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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. Spot Diagnosis
    • 11 comments
    • 2,395 views
  2. F80. Lower lid. ?Sebaceous cyst, ?Naevus, ?Seborrhoeic keratosis
    • 12 comments
    • 2,380 views
  3. F60. Bridge of nose. 1 year. Bleeds. ?fibrous papule, r/o BCC
    • 8 comments
    • 2,212 views
  4. M85. Lower leg. Keratotic nodule. r/o SCC
    • 9 comments
    • 2,113 views
  5. 76 year-old male with pedunculated lesion on abdomen. Clinical impression: tag versus acrochordon. (Courtesy of Dr. Amanda Moyer)
    • 10 comments
    • 2,014 views
  6. 2 year old male with erythematous plaques; biopsy from axilla. R/o urticaria pigmentosa
    • 11 comments
    • 1,938 views
  7. M47. Biopsy right cheek
    • 10 comments
    • 1,935 views
  8. F5. Melanonychia. ?Melanoma. Nail plate and nail bed biopsy
    • 9 comments
    • 1,905 views
  9. M15. Known ALL. Rash 6/12. Treated as scabies. Widespread papules all over including genital area
    • 6 comments
    • 1,876 views
  10. 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
    • 1,846 views
  11. 63 year old male with lesion on finger
    • 10 comments
    • 1,830 views
  12. 50 year-old HIV positive male with failure to thrive for 3 months. He has a diffuse desquamating rash and edema
    • 8 comments
    • 1,786 views
  13. 68, scrotum
    • 6 comments
    • 1,632 views
  14. M57, nasal root
    • 6 comments
    • 1,615 views
  15. 28y F, painful nodule
    • 6 comments
    • 1,608 views
  16. 77 year-old female with a lesion on the tragus. (Courtesy of Dr. Amanda Moyer)
    • 5 comments
    • 1,559 views
  17. F68, right leg
    • 5 comments
    • 1,527 views
  18. 59 year old female with elbow lesion (courtesy of Dr Amanda Moyer)
    • 6 comments
    • 1,517 views
  19. F13, right calf
    • 6 comments
    • 1,512 views
  20. 59 year old female with left second toe lesion. (Courtesy of Dr. Amanda Moyer)
    • 4 comments
    • 1,461 views
  21. 68F with foot nodule. Previous history of thymoma
    • 5 comments
    • 1,452 views
  22. 51 year old female with lesion on left knee. Image 4=MITF; Image 5=p16; Image 6=Ki67
    • 4 comments
    • 1,416 views
  23. F48 biopsy left cheek. ?Granulomatous ?Cause
    • 8 comments
    • 1,323 views
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