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Disease Comparison

Compare similarities and differences between two diseases.

Skin Cancer

Moderate
2
Symptoms
1
Causes
0
Treatments
5
FAQs
VS

Anal Fistula

Moderate
2
Symptoms
2
Causes
0
Treatments
5
FAQs

Overview

Skin Cancer
Skin cancer is a group of cancers that begin in cells of the skin. The major types include basal cell carcinoma, squamous cell carcinoma, and melanoma. Skin cancers may appear as a new or changing growth, sore, patch, or lesion. Early evaluation of suspicious skin changes can help identify cancer before it becomes more advanced.
Anal Fistula
An anal fistula is an abnormal tunnel that develops between the inside of the anus or rectum and the skin near the anus. It often develops after an infection or abscess in an anal gland. Symptoms may include persistent drainage, pain, swelling, irritation, or recurrent abscesses around the anus.

Symptoms

Shared
None
Only in Left Disease
Persistent Hoarseness Sleep Paralysis
Only in Right Disease
Fever Painful Urination

Causes

Shared
None
Only in Left Disease
Genetics
Only in Right Disease
Infection Inflammation

Diagnosis

Skin Cancer
Skin cancer is usually evaluated through a skin examination followed by biopsy of a suspicious lesion. The biopsy allows a pathologist to determine the type of cancer and its characteristics. Additional imaging or lymph-node evaluation may be recommended for selected cancers when there is concern about deeper invasion or spread.
Anal Fistula
An anal fistula is diagnosed through a medical history and examination of the anus and surrounding skin. The healthcare professional may look for an external opening, drainage, swelling, or tenderness. A digital rectal examination may help identify the tract. Imaging such as MRI or ultrasound may be used when the fistula is complex, recurrent, or difficult to identify during examination.

Prevention

Skin Cancer
Regular protection from ultraviolet radiation can reduce skin cancer risk. Measures include seeking shade, wearing protective clothing and a broad-brimmed hat, using broad-spectrum sunscreen appropriately, avoiding tanning beds, and limiting intense sun exposure. Regular awareness of new or changing skin lesions can also support early detection.
Anal Fistula
Preventing anal fistula mainly involves reducing the risk of anal abscesses and treating infections promptly. People with inflammatory bowel disease should follow appropriate medical treatment and monitoring. Persistent pain, swelling, drainage, or recurrent abscesses around the anus should be evaluated by a healthcare professional rather than left untreated.

Risk Factors

Skin Cancer
Risk factors vary by skin cancer type but include cumulative ultraviolet exposure, frequent sunburns, tanning-bed use, fair skin, light eyes or hair, a history of previous skin cancer, increasing age, certain inherited conditions, chronic immune suppression, and exposure to particular radiation or chemicals.
Anal Fistula
Risk factors include a previous anal abscess, inflammatory bowel disease such as Crohn disease, recurrent infections in the anal region, previous anal or rectal surgery, and conditions that interfere with normal healing or immunity. A history of an anal fistula also increases the likelihood of recurrence.

Treatment

Skin Cancer
Treatment comparison will be available soon.
Anal Fistula
Treatment comparison will be available soon.