Derm Dx: Pink to flesh-colored papules on a young child

Derm Dx: Pink to flesh-colored papules on a young child

A 17-month-old Hispanic female presents with a 6-week history of a rash most prominent on her arms and legs. A ...

Derm Dx: A rash on the nasolabial folds, eyelashes, and scalp

Derm Dx: A rash on the nasolabial folds, eyelashes, and scalp

A 68-year-old male presents for treatment of a rash affecting his nasolabial folds, eyelashes, forehead, and scalp. He complains that ...

Derm Dx: Multiple moles and extensive sun exposure

Derm Dx: Multiple moles and extensive sun exposure

The patient is a 47-year-old female requesting full body examination, as she has multiple moles and a family history of ...

Derm Dx: Bumps on the leg 10 years after cancer surgery

Derm Dx: Bumps on the leg 10 years after cancer surgery

The patient had salivary gland cancer diagnosed and surgically excised 10 years ago. Examination of the affected ankle reveals scattered ...

Derm Dx: A pruritic eruption on the arms and trunk

Derm Dx: A pruritic eruption on the arms and trunk

A patient’s rash began more than 2 weeks ago and has not responded to 1% hydrocortisone cream. He denies fever ...

Derm Dx: Simultaneous appearance of multiple indurated plaques

Derm Dx: Simultaneous appearance of multiple indurated plaques

Several of these dusky red indurated plaques appeared simultaneously on the back, thigh, and scalp of a 70-year-old nonsmoker in ...

Derm Dx: A factory worker with an itchy rash on the wrists and ankles

Derm Dx: A factory worker with an itchy rash on the wrists and ankles

A 42-year-old manufacturing plant worker presents with an itchy rash that was previously diagnosed as contact dermatitis. Mometasone cream has ...

Derm Dx: A reddish rash on the scrotum

Derm Dx: A reddish rash on the scrotum

A 38-year-old man presents with diffuse erythema of his scrotum. Oral fluconazole and topical econazole have been ineffective. He is ...

Derm Dx: Discolored patches on the torso of a woman with vulvar lichen sclerosus

Derm Dx: Discolored patches on the torso of a woman with vulvar lichen sclerosus

Examination of a 62-year-old woman with biopsy-confirmed lichen sclerosus of the vulvar region finds discolored patches with central telangiectasias on ...

Derm Dx: A growing knot in the palm

Derm Dx: A growing knot in the palm

A nonsmoker who admits to binge drinking presents with a firm, fixed cord in her palm and loss of mobility ...

Derm Dx: Whitening and crumbling of fingernails

Derm Dx: Whitening and crumbling of fingernails

An 11-year-old boy presents with hand and foot blisters, a slight fever, mouth irritation, and most recently, distal whitening and ...

Derm Dx: Purplish scrotal lesions in a man with hypertension

Derm Dx: Purplish scrotal lesions in a man with hypertension

A 70-year-old man who takes hydrochlorothiazide for hypertension presents with violaceous papules on his scrotum, which also has a reddish ...

Derm Dx: Extensive sun exposure and red lesions on the arms and legs

Derm Dx: Extensive sun exposure and red lesions on the arms and legs

A 65-year-old man presents with red lesions on his arms and legs. He has no history of skin cancer but ...

Derm Dx: A firm nodule with a positive skin crease sign

Derm Dx: A firm nodule with a positive skin crease sign

A 10-year-old boy presents with an asymptomatic firm nodule on his cheek. When the lesion is squeezed, a longitudinal crease ...

Derm Dx: An enlarging erythematous nodule on the forehead

Derm Dx: An enlarging erythematous nodule on the forehead

A 43-year-old woman presents with a growing nodule on her forehead. When it was smaller, it was "easily covered by ...

Derm Dx: A baby with a rash on the hands and feet

Derm Dx: A baby with a rash on the hands and feet

A 3-month-old Hispanic male presents with scattered flesh-colored papules and pustules on his palms and soles.

Derm Dx: Itchy bumps on a man who uses a hot tub regularly

Derm Dx: Itchy bumps on a man who uses a hot tub regularly

A man presents with itchy bumps on his arms and legs. He lives alone, does not have pets, and uses ...

Derm Dx: Hyperpigmented, hyperkeratotic papules covered by waxy scale

Derm Dx: Hyperpigmented, hyperkeratotic papules covered by waxy scale

A moderately obese 40-year-old white woman presents with an intermittently pruritic rash on her chest and flexural and anogenital regions. ...

