Challenging Case

    Title Type
    Unusual metastasizing melanocytic tumor in a 28 year-old male: a variant of pigmented epithelioid melanocytoma? Case
    Variations on a theme of Merkel Case
    Sacral subcutaneous nodule Case
    Always a challenging diagnosis Case
    Livedoid blanching rash with focal arteriolar thrombi Case
    Painful non-healing ulcerations Case
    Subcutanous thrombotic vasculopathy Case
    53 year old man with a painful single lesion on the back Case
    A long-standing "rash" treated as tinea versicolor for 10 years Case
    Perineural dermatitis, possible borderline tuberculoid leprosy Case
    Case 2 Bi-temporal hair loss in 9 year old boy Case
    Acute erythema nodosum with early neutrophilic component or a neutrophilic dermatosis? Case
    The atypical nevus Case
    Another "baso/squamo-melanocytic tumor" Case
    A controversial entity Case
    Immunohistochemistry may confound the diagnosis Case
    Subcutaneous nodule of the calf, in a 17yo male Case
    Systemic lupus erythematosus associated Kikuchi's disease Case
    Acute Infectious Mononucleosis with lymphomatoid features mimicking acute leukemia Case
    anti-P200 pemphigoid Case
    Eccrine Carcinoma, Arising in Hidradenoma (Hidradenocarcinoma) Case
    A consultation from Norway Case
    Unusal clear cell adnexal carcinoma of the skin Case
    19 year-old female with firm erythematous papules on fingers and palms Case
    Rapidly growing lower eyelid nodule associated with conjunctival erythema in a 59 year-old woman. Case
    71 year old female with chronic atopic dermatitis and papules and vesicles Case
    An Indurated Plaque in the Right Infraorbital Region Case
    Disappearing vascular ectasias Case
    67 years old woman with pigmented rash Case
    44 year old male with acute onset alopecia Case
    Intracorneal pigmentation Case
    Online Only Case 3 (Brittle bones and a small subcutaneous mass) Case
    Case 30 (Something unexpected) Case
    Case 29 (I thought this was a bone tumor) Case
    A previously healthy 32 years old man, originally from Ethiopia, presented with fever, rash and neuropathy Case
    Malignant melanoma with regression Case
    Pigmented lesion on conjunctiva Case
    Rare biopsy of erythema ab igne Case
    Eccrine gland necrosis allowing presumptive diagnosis of thrombotic vasculopathy in a patient with acute lupus erythematosus, pulmonary alveolar hemorrhage, antiphospholipid antibodies and livedo reticularis with purpura Case
    grouped pink pedunculated papules in the penis Case
    A 52 year old male with a lesion on 4th left toe Case
    26 year old female with painful lesions on fingers and toes Case
    65 year old male with scaly pink papules on upper arms and trunk Case
    45-year-old woman who recently developed an erytymatous lesion, slightly raised, on her back Case
    Scottsdale Case #7 Case
    Scottsdale Case #4 Case
    36 year old male with longstanding rash on palms and soles Case
    47 year old female with painful fissuring of hands and feet as well as scaly erythematous plaques on the abdomen Case
    56 year old man with a longstanding lesion on the left ankle Case
    61 year old female with unilateral facial wrinkling and curling of the hair Case
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