Swellings in the Hand

The human hand is a small but important part of the body and makes us different from other creatures on this planet. The anatomy of the human hand comprises a delicate balance of bones, joints, tendons, ligaments, nerves, and blood vessels. Despite its remarkable complexity, the hand is susceptible to various conditions that manifest as lumps and bumps. These abnormalities can arise from a multitude of factors, including injuries, infections, tumours, and inflammatory conditions.

Lumps and bumps in the hand can originate from diverse sources. Traumatic injuries, such as fractures, contusions, and dislocations, often result in localized swelling and the formation of palpable masses. Additionally, repetitive strain injuries, commonly observed in occupations requiring repetitive hand movements, can lead to the development of ganglion cysts, or painful tenosynovitis of tendons, in the hand’s soft tissues.

Infections represent another significant cause of lumps and bumps in the hand. Abscesses, cellulitis, and septic arthritis can produce painful, tender swellings accompanied by redness, warmth, and restricted movement. Serious soft tissue infections such as necrotising fasciitis, may require long hospital stay and multiple surgeries if detected late and may ultimately lead to loss of limb or life.

Furthermore, benign and malignant tumours can manifest as lumps or bumps in the hand. Ganglion cysts, lipomas, and enchondromas are examples of benign growths that may arise from joint capsules, adipose tissue, or bone respectively. Enchondromas may present as painful fractures of the fingers.

Conversely, malignant tumors such as sarcomas or metastatic lesions can infiltrate the hand’s tissues, leading to palpable masses with concerning features such as rapid growth and tissue invasion. Enlarging skin lesions should be assessed due to risk of malignant transformation into skin cancer.

In between these two spectrums of tumours are a group of solid soft tissue tumours called tenosynovial giant cell tumours, formerly known as giant cell tumours of the tendon sheath. These are benign but locally aggressive tumours that can cause significant pain, swelling, and restricted movement. Lung metastases have been reported in patients with tenosynovial giant cell tumours.

Accurate diagnosis of lumps and bumps in the hand relies on a comprehensive evaluation encompassing patient history, physical examination, and diagnostic imaging studies. During the history-taking process, hand surgeons inquire about the onset, duration, progression, and associated symptoms of the hand abnormality. Additionally, they explore factors such as trauma, occupation, hobbies, and medical history, which may provide valuable clues regarding the underlying cause.

Physical examination of the hand involves assessing the size, shape, consistency, tenderness, and mobility of the lump or bump. Hand surgeons may employ manoeuvres such as palpation, range of motion testing, and provocative manoeuvres to elicit specific signs and symptoms. Moreover, evaluating the hand’s neurovascular status is essential to identify any concurrent nerve or blood vessel involvement.

Diagnostic imaging modalities play a pivotal role in characterizing lumps and bumps in the hand. X-rays facilitate the detection of bony abnormalities such as fractures, dislocations, or calcifications. Ultrasonography offers real-time visualization of soft tissue structures, aiding in the assessment of cystic lesions, masses, or fluid collections. Magnetic resonance imaging (MRI) provides detailed anatomical information and helps differentiate between benign and malignant lesions based on their signal characteristics and enhancement patterns. Contrast is usually necessary during the MRI.

The management of lumps and bumps in the hand varies depending on the underlying cause, severity of symptoms, and functional impairment. Conservative measures, including rest, immobilization, splinting, and application of ice packs, are often employed initially to alleviate pain and inflammation associated with acute injuries or inflammatory conditions. Splinting and occupational therapy are additional tools of treatment.

In cases where infection is suspected, prompt initiation of antibiotics is imperative to prevent the spread of infection and preserve hand function. Intravenous antibiotics may be needed for serious infections. Surgical drainage may be necessary for abscesses or infected cysts that fail to respond to conservative therapy.

Benign tumours such as ganglion cysts or lipomas may be managed conservatively with observation. Minimally invasive techniques offer advantages such as smaller incisions, faster recovery, and reduced postoperative morbidity.

Malignant tumours necessitate a multidisciplinary approach involving surgical resection, radiation therapy, chemotherapy, or targeted therapy, depending on the tumour type, stage, and patient’s overall health status. Early detection and intervention are crucial for optimizing outcomes and minimizing the risk of metastasis or functional impairment. The risk of amputation is significant.

Lumps and bumps in the hand pose diagnostic and therapeutic challenges due to the diverse array of potential causes and the intricate anatomy of the hand. A systematic approach encompassing thorough history-taking, physical examination, and appropriate diagnostic studies is essential for accurate diagnosis and tailored treatment planning. By employing a comprehensive management strategy incorporating conservative measures, surgical interventions, and adjuvant therapies, hand surgeons can effectively address hand abnormalities while optimising patient outcomes and preserving hand function.

Article by, 

Dr. Jon Chua Yul Chun
Consultant Orthopaedic, Hand & Miscrosurgeon