Derm Dx: Why would this word appear on this man's back?

Derm Dx: Why would this word appear on this man's back?

A 20-year-old college student presents with a 4-week history of intermittent itching, and stroking of the skin of his back ...

Derm Dx: A new scalp lesion in a man with a history of cancer

Derm Dx: A new scalp lesion in a man with a history of cancer

An 84-year-old man with a history of sun exposure, basal and squamous cell carcinomas, and solar keratoses presents with a ...

Derm Dx: Geometrically arranged furrows on the neck

Derm Dx: Geometrically arranged furrows on the neck

Examination of a fair-skinned 80-year-old man who comes in for treatment of actinic keratoses finds geometrically arranged furrows on his ...

Derm Dx: Distressing male groin lesions

Derm Dx: Distressing male groin lesions

A 40-year-old man presents with a 2-year history of asymptomatic but psychologically distressing lesions on his groin.

Derm Dx: A rash about the mouth and chin

Derm Dx: A rash about the mouth and chin

A 21-year-old woman presents with a rash over her mouth and chin that clears when treated with oral prednisone and ...

Derm Dx: A diffuse erythematous eruption on a teenager

Derm Dx: A diffuse erythematous eruption on a teenager

A 16-year-old female presents with a diffuse erythematous eruption with minimal scale, sparing the palms, soles, and face.

Derm Dx: Ptosis following an outpatient cosmetic procedure

Derm Dx: Ptosis following an outpatient cosmetic procedure

A 54-year-old man presents with a 2-week history of a drooping eyelid. He is taking finasteride and underwent an outpatient ...

Derm Dx: Progressive discoloration of the buttocks

Derm Dx: Progressive discoloration of the buttocks

A 53-year-old woman presents with dusky red, slightly indurated, well-demarcated plaques on the buttocks. The condition is asymptomatic but of ...

Derm Dx: A pimple that didn't stop growing

Derm Dx: A pimple that didn't stop growing

A 44-year-old man presents with a 3-year history of what he calls a "pimple that didn't stop growing." He admits ...

Derm Dx: A hairdresser notices a scalp lesion on her client

Derm Dx: A hairdresser notices a scalp lesion on her client

A hairdresser notices a lesion on the scalp of an 89-year-old woman. The patient did not realize it was there; ...

Derm Dx: Vesiculation under the lip

Derm Dx: Vesiculation under the lip

A woman with a history of Hashimoto thyroiditis presents with hair thinning and an erythematous patch with vesiculation under her ...

Derm Dx: A rash that doesn't respond to steroids

Derm Dx: A rash that doesn't respond to steroids

On receiving treatment for seborrheic keratosis on his back, another rash is noted on a man’s chest and abdomen. The ...

Derm Dx: Scattered papules on a high school football player

Derm Dx: Scattered papules on a high school football player

A 16-year-old high school football player presents with scattered flesh-colored papules, and he does not know if his girlfriend, other ...

Derm Dx: An asymptomatic flesh-colored nodule of unknown duration

Derm Dx: An asymptomatic flesh-colored nodule of unknown duration

A flesh-colored nodule is found on examination of a 42-year-old fair-skinned woman. She does not know how long it has ...

Derm Dx: A growing rash on a man with a history of sun exposure

Derm Dx: A growing rash on a man with a history of sun exposure

A fair-skinned 48-year-old man with a history of ample sun exposure presents with dilated blood vessels, brownish hyperpigmentation, and thinning ...

Derm Dx: A painful lesion on the inside of the lip

Derm Dx: A painful lesion on the inside of the lip

A 50-year-old woman presents with a painful lesion on the inside of her upper lip. She has had similar lesions ...

Derm Dx: A rash on the axillae that sometimes itches or burns

Derm Dx: A rash on the axillae that sometimes itches or burns

A 45-year-old moderately obese man presents with well-demarcated erythematous patches on the axillae and an erythematous patch with scale on ...

Derm Dx: A rash about the umbilicus

Derm Dx: A rash about the umbilicus

A 53-year-old man presents with a well-demarcated zone of erythema about the umbilicus that has not responded to treatment with ...

Derm Dx: A rare neoplasm on the nose

Derm Dx: A rare neoplasm on the nose

An 87-year-old man presents with a 3-mm, flesh-colored papule on his nose. He has no history of skin cancer or ...

