The American Society of Dermatopathology

Case Study Archives

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Tumors

Asymptomatic nodule on a 55-year old male

Asymptomatic red nodule on the posterior auricular scalp

Painless pink nodule on a thigh of a 94-year-old man

Sweat gland tumors
19-year-old male with a left leg lesion
Asymptomatic nodule of the lower eyelid
Asymptomatic nodule on the finger

Fibrous tumors
45-year-old female with a finger mass (with zoomable virtual slide)
A 79-year-old-male with a "lump" on the thigh
An Infantile Scalp Mass (with zoomable virtual slide)
Back Mass, Elderly Male
Four-year-old with a flank mass
Grouped red-brown papules on the left dorsal hand
Mass on the foot of a 5-year-old girl
Painless periorbital mass
Subcutaneous mass in a healthy infant
Upper thigh nodule in a 13-year-old girl

Neural tumors
Stable nodular lesion on the midline lower back (with zoomable virtual slide)

Vascular tumors
85-year-old man with small pink papule
A slowly growing red nodule on the hand
Back Nodule

Other tumors
Multiple skeletal fractures and asymptomatic foot nodule (with zoomable virtual slide)
Solitary mass on the right thigh of an adolescent
Solitary nodular lesion on left leg
Subcutaneous nodule on the neck
Vulvar mass

Undifferentiated tumors
8-year-old boy with subcutaneous nodule of the upper arm

Melanocytic tumors
Flesh colored papule on the neck of a 46-year-old male
Speckled pigmented patch

Hematopoietic
Erythematous plaque on chest of 62-year-old female

Follicular
A 48-year-old female with a flesh-colored papule on the face
A verrucous plaque on the wrist
Asymptomatic hyperkeratotic papule of the left forearm

Mesenchymal
A 68-year-old female with 10 x 10 cm thigh mass


Inflammatory

Thirty-two-year-old female with intermittent pain of the umbilicus

Psoriasiform
70-year-old man with a scaly erythematous eruption

Bullous
Painful mucocutaneous eruption in a middle-aged man

Granulomatous or Histiocytic
70-year-old man with a scrotal papule


Infectious/Infestation

23-year-old immunocompromised female with asymptomatic dermal plaque on proximal thigh

A 79-year-old-male with a "lump" on the thigh

Asymptomatic penile ulcer

Indurated plaque on the right upper extremity

Bacterial and spirochetal
Eschar on the leg of a 56-year-old woman

Fungal
Pustular Dermatitis

Protozoa, helminth, marine and other infestations
Crusted plaque on the cheek of a medical student

Viral
27-year-old woman with several macules on the chest and neck


Other

47-year-old male with anosacral plaque

A 2-year-old girl with verrucous papules

A 63-year-old woman with an enlarging erythematous plaque on the forearm (with zoomable virtual slide)

A persistent gluteal plaque

Asymptomatic skin colored papules in a patient with rheumatoid arthritis

Enlarging right thigh mass in a morbidly obese patient

Multiple small yellow papules on the left lower neck


Genodermatoses

Diffuse dry, scaly skin with occasional blisters


Follicular neoplasm

66-year-old female with a scalp nodule

A slowly enlarging pearly papule


Autoimmune disorder

Vascular tumors
Eyebrow mass in a 55-year-old male
Nodule on the scalp of a 76-year-old male

Lymphomatous infiltrates
Asymptomatic ecchymotic plaques on the chest

Bullous
Intertriginous Lesions
Nine-month-old female with pruritic blistering


Fibrous

A 2-year-old girl with verrucous papules

A 34-year-old female with a slowly enlarging yellow plaque on her left lower abdomen

A mass in the breast of a 34-year-old female

Back Mass, Elderly Male

Tender nodule on left calf of a 48-year-old-male

Fibrous tumors
An 11-year-old healthy male with an asymptomatic nodule on the scalp
Solitary nodule on the left calf of an elderly male

A 34-year-old female with a slowly enlarging yellow plaque on her left lower abdomen


Lymphoma

90-year-old female with breast erythema and axillary lymphadenopathy