M61.141

Clinical Causes: Trauma or injury to the hand, which can trigger abnormal bone growth as part of the healing process. Genetic predisposition or inherited conditions that affect tissue growth and ossification. Certain genetic disorders, such as fibrodysplasia ossificans progressiva (FOP), a rare hereditary disease causing widespread soft tissue ossification. Repeated or severe injuries that lead to persistent inflammation and abnormal tissue repair. Some cases have no identifiable cause, and the condition may develop spontaneously.

Key Symptoms: Progressive stiffness and rigidity in the fingers and hand. Formation of palpable,硬硬的硬块 or lumps within the muscles or soft tissues. Limited range of motion, making it difficult to perform everyday tasks. Pain or discomfort, especially with movement or pressure on the affected area. Visible deformities as the abnormal bone growth enlarges and distorts the hand’s shape. Swelling or inflammation may be present during active phases of ossification.

Diagnosis Path: Medical history review focusing on previous trauma or injury to the hand. Physical examination to detect hard masses, deformities, or restricted movement. Imaging studies such as X-rays, which reveal abnormal bone formation within soft tissues. Magnetic Resonance Imaging (MRI) to assess the extent of tissue involvement and differentiate from other soft tissue masses. Biopsy may be performed in uncertain cases to confirm the diagnosis and rule out malignant tumors.

Treatment Protocols: Physical therapy to maintain as much mobility as possible and prevent joint stiffness. Medications such as non-steroidal anti-inflammatory drugs (NSAIDs) to reduce inflammation and discomfort. Bisphosphonates might be considered to inhibit abnormal bone growth, though their effectiveness varies. Surgical intervention may be necessary in cases of severe deformity or functional impairment. Surgery is usually delayed until the heterotopic bone has fully matured to reduce recurrence risk. Monitoring disease progression through regular imaging and assessments. Supportive devices or splints to assist with mobility and daily activities.