Derm Dx: A persistent pruritic rash on the buttocks

Derm Dx: A persistent pruritic rash on the buttocks

A 22-year-old man presents with a pruritic rash that was diagnosed as scabies 3 weeks earlier. However, the rash has ...

Derm Dx: A farmer's rash that worsened with topical corticosteroid

Derm Dx: A farmer's rash that worsened with topical corticosteroid

A farmer, aged 76 years, presents with a moderately pruritic rash on his chest that became worse when he used ...

Derm Dx: Dermatitis over the torso that looks like an allergic reaction

Derm Dx: Dermatitis over the torso that looks like an allergic reaction

A 28-year-old woman presents with a 3-week history of a minimally pruritic dermatitis involving her chest, back, and abdomen. It ...

Derm Dx: A new growth on a woman who has had skin cancer

Derm Dx: A new growth on a woman who has had skin cancer

A 59-year-old woman presents with a 3-month history of a growth on her forearm. She is a cigarette smoker and ...

Derm Dx: Is this Lyme disease?

Derm Dx: Is this Lyme disease?

A 20-year-old college student tests negative for Lyme disease but is placed on doxycycline. She questions the treatment and why ...

Derm Dx: A waxy, yellowish plaque since birth

Derm Dx: A waxy, yellowish plaque since birth

A 3-month-old male presents with a waxy, yellowish 3-cm plaque located on his scalp since birth.

Derm Dx: Deeply hyperpigmented, slightly raised papules

Derm Dx: Deeply hyperpigmented, slightly raised papules

A 30-year-old woman presents with a 2-month history of a pruritic eruption on her legs and back.

Derm Dx: Penile lesions in an HIV-positive man

Derm Dx: Penile lesions in an HIV-positive man

A 52-year-old, HIV-positive man presents with penile lesions that have persisted despite treatment with acyclovir.

Derm Dx: Linear dermatosis that follows the lines of Blaschko

Derm Dx: Linear dermatosis that follows the lines of Blaschko

A 3-year-old boy presents with linear bands of slightly hypopigmented papules that follow the lines of Blaschko.

Derm Dx: Striking pigmentation on a former chemical plant worker

Derm Dx: Striking pigmentation on a former chemical plant worker

A 43-year-old man who has impaired mentation and currently resides in an extended-care facility is being followed for discoid lupus ...

Derm Dx: Recurring rash after sun exposure

Derm Dx: Recurring rash after sun exposure

A 62-year-old woman presents for evaluation of a rash affecting both arms.

Derm Dx: Asymptomatic growth on nose

Derm Dx: Asymptomatic growth on nose

A 47-year-old woman requests evaluation for a growth on her nose.

Derm Dx: Painful lesion of the ear

Derm Dx: Painful lesion of the ear

A 68-year-old man comes to the clinic complaining of a painful lesion affecting his right ear.

Derm Dx: Dark spots on the lip

Derm Dx: Dark spots on the lip

A 33-year-old woman requests consultation for dark spots that have been present on her lip for several years.

Derm Dx: An asymptomatic papule on the thigh

Derm Dx: An asymptomatic papule on the thigh

A 55-year-old woman seeks consultation for a lesion on her left thigh.

Derm Dx: Multiple white papules on the penis

Derm Dx: Multiple white papules on the penis

A 30-year-old African-American man is evaluated for lesions on his penis.

Derm Dx: A hyperkeratotic plaque on the left temple

Derm Dx: A hyperkeratotic plaque on the left temple

A 63-year-old male was referred for evaluation and treatment of a lesion that arose on his left temple.

Derm Dx: A nodule on the forearm

Derm Dx: A nodule on the forearm

A 70-year-old man requests treatment for a lesion of his left forearm.

Derm Dx: A lesion on the lip

Derm Dx: A lesion on the lip

A 55-year-old man requests removal of a lesion affecting the vermilion border of his left lip commissure.

Derm Dx: A rare type of urticaria

Derm Dx: A rare type of urticaria

A 30-year-old man presents with a 5-year history of an episodic rash.

Derm Dx: A nodule on the scalp since childhood

Derm Dx: A nodule on the scalp since childhood

A 39-year-old woman requests removal of a growth on her scalp.

