UNASSIGNED: Inflammatory conditions often mimic musculoskeletal presentations, causing diagnostic delays in primary and secondary care. Physiotherapists can play a pivotal role in the early recognition, triage, and onward referral for inflammatory conditions such as polymyalgia rheumatica (PMR). While PMR is relatively rare, recognition of its characteristic presentation, alongside elevated serum inflammatory markers, is a much-needed step to initiate appropriate intervention following specialized rheumatological consultation.
UNASSIGNED: This case details the assessment and diagnosis of a 62-year-old male referred to a secondary care spine center for persisting bilateral buttock pain presumed to be of spinal origin. A thorough initial evaluation by an orthopedic-triage physiotherapist raised the suspicion of PMR upon identification of the following salient inflammatory features: sudden onset of bilateral buttock and shoulder pain and stiffness, morning stiffness lasting one hour, pain aggravated by prolonged inactivity, and a positive response to non-steroidal anti-inflammatory medication.
UNASSIGNED: Further investigations revealed elevated inflammatory markers warranting prompt rheumatology consultation and subsequently confirming the diagnosis of PMR. Early initiation of high dose oral corticosteroid therapy resulted in immediate relief of pain and associated symptoms.
UNASSIGNED: This case highlights the significance of recognizing salient inflammatory features in persistent musculoskeletal complaints, particularly in the context of the evolving scope of physiotherapy roles internationally. While further investigations and rheumatological consultation are required for the definitive diagnosis of many inflammatory conditions, including PMR, greater clinician awareness of salient inflammatory features can aid the earlier identification and subsequent triage of such cases.

Remitting seronegative symmetrical synovitis with pitting oedema is a rare rheumatological condition, predominating in the elderly male. It is characterised by the abrupt onset of marked pitting oedema, symmetrical distal synovitis, absence of rheumatoid factor and an excellent response to glucocorticoids. RS3PE may be the harbinger of a malignancy so the diagnosis should prompt evaluation and exclusion of such condition; in these cases, the response to glucocorticoids is only partial and treating the neoplasia is essential. The differential diagnosis includes late-onset rheumatoid arthritis, polymyalgia rheumatica and calcium pyrophosphate crystal-related arthritis. We present the case of a patient with remitting seronegative symmetrical synovitis with pitting oedema associated with clear cell renal cell carcinoma.

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The primary treatment of choice for polymyalgia rheumatica (PMR) is corticosteroids, which are better avoided for elderly patients susceptible to PMR. The cases of five patients cured with only a small dosage of 600 mg/day ibuprofen without steroids or methotrexate are reported. Their clinical features were compared with those of the 26 PMR patients who had steroids and/or methotrexate in addition to ibuprofen. PMR was diagnosed based on the 2015 EULAR/ACR criteria. They were all females aged 73-80. They all had no giant cell arteritis or autoantibodies. Nonsteroidal anti-inflammatory drugs (NSAIDs) other than ibuprofen had not worked in four cases; for the one, ibuprofen was the first NSAID. Their serum CRP levels were 1.57-12.8 mg/dL at ibuprofen introduction. Colchicine was co-administered in two patients. At the next visit three to seven days after ibuprofen introduction, they all showed a clear recovery with a CRP level decrease. Ibuprofen tapering was started within three months, and no relapse was until two to five years\' follow-up. Comparison with the 26 patients who had additional steroid and/or methotrexate showed that the disease duration until ibuprofen introduction was statistically significantly shorter in the five patients (1.40±0.65 vs 3.28±2.98 months). Ibuprofen would be the first-line drug for PMR, and its earliest use would be beneficial.

BACKGROUND: Parasitic infections could be an important triggering factor for autoimmune diseases. We present a clinical case of concomitant polymyalgia rheumatica (PMR) and giant cell arteritis (GCA) induced with cystic echinococcosis (CE).
METHODS: A 74-year-old male was admitted with a 2-month history of progressive pain at the shoulders and hip, movement restriction, and constitutional symptoms. As a result of the examinations performed due to rheumatological complaints, PMR and GCA were diagnosed. The cystic appearance, which was incidentally detected in the liver 6 months ago and not examined at that time, was found to be hydatid cyst. Medical treatment was initiated for all three conditions and the patient\'s symptoms improved significantly.
CONCLUSIONS: Parasite infections may cause various autoimmune diseases because of molecular mimicry or sustained immune activation. Echinococcus granulosus is a very complex multicellular parasite and highly immunogenic for humans. Some body parts of the parasite, the outer surface and secreted particles, stimulate the host immune system strongly.
CONCLUSIONS: The first case in the literature of coexistence of PMR and GCA associated with CE. Autoimmune diseases should be evaluated in patients with CE. Furthermore, CE should be considered in patients with autoimmune diseases in the presence of a cyst.

