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eFigure 6–22. A: Tinea corporis covering the buttocks and not showing areas of central clearing. Note how the color is silver rather than pink in this dark skinned individual. The differential diagnosis includes psoriasis, so a KOH prep was performed, and it was positive to confirm the diagnosis of tinea. B: Tinea corporis covering the back and showing well-demarcated borders. C: Tinea corporis with pustules and scale. KOH preparation was positive for branching hyphae. The pustules are a manifestation of an inflammatory response to the dermatophyte infection. (Reproduced with permission from Richard P. Usatine, MD, in Usatine RP, Smith MA, Mayeaux EJ Jr, Chumley HS. The Color Atlas and Synopsis of Family Medicine, 3rd ed. McGraw-Hill, 2019.) Three photos show the appearance of tinea corporis on different parts of the body.

Current Medical Diagnosis & Treatment 2025 > Tinea Corporis or Tinea Circinata

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eFigure 6–22. A: Tinea corporis covering the buttocks and not showing areas of central clearing. Note how the color is silver rather than pink in this dark skinned individual. The differential diagnosis includes psoriasis, so a KOH prep was performed, and it was positive to confirm the diagnosis of tinea. B: Tinea corporis covering the back and showing well-demarcated borders. C: Tinea corporis with pustules and scale. KOH preparation was positive for branching hyphae. The pustules are a manifestation of an inflammatory response to the dermatophyte infection. (Reproduced with permission from Richard P. Usatine, MD, in Usatine RP, Smith MA, Mayeaux EJ Jr, Chumley HS. The Color Atlas and Synopsis of Family Medicine, 3rd ed. McGraw-Hill, 2019.) Three photos show the appearance of tinea corporis on different parts of the body.

Current Medical Diagnosis & Treatment 2025 > Tinea Corporis or Tinea Circinata

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eFigure 6–22. A: Tinea corporis covering the buttocks and not showing areas of central clearing. Note how the color is silver rather than pink in this dark skinned individual. The differential diagnosis includes psoriasis, so a KOH prep was performed, and it was positive to confirm the diagnosis of tinea. B: Tinea corporis covering the back and showing well-demarcated borders. C: Tinea corporis with pustules and scale. KOH preparation was positive for branching hyphae. The pustules are a manifestation of an inflammatory response to the dermatophyte infection. (Reproduced with permission from Richard P. Usatine, MD, in Usatine RP, Smith MA, Mayeaux EJ Jr, Chumley HS. The Color Atlas and Synopsis of Family Medicine, 3rd ed. McGraw-Hill, 2019.) Three photos show the appearance of tinea corporis on different parts of the body.

Current Medical Diagnosis & Treatment 2025 > Tinea Corporis or Tinea Circinata

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eFigure 6–39. Cutaneous candidiasis intertrigo. Small peripheral “satellite papules and pustules that have become confluent centrally, creating a large, eroded area in the submammary region. (Reproduced, with permission, from Wolff K, Johnson RA, Saavedra AP, Roh EK. Fitzpatrick's Color Atlas and Synopsis of Clinical Dermatology, 8e. McGraw-Hill; 2017.) A patient with cutaneous candidiasis intertrigo exhibits large scaly erythematous rashes, with red papular lesions in the periphery, below both the breasts.

Current Medical Diagnosis & Treatment 2025 > Intertrigo

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eFigure 6–48. A linear pattern of allergic contact dermatitis from poison ivy. Note the impressive line of vesicles where the leaf brushed the skin. (Reproduced with permission from Richard P. Usatine, MD, in Usatine RP, Smith MA, Mayeaux EJ Jr, Chumley HS. The Color Atlas and Synopsis of Family Medicine, 3rd ed. McGraw-Hill, 2019.) A patient with contact dermatitis from poison ivy exhibits red patches with a series of tiny pustules over the skin of the forearm.

Current Medical Diagnosis & Treatment 2025 > Impetigo

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Figure 6–16. Bacterial folliculitis. Hair emanating from the center of the pustule is the clinical hallmark of folliculitis. (Reproduced with permission from Richard P. Usatine, MD, in Usatine RP, Smith MA, Mayeaux EJ Jr, Chumley H. The Color Atlas of Family Medicine, 2nd ed. McGraw-Hill, 2013.) A photo of small, pink, raised pustules surrounding individual hair follicles.

Current Medical Diagnosis & Treatment 2025 > Folliculitis (Including Sycosis)

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eFigure 6–50. A: Inflammatory acne showing pustules and nodules in a 17-year-old boy who uses a helmet while playing football in high school. B: Comedonal acne in a 15-year-old girl. Open comedones (blackheads) and closed comedones (whiteheads) are visible on her forehead. (Reproduced with permission from Richard P. Usatine, MD, in Usatine RP, Smith MA, Mayeaux EJ Jr, Chumley HS. The Color Atlas and Synopsis of Family Medicine, 3rd ed. McGraw-Hill, 2019.) Two photos show the appearance of inflammatory acne.

Current Medical Diagnosis & Treatment 2025 > Folliculitis (Including Sycosis)

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eFigure 6–50. A: Inflammatory acne showing pustules and nodules in a 17-year-old boy who uses a helmet while playing football in high school. B: Comedonal acne in a 15-year-old girl. Open comedones (blackheads) and closed comedones (whiteheads) are visible on her forehead. (Reproduced with permission from Richard P. Usatine, MD, in Usatine RP, Smith MA, Mayeaux EJ Jr, Chumley HS. The Color Atlas and Synopsis of Family Medicine, 3rd ed. McGraw-Hill, 2019.) Two photos show the appearance of inflammatory acne.

