[Paraneoplastic rheumatologic syndromes in the elderly]

Area of Science:

• Rheumatology
• Oncology
• Geriatrics

Background:

• Malignant tumors are more common in the elderly.
• Paraneoplastic rheumatologic syndromes present with symptoms similar to primary rheumatic diseases.
• These syndromes arise from substances released by cancer cells or abnormal immune responses, not direct tumor invasion.

Purpose of the Study:

• To discuss selected paraneoplastic rheumatologic syndromes frequently observed in older individuals.
• To highlight the diagnostic challenges in differentiating these syndromes from idiopathic rheumatic diseases.
• To emphasize the importance of early diagnosis and treatment of the underlying malignancy.

Main Methods:

• Review of clinical features suggestive of paraneoplastic syndromes.
• Discussion of specific syndromes: carcinomatous polyarthritis, RS3PE, palmar fasciitis-polyarthritis, hypertrophic osteoarthropathy, tumor-induced osteomalacia, cancer-associated myositis, paraneoplastic scleroderma, vasculitis, and Raynaud's syndrome.
• Emphasis on diagnostic indicators like late onset, atypical presentation, and poor treatment response.

Main Results:

• Paraneoplastic syndromes can precede, coincide with, or follow cancer diagnosis.
• Clinical features such as onset in old age, rapid progression, and resistance to treatment may indicate a paraneoplastic origin.
• Effective treatment of the primary neoplasm can lead to the resolution of associated rheumatic symptoms.

Conclusions:

• Paraneoplastic rheumatologic syndromes are a significant concern in the elderly population.
• Recognizing specific clinical clues is crucial for distinguishing these syndromes from idiopathic rheumatic diseases.
• Timely diagnosis and management of the underlying cancer are essential for improving patient outcomes.