ICD-11 classes
08 Diseases of the nervous system
Other disorders of the nervous system
8E4A — Paraneoplastic or autoimmune disorders of the nervous system
8E4A.3 — Paraneoplastic or autoimmune disorders of the muscle
4A41.11 — Paraneoplastic polymyositis

ICD-11 4A41.11 — Paraneoplastic polymyositis

Paraneoplastic is a rare cancer associated entity. It presents sub-, or acutely with proximal weakness, often including the neck flexors, dysphagia, rarely the respiratory muscles and the heart are involved. Sometimes muscle pain or myalgia occur. Myopathology shows a targeted, cell-mediated lymphocyte toxicity against muscle fibres in focal areas of inflammation within perimysial connective tissue and surrounding blood vessels. Muscle fibres may be destroyed by cytotoxic T cells.Non-Hodgkin’s lymphoma, lung, and bladder carcinoma are the most frequently observed associated cancer types.

The diagnosis includes nothing.

The diagnosis excludes nothing.

It has no clarifying diagnoses.

The diagnosis is coded elsewhere:

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