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In this section we have spot diagnoses posted on a daily basis since June 2010, now over 4000! You can review the archived cases and read the suggested diagnoses by users and the final comment by the contributors.
Case are uploaded each week day by 10 am UK time with the correct diagnosis will generally be posted at 8 pm UK time. Why not view the most recent spot diagnosis and proffer a diagnosis?

December 2023

19 records in this category

  1. 70 M, Scalp vertex C+C x 2 cycles. ?SCC/ AK.
    Contributor: Iskander H. Chaudhry
    • 6 comments
    • 211 views
  2. A 53-year-old, African American lady presented with a painful lesion on the left thumb and quickly progressed to many new lesions on her left breast, right nostril, right suprapubic region, left heel and left calf within 18 months, clinical differential diagnoses were spongiotic dermatitis, lymphoproliferative disorder or others.<br /> <br /> What is the best diagnosis?<br /> a) Mycoses Fungoides.<br /> b) Primary cutaneous gamma-delta T cell lymphoma.<br /> c) Primary cutaneous CD4 positive small/medium sized T cell lymphoma.<br /> d) Dermal hypersensitivity reaction.<br /> e) Pityriasis lichenoides et varioliformis acuta.<br />
    Contributor: Admin_Dermpath
    • 6 comments
    • 222 views
  3. 54 year old female with lesion on right helix. Nevus vs cyst.
    Contributor: Uma Sundram
    • 5 comments
    • 189 views
  4. 32 year-old female with left upper eyelid cyst.
    Contributor: Dr. Hafeez Diwan
    • 4 comments
    • 178 views
  5. 36 F, lesion from the right arm
    Contributor: Joaninha Costa Rosa
    • 3 comments
    • 149 views
  6. 25 Male, Upper medial left buttok. ?6mm punch biopsy. Dar grey soft papule ?blue naevus ?sclerosing, haemangioma
    Contributor: Iskander H. Chaudhry
    • 4 comments
    • 151 views
  7. 50 M, Excision left mid back. Excoriated, inflamed lesion. Excision.
    Contributor: Iskander H. Chaudhry
    • 3 comments
    • 118 views
  8. 14 year old female with urticarial plaques and tense bullae and erosions. Bx is from the right leg.
    Contributor: Uma Sundram
    • 4 comments
    • 144 views
  9. 29 year-old female with right thumbnail lesion.
    Contributor: Dr. Hafeez Diwan
    • 2 comments
    • 111 views
  10. Clinical Details: A 76-year-old gentleman with a history of metastatic colon cancer to the liver and neuroendocrine carcinoma of the lung, who presented with a 3-month history of a non-tender progressively growing lesion on his right cheek, the clinical differential diagnosis was an abscess.<br /> What is the best diagnosis?<br /> a) Metastatic adenocarcinoma from colon primary.<br /> b) Primary cutaneous adenocarcinoma.<br /> c) Metastatic neuroendocrine carcinoma from lung primary.<br /> d) Epithelioid angiosarcoma.<br /> e) Melanoma
    Contributor: Admin_Dermpath
    • 4 comments
    • 175 views
  11. 80-year-old male with a central chest excision biopsy. A new crusted lesion with rolled edges. ?BCC. Renal transplant patient with history of SCC.
    Contributor: Iskander H. Chaudhry
    • 2 comments
    • 175 views
  12. F, 34 ,Blisters since birth
    Contributor: Dr. Mona Abdel-Halim
    • 3 comments
    • 80 views
  13. 17 year old male with penile cyst.
    Contributor: Uma Sundram
    • 3 comments
    • 81 views
  14. 61 year-old female with left flank lesion.
    Contributor: Dr. Hafeez Diwan
    • 4 comments
    • 140 views
  15. 47 year old man with a 0.5cm dark brown macule with irregular borders on the right arm.
    Contributor: Shashi Baksh
    • 5 comments
    • 169 views
  16. 57-year-old male with right helix 4mm punch biopsy. 3-6/12 - tender keratotic nodule, bleeds at times, 4mm diameter. ?SCC.
    Contributor: Iskander H. Chaudhry
    • 4 comments
    • 140 views
  17. 67 year-old female with right upper eyelid lesion.
    Contributor: Dr. Hafeez Diwan
    • 4 comments
    • 110 views
  18. Female, aged 40 thigh, BR
    Contributor: Joaninha Costa Rosa
    • 2 comments
    • 104 views
  19. 89-year-old female with left upper cheek incision. Biopsy of ?Superficial BCC Left cheek. Non-healing flat pink lesion over 12/12 HX.
    Contributor: Iskander H. Chaudhry
    • 3 comments
    • 116 views
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