J67.6

Clinical Causes: Inhalation of spores from Cryptostroma corticale fungus present on freshly cut or decaying maple bark. Prolonged and repeated exposure to contaminated wood dust in forestry, woodworking, or bark stripping activities. Working in damp or humid environments where the fungus thrives on wood surfaces. Increased risk during peak spore release seasons when fungal growth is abundant.

Key Symptoms: Persistent cough that may produce sputum Shortness of breath or difficulty breathing, especially after exertion Fever and chills in some cases Fatigue and general malaise Chest discomfort or tightness Wheezing or unusual breath sounds

Diagnosis Path: Diagnosis typically involves a combination of occupational history assessment, clinical examination, and diagnostic tests. Lung function tests may reveal decreased lung capacity or airflow obstruction. Imaging techniques such as chest X-rays or CT scans can show inflammatory changes or infiltrates in the lungs. In some cases, a biopsy or sputum analysis may be conducted to identify Cryptostroma corticale spores or confirm alveolitis related to fungal exposure.

Treatment Protocols: Management of cryptostromosis involves eliminating exposure to the source of spores, which may include improving ventilation, using protective respiratory equipment, or changing work practices. Medical treatment may involve corticosteroids to reduce lung inflammation and supportive therapies such as oxygen supplementation for severe cases. Early intervention and removal from exposure are critical for preventing long-term lung damage.