Lesion often clinically and histologically confused with hemangioma

    The patient was a 58 year old man with bright red papule on his left arm clinically suspected to represent hemangioma

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    A 47-year-old man with erythematous patches and plaques and focally follicular pattern with open and closed comedons ,therapy-resistant.

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    Pigmented lesion back

    Case 1 Male 68. noted during skin check. PH of several melanomas with the surgical scars on his back not my work. If you think this is a melanoma how thick would it be?  Looking at the histology in the video below why is the dermatoscopic image so blue? Is it due to the dermal melanin in melanophages? This was reported as an in situ melanoma with a benign dermal neval component.

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    A very rare vascular proliferation: reactive, not to be confused with malignant.

    The patient was a 56 year old male with severe peripheral artery disease involving abdominal aorta, iliac arteries and lower extremities. He developed red slowly progressive rash involving lower abdominal wall and left thigh. A biopsy was performed.

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    Cutaneous B-cell lymphoma or pseudolymphoma?

    43 year old man with a skin coloured firm nodule (diameter: 1,5 cm) on the right upper back. History of pseudolymphoma 2008.

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    A serious diagnosis very easy to miss in routine sections

    The patient was a 59 year old male admited with neuroloigcal symptoms to rule out TIA/stroke.

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    Biopsy submitted to rule out mycosis fungoides

    The patient was a 37 year old male with a history of eczema. His eczema was treated with high potency steroid with some success. However, several lesions persisted in spite of treatment. These were dry pruritic patches.

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    Classic example of Leishmaniasis

    Presented for educational purposes only. Classic example of leishmaniasis

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    A classic example of patch stage mycosis fungoides

    The patient was a 77 year old male with a history of 4 cm erythematous asymptomatic macule on the left buttock detected during a routine dermatological examination. The duration of the lesion was unknown.

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    Low-grade B cell lymphoma, most likely primary cutaneous follicular center lymphoma with unusual phenotype: Any comments?

    This excisional biopsy was from the right cheek of a 75 year old male who presented with a skin colored nodule slowly enlarging over the last several months. 

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    "A cystic lesion on the eyelid"

    A 57 year old woman presented with a skin colored papule on the eyelid.

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    A benign soft tissue lesion: need some help

    Excisional biopsy was perfomed on a deep seated subcutaneous "mass" on a forearm of a 44 year old female. The lesion "was there for many years, at least 10 and is slowly growing". 

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    Diagnostic pitfall: malignant tumor of the eyelid

    A 72 year old male with eyelid tumor causing left upper lid tarsal thickenning. The biopsy was submited to rule out sebaceous carcinoma.

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    Potential diagnostic pitfall in an immunocompromised patient

    48 year old female with a long-standing history of systemic lupus erythematosus with lupus nephritis on systemic steroids presenting with erythematous nodules on the legs. The case was submitted with clinical diagnosis of possible lupus panniculitis.

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