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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?

May 2019

23 records in this category

  1. 76 year-old male with pedunculated lesion on abdomen. Clinical impression: tag versus acrochordon. (Courtesy of Dr. Amanda Moyer)
    • 10 comments
    • 2,234 views
  2. Spot Diagnosis
    • 11 comments
    • 2,644 views
  3. F5. Melanonychia. ?Melanoma. Nail plate and nail bed biopsy
    • 9 comments
    • 2,083 views
  4. M57, nasal root
    • 6 comments
    • 1,841 views
  5. 2 year old male with erythematous plaques; biopsy from axilla. R/o urticaria pigmentosa
    • 11 comments
    • 2,198 views
  6. 59 year old female with elbow lesion (courtesy of Dr Amanda Moyer)
    • 6 comments
    • 1,687 views
  7. 68F with foot nodule. Previous history of thymoma
    • 5 comments
    • 1,627 views
  8. M15. Known ALL. Rash 6/12. Treated as scabies. Widespread papules all over including genital area
    • 6 comments
    • 2,041 views
  9. F13, right calf
    • 6 comments
    • 1,700 views
  10. 51 year old female with lesion on left knee. Image 4=MITF; Image 5=p16; Image 6=Ki67
    • 4 comments
    • 1,568 views
  11. 59 year old female with left second toe lesion. (Courtesy of Dr. Amanda Moyer)
    • 4 comments
    • 1,622 views
  12. 28y F, painful nodule
    • 6 comments
    • 1,808 views
  13. M85. Lower leg. Keratotic nodule. r/o SCC
    • 9 comments
    • 2,327 views
  14. 68, scrotum
    • 6 comments
    • 1,814 views
  15. 63 year old male with lesion on finger
    • 10 comments
    • 2,066 views
  16. 77 year-old female with a lesion on the tragus. (Courtesy of Dr. Amanda Moyer)
    • 5 comments
    • 1,724 views
  17. M47. Biopsy right cheek
    • 10 comments
    • 2,107 views
  18. F80. Lower lid. ?Sebaceous cyst, ?Naevus, ?Seborrhoeic keratosis
    • 12 comments
    • 2,629 views
  19. F68, right leg
    • 5 comments
    • 1,713 views
  20. 66 year old female with new onset purpuric rash on upper thighs, fading over a day. Now with new purpuric rash on bilateral upper arms; also involving palms. Perivascular IgA is positive. What is your differential diagnosis?
    • 7 comments
    • 2,174 views
  21. 50 year-old HIV positive male with failure to thrive for 3 months. He has a diffuse desquamating rash and edema
    • 8 comments
    • 1,967 views
  22. F48 biopsy left cheek. ?Granulomatous ?Cause
    • 8 comments
    • 1,539 views
  23. F60. Bridge of nose. 1 year. Bleeds. ?fibrous papule, r/o BCC
    • 8 comments
    • 2,395 views
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