Tuberculosis in the Kidney

Kidneys can be damaged by tuberculosis. Tuberculosis generally affects the lungs, but may cause infection in many other organs in the body. (Courtesy of the Centers for Disease Control.)

Tuberculosis in the Lung

Tuberculosis is caused by a group of organisms Mycobacterium tuberculosis, M. bovis, M. africanum and a few other rarer subtypes. Tuberculosis usually appears as a lung (pulmonary) infection. However, it may infect other organs in the body. Recently, antibiotic-resistant strains of tuberculosis have appeared. With increasing numbers of immunocompromised individuals with AIDS, and homeless people without medical care, tuberculosis is seen more frequently today. (Courtesy of the Centers for Disease Control.)

Pneumococci Organism

This picture shows the organism Pneumococci. These bacteria are usually paired (diplococci) or appear in chains. Pneumococci are typically associated with pneumonia, but may cause infection in other organs such as the brain (pneumococcal meningitis) and blood stream (pneumococcal septicemia). (Courtesy of the Centers for Disease Control.)

Female Urinary Tract

The female and male urinary tracts are relatively the same except for the length of the urethra.

Male Urinary Tract

The male and female urinary tracts are relatively the same except for the length of the urethra.

Melanoma of the Liver - CT Scan

This upper abdominal MRI scan shows multiple tumors in the liver which have spread (metastasized) from a malignant melanoma in an arm or leg. Note the light circular areas throughout the liver (seen mostly on the left side of the screen).

Skin Cancer, Raised Multi-Color Melanoma

Melanomas are sometimes called the patriotic cancer because they may be colored red, whitish, and blue (to blue-black) all in the same lesion. This lesion has multiple colors.

Skin Cancer, Melanoma - Flat, Brown Lesion

Melanomas are sometimes called the patriotic cancer because they may be colored red, whitish, and blue (to blue-black) all in the same lesion. This lesion has multiple colors.

Skin Cancer, Melanoma - Raised, Dark Lesion

Note the presence of multiple colors within this melanoma lesion. It is referred to as "patriotic cancer" because it is typically colored red, white, blue/black. This is a common appearance for a melanoma.

Polydactyly - An Infant's Hand

Extra digits may be present as an isolated finding, or they may occur as part of a syndrome, in which case other abnormalities are usually present. The most common form of polydactyly is an extra little finger.

Acne - Close-Up of Pustular Lesions

Acne lesions frequently contain pus. This close-up photograph shows small acne pustules with surrounding inflammation (erythema).

Acne, Cystic on the Chest

Cystic acne may occur across the upper chest as well as on the back.

Acne, Cystic on the Face

The face is the most common location of acne. Here, there are 4 to 6 millimeter red (erythematous) pustules, some with bridging scars and fistulous tract formation (connecting passages). Severe acne may have a profound psychological impact and may cause scarring. Effective treatments are available for this type of acne.

Acne, Vulgaris on the Back

Acne frequently occurs on the back. Here, there are 2 to 6 millimeter wide erythematous (red) pustules with large open and closed comedones. Permanent scarring may follow a severe case of acne. Men are more often affected on their shoulders and back than are women.

Skin Cancer, Melanoma on the Fingernail

Malignant melanoma is the most dangerous type of skin cancer. Melanomas beneath the fingernail appear as a black or bluish black discoloration. This type of malignancy spreads (metastasizes) readily.

Skin Cancer, Close-Up of Lentigo Maligna Melanoma

Increased risk for skin cancer, especially melanoma, is associated with chronic exposure to sunlight, blistering sunburns, and a family history of skin cancer.

Skin Cancer, Close-Up of Level III Melanoma

Malignant melanoma is the most dangerous type of the skin cancers. Typical features of melanomas include irregular borders, multiple colors within the lesion, rapid growth, and susceptibility to easy injury with bleeding. Any mole that exhibits any of these changes should be evaluated immediately by your physician.

Skin Cancer, Close-Up of Level IV Melanoma

Malignant melanoma is the most dangerous type of the skin cancers. Typical features of melanomas include irregular borders, multiple colors within the lesion, rapid growth, and susceptibility to easy injury with bleeding. Any mole that exhibits any of these changes should be evaluated immediately by your physician.

Skin Cancer, Melanoma Superficial Spreading

Malignant melanoma is the most dangerous type of the skin cancers. Typical features of melanomas include irregular borders, multiple colors within the lesion, rapid growth, and susceptibility to easy injury with bleeding. Any mole that exhibits any of these changes should be evaluated immediately by your health care provider.

Ascaris Lumbricoides Egg

This is a picture of an egg of Ascaris lumbricoides. Ascarides are roundworms, a common parasitic infection throughout the world. It is estimated that as many as 1 billion people (one sixth of the world population) may be infected with roundworms. This type of infection is more common in the warmer states of the United States.

Acne, Close-Up of Cysts on the Back

Cystic acne, or nodulocystic acne, is the most severe form of acne. Both pustules and hard red bumps are present in the skin. This form of acne is more difficult to treat and often requires taking an oral vitamin A derivative.

Acne, Cystic on the Back

Cystic acne, or nodulocystic acne, is the most severe form of acne. Both pustules and red bumps are present in the skin and scarring can be seen. The back is a common site for acne.

Drug Rash on the Back

Many medications may produce allergic rashes. This individual has had an allergic reaction to ampicillin.