Derm Dx: Asymptomatic hyperkeratotic papules

Derm Dx: Asymptomatic hyperkeratotic papules

A 51-year-old man with limited mentation is referred for evaluation of 2 papules on his back.

Derm Dx: A large ulceration and tortuous varicosities

Derm Dx: A large ulceration and tortuous varicosities

A 90-year-old woman presents for evaluation and treatment of an ulceration that has been on her left leg for >1 ...

Derm Dx: A lesion on the scalp

Derm Dx: A lesion on the scalp

The patient is an 86-year-old woman who presents for evaluation of a growth on her scalp.

Derm Dx: An uncommon neoplasm

Derm Dx: An uncommon neoplasm

A 63-year-old white woman presents for evaluation of a bump on her left foot.

Derm Dx: Comedones on the cheeks

Derm Dx: Comedones on the cheeks

A 79-year-old man presents for treatment of a forehead cyst that has been excised surgically.

Derm Dx: An uncommon pruritic eruption

Derm Dx: An uncommon pruritic eruption

A 53-year-old nurse presents for evaluation of a minimally pruritic eruption affecting her arms and legs that has been present ...

Derm Dx: Plaques, joint deformity of the hands

Derm Dx: Plaques, joint deformity of the hands

A 45-year-old woman with a previously diagnosed pruritic skin condition presents with significant joint deformity that has developed slowly over ...

Derm Dx: A farm worker with a growing lesion

Derm Dx: A farm worker with a growing lesion

A 70-year-old man presents with a 1-month history of an enlarging, irregularly pigmented macule on his forehead.

Derm Dx: Warty plaques in a unilateral pattern

Derm Dx: Warty plaques in a unilateral pattern

A 13-year-old boy presents with nonpruritic, hyperpigmented warty papules and plaques.

Derm Dx: Intensely itchy purple papules

Derm Dx: Intensely itchy purple papules

A 32-year-old woman presents with a 3-week history of an itchy rash covering her whole body.

Derm Dx: Papules and multiple endocrine neoplasia type 1

Derm Dx: Papules and multiple endocrine neoplasia type 1

A 32-year-old white woman with a history of multiple endocrine neoplasia type 1 presents with multiple oval hypopigmented papules on ...

Derm Dx: Pruritic hyperpigmentation of the lips

Derm Dx: Pruritic hyperpigmentation of the lips

A 22-year-old woman presents with pruritic hyperpigmentation of her upper and lower lips that began approximately 2 weeks previously.

Derm Dx: Erythematous nodules after heart transplant

Derm Dx: Erythematous nodules after heart transplant

A 50-year-old woman who previously underwent a heart transplant presents to the clinic with nonpainful, nondraining erythematous nodules on her ...

Derm Dx: Refractory dermatitis in a man on chemotherapy

Derm Dx: Refractory dermatitis in a man on chemotherapy

Chemotherapy was initiated in a 68-year-old man with metastatic lung cancer.

Derm Dx: A pruritic eruption on the ankles

Derm Dx: A pruritic eruption on the ankles

A 42-year-old man presents with an intensely pruritic eruption affecting both ankles for approximately 2 weeks.

Derm Dx: A well-demarcated erythematous patch

Derm Dx: A well-demarcated erythematous patch

A 76-year-old woman who resides in an extended-care facility presents with a several-month history of rash involving her right buttock.

Derm Dx: Hyperkeratotic lesions of the palms and soles

Derm Dx: Hyperkeratotic lesions of the palms and soles

A 58-year-old African American man presents with multiple hyperkeratotic lesions on his palms and soles.

Derm Dx: Widespread salmon-colored patches

Derm Dx: Widespread salmon-colored patches

A 68-year-old man is referred to a podiatry clinic for evaluation and treatment of a nail condition manifested as distal ...

Derm Dx: Trunk dermatitis that does not fluoresce under Wood's light

Derm Dx: Trunk dermatitis that does not fluoresce under Wood's light

An African American man, aged 38 years, presents for evaluation of an extensive rash involving his chest and back.

Derm Dx: Cystic nodule on a man's forearm

Derm Dx: Cystic nodule on a man's forearm

A 58-year-old man requests removal of a lesion on his left forearm.

Derm Dx: Mid-scalp alopecia in a woman

Derm Dx: Mid-scalp alopecia in a woman

An African American woman, aged 48 years, presents with marked alopecia of her mid-scalp that has progressed over several years.

