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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
    • 1,342 views
  2. 32 year old female with history of severe aphthous stomatitis, who presents with rash on arms
    • 8 comments
    • 1,536 views
  3. 19 Female cyst scalp
    • 7 comments
    • 1,544 views
  4. 68 year old male with lesion on left scrotum.
    • 8 comments
    • 1,674 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
    • 1,600 views
  6. 73 M Left forearm biopsy (excision) Pigmented <br /> lesion - recent change <br />
    • 5 comments
    • 1,406 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
    • 1,425 views
  8. .
    • 4 comments
    • 1,297 views
  9. 24 y old male, Thigh lesion. Previously excised tumor in the same topography, recurrence?<br />
    • 7 comments
    • 1,729 views
  10. 25 year old woman, post partum, with enlarging vulvar mass.<br />
    • 11 comments
    • 1,845 views
  11. 19 year old male with recent pneumonia with mucositis and limited cutaneous blistering. This biopsy is from the thorax.
    • 6 comments
    • 1,484 views
  12. Left shoulder - excision biopsy with 2mm margin - GP scraps intradermal naevus however no histology for this. Noticed a week ago.
    • 5 comments
    • 1,377 views
  13. M75. Eyebrow. Few weeks, painful lesion
    • 5 comments
    • 1,423 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
    • 1,311 views
  15. 60 year old woman with solitary, slowly enlarging pigmented vulvar lesion. R/o melanoma.
    • 5 comments
    • 1,320 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
    • 1,609 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
    • 2,004 views
  18. 55 year old male with solitary linear eruption in left axilla with erosion. Otherwise healthy.
    • 5 comments
    • 1,283 views
  19. 13 year-old female with 18-20 month history of left forearm nodule, slowly increasing in size.
    • 8 comments
    • 1,564 views
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