We present a rare case of metastatic renal cell carcinoma in a patient who developed giant cell arteritis (GCA) after the administration of checkpoint inhibitor therapy with nivolumab and ipilimumab. The patient was initially treated with a combination of nivolumab and ipilimumab, showing a near-complete response with minimal side effects. However, after several cycles of checkpoint inhibitor therapy, the patient developed symptoms consistent with GCA, leading to a halt in the immunotherapy. This report highlights the complexity of managing the adverse effects of immunotherapeutic agents and the importance of a multidisciplinary approach in the management of complications such as GCA.

Giant cell arteritis (GCA) is closely associated with polymyalgia rheumatica (PMR). We herein report an 82-year-old woman who developed GCA during PMR treatment. She initially presented with shoulder pain and was diagnosed with PMR based on elevated serum C-reactive protein (CRP) levels and bursitis detected in both shoulders on ultrasonography (US). Treatment was initiated with a daily dose of 15 mg prednisolone (PSL), which led to rapid symptom alleviation, and the dosage was tapered to 1 mg/day. One month later, she developed myalgia extending from the lumbar region to the thigh and tenderness in the left temporal region. However, no abnormalities in the temporal artery were observed on US. Although the PSL dose was increased to 2 mg for relapse of PMR, the symptoms did not improve. One week later, she developed occipital pain with an increased CRP level of 9 mg/dL. She was diagnosed with GCA based on the 1990 ACR Classification Criteria. Fluorodeoxyglucose-positron emission tomography/computed tomography (FDG-PET/CT) detected anomalous accumulations in the bilateral superficial temporal and vertebral arteries, but not in the larger vessels. We therefore diagnosed her with cranial-type GCA. At this time point, we repeated US and found a halo sign in the temporal artery. Although epithelioid and giant cells were not observed in the temporal artery biopsy, vascular inflammatory findings such as disruption of the internal elastic lamina and chronic inflammatory cell infiltration were noted. Symptoms improved immediately and CRP levels decreased after the PSL dose was increased to 30 mg daily. To mitigate the risk of steroid-induced diabetes, tocilizumab was introduced, and gradual tapering of PSL was implemented. In conclusion, we encountered a case of GCA that developed after PSL reduction during the course of PMR. PET/CT confirmed intracranial artery inflammation and facilitated a definitive diagnosis. Although PET/CT cannot be routinely performed for diagnose in Japan, we consider it useful as an adjunctive diagnostic tool.

Polymyalgia rheumatica (PMR) is a systemic inflammatory disease of the elderly population that increases in incidence as age advances. It is characterised by the sudden or sub-acute onset of symptoms affecting the shoulder and pelvic girdles, often accompanied by constitutional symptoms. Due to the lack of consensual diagnostic criteria and specific laboratory or radiological investigations for PMR, its diagnosis can be very challenging, particularly because it can be mimicked or masked by other geriatric syndromes. PMR responds well to glucocorticoid treatment, but if left untreated, can lead to morbidity and poor quality of life. We present the case of an 87-year-old male who presented with a one-week history of localised pain in the left hip joint, later involving the contralateral hip. Previously able to ambulate unaided, his mobility was now severely impaired. Due to his Alzheimer\'s dementia and multiple comorbid geriatric conditions, extensive investigations were undertaken before a diagnosis of atypical PMR was reached. Treatment with a low dose of prednisolone led to a full recovery. This case highlights the inconsistency between an atypical presentation and the classic presentation of PMR and draws attention to the possibility of missed diagnosis in older, frail patients. Atypical symptomatology on top of cognitive impairment and language barriers can be easily overlooked and left untreated and could lead to severe adverse outcomes. Accurate diagnosis is crucial, as PMR is readily diagnosed, but the treatment with glucocorticoids, though generally straightforward, can pose challenges, particularly when dealing with polypharmacy and multiple coexisting health conditions.

Immune-checkpoint inhibitors (ICIs) have changed the management of advanced cancers. However, patients with pre-existing autoimmune diseases (ADs) have usually been excluded from clinical trials of ICIs due to concerns about exacerbation of AD. Here, we combined ICIs with selective immunosuppressant treatment in a metastatic lung adenocarcinoma patient with active pre-existing polymyalgia rheumatica (PMR). Remarkably, the strategy led to durable response and no exacerbation of PMR. Thus, we provide the first clinical evidence of treating metastatic cancer with ICIs and concomitant use of tocilizumab and hydroxychloroquine for active pre-existing PMR.

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