Derm Dx: Redness on a woman's face and torso

Derm Dx: Redness on a woman's face and torso

A woman presents with a rash that has developed on her face and upper torso.

Derm Dx: Scaling hyperkeratosis of one hand and both feet

Derm Dx: Scaling hyperkeratosis of one hand and both feet

A 58-year-old man requests evaluation for dermatitis that has been affecting his right hand for more than 1 year.

Derm Dx: Erythematous, indurated, follicular dermatitis on the shin

Derm Dx: Erythematous, indurated, follicular dermatitis on the shin

A 45-year-old woman presents with an itchy rash on her right leg.

Derm Dx: A recurring firm and hyperpigmented nodule

Derm Dx: A recurring firm and hyperpigmented nodule

A 45-year-old woman who is moderately obese presents with a recurrent lesion on her left leg.

Derm Dx: Rectal rash preceded by pain in an elderly man

Derm Dx: Rectal rash preceded by pain in an elderly man

A 71-year-old man presents for evaluation of a rash affecting his rectum and right buttock.

Derm Dx: Erythematous patches and plaques on a woman's forehead

Derm Dx: Erythematous patches and plaques on a woman's forehead

A 41-year-old fair-skinned woman requests a consultation for a rash that developed on her upper forehead more than 1 year ...

Derm Dx: Red lesions on the interphalangeal joints of the hands

Derm Dx: Red lesions on the interphalangeal joints of the hands

A 43-year-old white female presents with red lesions on her hands.

Derm Dx: Mass under the skin of the index finger

Derm Dx: Mass under the skin of the index finger

A 60-year-old woman presents for evaluation of a mass affecting her left index finger.

Derm Dx: Traumatized erythematous papule above the eyebrow

Derm Dx: Traumatized erythematous papule above the eyebrow

A man, aged 45 years, presents with a lesion above his right eyebrow that was recently traumatized.

Derm Dx: Growing hyperpigmented lesion on an elderly Hispanic male

Derm Dx: Growing hyperpigmented lesion on an elderly Hispanic male

An 80-year-old Hispanic male presents for evaluation of a lesion on the right side of his face.

Derm Dx: Hyperkeratotic central plaque on the arm

Derm Dx: Hyperkeratotic central plaque on the arm

A 58-year-old male presents for evaluation and treatment of a lesion on his arm that was first noted approximately 4 ...

Derm Dx: Nasal lesion with starburst pattern on dermoscopy

Derm Dx: Nasal lesion with starburst pattern on dermoscopy

A 3-year-old male presents for evaluation of a lesion on his nose that was first noted approximately 6 months ago ...

Derm Dx: Crusting and scaling of the skin in a nursing home resident

Derm Dx: Crusting and scaling of the skin in a nursing home resident

Dermatological consultation is requested for a 78-year-old woman residing in a nursing home.

Derm Dx: Erythematous, annular patch with atrophic center

Derm Dx: Erythematous, annular patch with atrophic center

A 79-year-old man presents with a recurring, asymptomatic lesion of his right foot.

Derm Dx: Semi-translucent tumor on the finger

Derm Dx: Semi-translucent tumor on the finger

A 59-year-old woman presents with a tender bump on her right middle finger.

Derm Dx: Rash that the patient suspects is Lyme disease

Derm Dx: Rash that the patient suspects is Lyme disease

A man, aged 64 years, presents for evaluation of an asymptomatic rash that developed on his left medial mid-thigh 3 ...

Derm Dx: Dark patches on the chin, trunk, arms, and thighs

Derm Dx: Dark patches on the chin, trunk, arms, and thighs

A 32-year-old Hispanic female presents requesting treatment for “dark spots” on her chin, trunk, arms, and thighs.

Derm Dx: Asymptomatic dermatitis that feels like sandpaper

Derm Dx: Asymptomatic dermatitis that feels like sandpaper

A 29-year-old woman presents with multiple folliculocentric keratotic papules that feel like sandpaper.

Derm Dx: Red papule following puncture by rose thorn

Derm Dx: Red papule following puncture by rose thorn

A lesion on a woman's finger that arose shortly after it was punctured by the thorn of a rose.

Derm Dx: Annular, erythematous patches

Derm Dx: Annular, erythematous patches

Multiple annular, erythematous patches and plaques scattered on the upper and lower extremities and trunk.

Sign Up for Free e-newsletters