreted bone marrow edema within the scope of Assessment of SpondyloArthritis International Society-Outcome Measures in Rheumatology Clinical Trials (ASAS-OMERACT) criteria. Forty-nine patients with asymptomatic PHPT, 26 patients with newly diagnosed axial spondyloarthropathy (SpA), and 37 healthy controls were enrolled. All subjects were evaluated by sacroiliac MRI for four active (bone marrow edema, enthesitis, capsulitis, and synovitis) and four chronic (subchondral sclerosis, subchondral/periarticular erosions, periarticular fat deposition, and bony bridges/ankylosis) lesions relevant to sacroiliitis. Bone marrow edema compatible with ASAS-OMERACT active sacroiliitis criteria in sacroiliac MRI was fulfilled by 16.3 % (8/49) of the asymptomatic PHPT patients which was similar with controls but statistically lower than axial SpA. Moreover, asymptomatic PHPT patients and controls were similar for other chronic or active MRI findings. Also, we detected lower frequency of all other MRI findings, except enthesis, in asymptomatic PHPT patients according to axial SpA. Acute inflammatory including bone marrow edema fulfilling ASAS-OMERACT active sacroiliitis criteria and chronic structural sacroiliac lesions relevant to sacroiliitis in MRI were detected in asymptomatic PHPT similar frequency with controls but as expected, lower than axial SpA. But, these findings could not be attributed to excessive secretion of parathyroid hormone. [ABSTRACT FROM AUTHOR]

59-year-old man suffering from abdominal pain and having high acute phase reactants was admitted to hospital. Aortitis was discovered incidentally with magnetic resonance that was performed for another prediagnosis. Steroid and azathioprine combination was unsuccessful for remission and preventing relapses. However, steroid and methotrexate combination was successful for clinical and laboratory remissions. Also, the iliac artery occlusion was improved with stent implementation. In general, isolated idiopathic aortitis is a very rare entity and hard to be diagnosed. In this case, we describe a patient with aortitis that has only abdominal pain and treated with steroid and methotrexate combination. [ABSTRACT FROM AUTHOR]

In this study, we present a case of bilateral optic neuropathy and macular ischemia in the right eye associated with neurosarcoidosis. A 26-year-old woman presented to our clinic with complaints of bilateral blurred vision. Bilateral granulomatous anterior uveitis, vitritis, optic neuropathy, and macular ischemia were detected in the right eye in slit-lamp examination. She also reported complaints of fever, weakness, sweating, arthralgia, and headache for 2 months. She was referred to the pulmonary diseases unit of our hospital due to hilar lymphadenopathy seen in her chest x-ray, and biopsies were taken for diagnostic purposes. Histological analysis of the mediastinal lymph node biopsies revealed chronic, non-caseating, granulomatous inflammation. Furthermore, the patient was referred to a neurologist due to concomitant complaint of intense headaches. She was diagnosed with neurosarcoidosis supported by findings on cranial magnetic resonance imaging and lumbar puncture. She received a 3-day course of high-dose (1 g/day) intravenous steroid treatment (methylprednisolone) followed by a tapering dose of oral prednisone. The patient began receiving oral methotrexate 15 mg/week as a steroid-sparing agent. Significant improvement in neurological and ophthalmological symptoms occurred in the first week of treatment. In this case report, we emphasized that neurosarcoidosis should be included in the differential diagnosis of patients with both bilateral optic neuropathy and macular ischemia. Furthermore, early diagnosis and timely treatment of neurosarcoidosis are important for favorable visual outcomes. [ABSTRACT FROM AUTHOR]