Current Medical Diagnosis & Treatment 2025 > Folliculitis (Including Sycosis)

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eFigure 6–57. Scabies. (Used, with permission, from TG Berger, MD, Dept. Dermatology, UCSF.) A photo of small, clustered, red pruritic vesicles and pustules covering the surface of the inner wrist.

Current Medical Diagnosis & Treatment 2025 > Scabies

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eFigure 6–70. Scale—scalp psoriasis. (Reproduced with permission from Richard P. Usatine, MD, in Usatine RP, Smith MA, Mayeaux EJ Jr, Chumley HS. The Color Atlas and Synopsis of Family Medicine, 3rd ed. McGraw-Hill, 2019.) Photo A is of a dry, scaly, white lower scalp with reddish periphery. Photo B is of white pustules over inflamed patch of skin on the patient’s arm.

Current Medical Diagnosis & Treatment 2025 > Psoriasis

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eFigure 6–70. Scale—scalp psoriasis. (Reproduced with permission from Richard P. Usatine, MD, in Usatine RP, Smith MA, Mayeaux EJ Jr, Chumley HS. The Color Atlas and Synopsis of Family Medicine, 3rd ed. McGraw-Hill, 2019.) Photo A is of a dry, scaly, white lower scalp with reddish periphery. Photo B is of white pustules over inflamed patch of skin on the patient’s arm.

Current Medical Diagnosis & Treatment 2025 > Psoriasis

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eFigure 6–86. Allergic contact dermatitis to Neosporin. (Used, with permission, from Lindy Fox, MD.) A photo of a reddish inflamed patch of skin with honey-colored, crusted pustules, on the inner arm of the patient.

Current Medical Diagnosis & Treatment 2025 > Contact Dermatitis

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eFigure 6–94. Acne vulgaris, severe papulopustular and nodular cystic form with scarring. (Reproduced with permission from Richard P. Usatine, MD, in Usatine RP, Smith MA, Mayeaux EJ Jr, Chumley HS. The Color Atlas and Synopsis of Family Medicine, 3rd ed. McGraw-Hill, 2019.) A photo of a patient with the left side of the face covered in a cluster of red, raised pustules extending from the forehead down to the chin.

Current Medical Diagnosis & Treatment 2025 > Acne Vulgaris

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Figure 6–32. Rosacea in a 34-year-old woman showing erythema, papules, and pustules covering much of the face. (Reproduced with permission from Richard P. Usatine, MD, in Usatine RP, Smith MA, Mayeaux EJ Jr, Chumley H. The Color Atlas of Family Medicine, 2nd ed. McGraw-Hill, 2013.) A photo of a woman’s face covered with red, raised patches of plaques clustered around the nose, and mouth and across the forehead.

Current Medical Diagnosis & Treatment 2025 > Rosacea

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Figure 22–7. Heliotrope rash in a patient who has anti-NXP2 dermatomyositis. (Used, with permission, from Rebecca L. Manno, MD.) The patient exhibits purple rashes and pustules around the orbits, prominently on the upper cheeks.

Current Medical Diagnosis & Treatment 2025 > Immune-Mediated Inflammatory Myopathies

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eFigure 22–35. Behçet disease: papulopustular lesions on the hands (A) and feet (B). (Reproduced, with permission, from Kelly AP, Taylor SC, Lim HW, Serrano AMA, editors. Taylor and Kelly's Dermatology for Skin of Color, 2e. New York, NY: McGraw Hill; 2016.) The patient exhibits small red annular papular rashes on the dorsal surface and fingers with mild diffuse erythema. The patient exhibits a small white pustule with a tiny crust on the first right metatarsal joint with a red erythematous patch around it.

Current Medical Diagnosis & Treatment 2025 > Behçet Disease

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eFigure 22–35. Behçet disease: papulopustular lesions on the hands (A) and feet (B). (Reproduced, with permission, from Kelly AP, Taylor SC, Lim HW, Serrano AMA, editors. Taylor and Kelly's Dermatology for Skin of Color, 2e. New York, NY: McGraw Hill; 2016.) The patient exhibits small red annular papular rashes on the dorsal surface and fingers with mild diffuse erythema. The patient exhibits a small white pustule with a tiny crust on the first right metatarsal joint with a red erythematous patch around it.

Current Medical Diagnosis & Treatment 2025 > Behçet Disease

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eFigure 22–45. (A) and (B) In this Black patient with palmoplantar psoriasis, yellow-brown macules and sterile pustules became confluent in areas, causing extensive scale, crust, and nail loss. (Reproduced, with permission, from Kelly AP, Taylor SC, Lim HW, Serrano AMA, editors. Taylor and Kelly's Dermatology for Skin of Color, 2e. New York, NY: McGraw Hill; 2016.) A patient exhibits thick purple red plaques with white scales and open ulcers with white pus spread on all the digits in both hands. The knuckles show the same plaque patches, more prominently on the right hand. A patient exhibits dark brown and purple red plaques with thick crusted white scales and hypopigmented patches spread on the plantar aspect of both feet and toes.

Current Medical Diagnosis & Treatment 2025 > Psoriatic Arthritis

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eFigure 22–45. (A) and (B) In this Black patient with palmoplantar psoriasis, yellow-brown macules and sterile pustules became confluent in areas, causing extensive scale, crust, and nail loss. (Reproduced, with permission, from Kelly AP, Taylor SC, Lim HW, Serrano AMA, editors. Taylor and Kelly's Dermatology for Skin of Color, 2e. New York, NY: McGraw Hill; 2016.) A patient exhibits thick purple red plaques with white scales and open ulcers with white pus spread on all the digits in both hands. The knuckles show the same plaque patches, more prominently on the right hand. A patient exhibits dark brown and purple red plaques with thick crusted white scales and hypopigmented patches spread on the plantar aspect of both feet and toes.

Current Medical Diagnosis & Treatment 2025 > Psoriatic Arthritis

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