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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?

July 2019

19 records in this category

  1. M55. Right calf. Excision of neurofibroma?<br />
    • 3 comments
    • 1,429 views
  2. 32 year old female with history of severe aphthous stomatitis, who presents with rash on arms
    • 8 comments
    • 1,650 views
  3. 19 Female cyst scalp
    • 7 comments
    • 1,625 views
  4. 68 year old male with lesion on left scrotum.
    • 8 comments
    • 1,763 views
  5. 50 year old male with scalp lesion. The cells are CK7+ GATA3+, and negative for CK20,<br /> TTF1, CDX2, and PSA.
    • 7 comments
    • 1,712 views
  6. 73 M Left forearm biopsy (excision) Pigmented <br /> lesion - recent change <br />
    • 5 comments
    • 1,529 views
  7. 53 female. Right upper arm incision biopsy. 6/12 scaly plaques trailing scale in some 1cm - 10cm diameter.<br /> <br /> Partial response to steroid. Unresponsive to anti-fungal (itraconazole).
    • 6 comments
    • 1,599 views
  8. .
    • 4 comments
    • 1,386 views
  9. 24 y old male, Thigh lesion. Previously excised tumor in the same topography, recurrence?<br />
    • 7 comments
    • 1,844 views
  10. 25 year old woman, post partum, with enlarging vulvar mass.<br />
    • 11 comments
    • 1,951 views
  11. 19 year old male with recent pneumonia with mucositis and limited cutaneous blistering. This biopsy is from the thorax.
    • 6 comments
    • 1,628 views
  12. Left shoulder - excision biopsy with 2mm margin - GP scraps intradermal naevus however no histology for this. Noticed a week ago.
    • 5 comments
    • 1,489 views
  13. M75. Eyebrow. Few weeks, painful lesion
    • 5 comments
    • 1,508 views
  14. 60 year old male with rash on his back. He has been admitted with his fourth episode of acute renal failure.
    • 5 comments
    • 1,410 views
  15. 60 year old woman with solitary, slowly enlarging pigmented vulvar lesion. R/o melanoma.
    • 5 comments
    • 1,424 views
  16. 57 female <br /> <br /> Lesion on left thigh for 2-1/2 years growing in size and new area at healing adjacent <br /> Clinically indurated plaque with no epidermal change
    • 9 comments
    • 1,715 views
  17. F45. 3 chronic erosive lesions on forearms. Underlying inflammation. History of ankylosing spondylitis on adalimumab. ?Sweets or EED. Patient concerned about Lyme disease. To r/o malignancy. Biopsy left tricep area across ulcer ?infection e.g. Staph. No response to topical sterioid. Name the IHC stain please.
    • 11 comments
    • 2,129 views
  18. 55 year old male with solitary linear eruption in left axilla with erosion. Otherwise healthy.
    • 5 comments
    • 1,366 views
  19. 13 year-old female with 18-20 month history of left forearm nodule, slowly increasing in size.
    • 8 comments
    • 1,691 views
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