Cutaneous Tuberculosis: Signs, Causes, And How To Treat

Written by Medicover Team and Medically Reviewed by Dr Girishma J , Dermatologists

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1. Causes 2. Find a Doctor 3. Diagnosis 4. Treatment 5. FAQs

Cutaneous tuberculosis is a rare bacterial infection that affects the skin. It is caused by the same bacteria that cause tuberculosis in the lungs. This infection occurs when the bacteria enter the skin through a cut or wound.

Cutaneous tuberculosis can manifest in various ways, such as sores or ulcers on the skin. It is important to seek medical attention if you suspect you have cutaneous tuberculosis, as prompt treatment is necessary. Remember to practice good hygiene to prevent the spread of the infection.

What are the Types Of Cutaneous Tuberculosis?

The most common types include lupus vulgaris, scrofuloderma, and tuberculosis verrucosa cutis. Lupus vulgaris appears as reddish-brown nodules, scrofuloderma as lumps or abscesses, and tuberculosis verrucosa cutis as wart-like growths.

These skin lesions may vary in appearance but are all caused by the bacteria Mycobacterium tuberculosis. Early diagnosis and treatment are crucial for managing cutaneous tuberculosis effectively.

Lupus vulgaris is a common type of cutaneous tuberculosis characterized by red-brown nodules or plaques that slowly enlarge and may ulcerate, typically affecting the face, neck, and extremities.
Scrofuloderma is a form of cutaneous tuberculosis resulting from the spread of infection from underlying lymph nodes, presenting as multiple abscesses and sinus tracts that can lead to scarring and disfigurement.
Tuberculosis verrucosa cutis, also known as warty tuberculosis, manifests as raised, warty lesions on the skin that have a verrucous appearance and are often seen on the hands and feet of individuals with compromised immune systems.

What Are the Symptoms of Cutaneous Tuberculosis?

Other symptoms include skin discoloration, swelling, and scarring. Some individuals may experience itching or discharge from the affected area. If you notice any unusual skin changes that don't heal, seek medical attention promptly for proper diagnosis and treatment.

Skin lesions that appear as painless nodules or ulcers on the surface of the skin are common symptoms of cutaneous tuberculosis.
Reddish or bluish patches on the skin that may be accompanied by swelling and tenderness can indicate the presence of cutaneous tuberculosis.
Persistent itching or a burning sensation in the affected area of the skin could be a sign of cutaneous tuberculosis.
Formation of abscesses or pus-filled sores that may not heal easily and can worsen over time are characteristic symptoms of cutaneous tuberculosis.
Development of skin ulcers with raised edges and a central crater-like appearance is a typical presentation of cutaneous tuberculosis.

What are the Causes of Cutaneous Tuberculosis?

Other mycobacteria species can also cause cutaneous infections. Risk factors include immunosuppression, overcrowded living conditions, and close contact with individuals who have active TB. Proper diagnosis and treatment are crucial to prevent complications and transmission.

Cutaneous tuberculosis can be caused by direct inoculation of Mycobacterium tuberculosis through skin trauma or injury, leading to localized infection.
Hematogenous spread of the bacteria from a primary tuberculosis focus in the body to the skin can result in cutaneous tuberculosis.
Reactivation of latent tuberculosis infection in the skin can manifest as cutaneous tuberculosis, particularly in individuals with compromised immune systems.
Ingestion or inhalation of contaminated milk or meat products infected with Mycobacterium bovis can lead to cutaneous tuberculosis through zoonotic transmission.
Cutaneous tuberculosis may also occur as a result of dissemination from a nearby lymph node or underlying bone infection caused by Mycobacterium tuberculosis.

When Should You See a Doctor for Cutaneous Tuberculosis?

Consulting a dermatologist, infectious disease specialist, or pulmonologist is important for early diagnosis and proper treatment.

Persistent skin lesions that do not heal
Unusual ulcers, nodules, or wart-like growths
Chronic discharge or worsening skin infections
History of tuberculosis exposure along with new skin symptoms
Symptoms accompanied by fever, fatigue, or weight loss

No doctors found for Cutaneous Tuberculosis in any location.

How is Cutaneous Tuberculosis Diagnosed?

A skin biopsy may then be performed to confirm the diagnosis by examining the tissue under a microscope. In some cases, additional tests such as a skin culture or PCR test may be needed. Early detection and treatment are crucial for managing cutaneous tuberculosis effectively.

Skin biopsy: A skin biopsy is a common diagnostic method for cutaneous tuberculosis, where a small sample of the affected skin is taken and examined under a microscope for the presence of tuberculosis bacteria.
Tuberculin skin test (Mantoux test): The Mantoux test involves injecting a small amount of tuberculin protein under the skin and observing for a delayed hypersensitivity reaction, which can indicate a tuberculosis infection.
Polymerase chain reaction (PCR) testing: PCR testing can detect the genetic material of the tuberculosis bacteria in a skin sample, providing a rapid and accurate diagnosis of cutaneous tuberculosis.

What is the Treatment for Cutaneous Tuberculosis?

Treatment for cutaneous tuberculosis typically involves a combination of antibiotics to fight the infection. Your healthcare provider may prescribe medications like isoniazid, rifampin, and ethambutol for several months to fully eradicate the bacteria. It's important to take your medications consistently and follow your doctor's instructions closely to ensure successful treatment and prevent the infection from spreading.

Antibiotic therapy is the mainstay of treatment for cutaneous tuberculosis, with a regimen typically including multiple drugs such as rifampicin, isoniazid, and pyrazinamide to effectively target the mycobacterium causing the infection.
Surgical intervention may be necessary in cases of extensive or refractory cutaneous tuberculosis, where excision of the affected skin lesions or abscess drainage can help improve symptoms and prevent the spread of the infection.
Topical therapy with medications like rifampicin or isoniazid in the form of creams or ointments may be used as adjunctive treatment for cutaneous tuberculosis to target localized skin lesions and aid in faster healing.

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What is the Recovery Process for Cutaneous Tuberculosis?

Recovery depends on early diagnosis, adherence to treatment, and the overall health of the individual.

Gradual healing of skin lesions with proper medication
Reduction in swelling, discharge, and infection over time
Regular follow-up to monitor treatment response
Possible scarring after healing of severe lesions
Maintaining hygiene and nutrition to support recovery

Frequently Asked Questions

1. How do I recognize the signs of cutaneous tuberculosis?

Look for red, swollen skin lesions that may develop into ulcers or nodules. They can be painful and accompanied by fever and weight loss.

2. How should I care for myself with cutaneous tuberculosis—what should I do and avoid?

Care includes completing antibiotic treatment, keeping lesions clean and covered, avoiding direct contact with others, and following up with a healthcare provider.

3. Can cutaneous tuberculosis lead to other health issues?

Yes, cutaneous tuberculosis can lead to complications like scarring, tissue damage, and spread of infection if not diagnosed and treated promptly.

4. What steps should I take for the management of cutaneous tuberculosis?

Treatment involves a combination of antibiotics like isoniazid, rifampin, and pyrazinamide for at least 6 months. Regular follow-ups are crucial for monitoring progress.