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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. 51 year old female with lesion on left knee. Image 4=MITF; Image 5=p16; Image 6=Ki67
    • 4 comments
    • 1,447 views
  2. F60. Bridge of nose. 1 year. Bleeds. ?fibrous papule, r/o BCC
    • 8 comments
    • 2,242 views
  3. F80. Lower lid. ?Sebaceous cyst, ?Naevus, ?Seborrhoeic keratosis
    • 12 comments
    • 2,433 views
  4. M85. Lower leg. Keratotic nodule. r/o SCC
    • 9 comments
    • 2,153 views
  5. M15. Known ALL. Rash 6/12. Treated as scabies. Widespread papules all over including genital area
    • 6 comments
    • 1,913 views
  6. 28y F, painful nodule
    • 6 comments
    • 1,643 views
  7. Spot Diagnosis
    • 11 comments
    • 2,467 views
  8. F48 biopsy left cheek. ?Granulomatous ?Cause
    • 8 comments
    • 1,358 views
  9. M47. Biopsy right cheek
    • 10 comments
    • 1,977 views
  10. F68, right leg
    • 5 comments
    • 1,564 views
  11. 68, scrotum
    • 6 comments
    • 1,668 views
  12. F5. Melanonychia. ?Melanoma. Nail plate and nail bed biopsy
    • 9 comments
    • 1,955 views
  13. 76 year-old male with pedunculated lesion on abdomen. Clinical impression: tag versus acrochordon. (Courtesy of Dr. Amanda Moyer)
    • 10 comments
    • 2,058 views
  14. M57, nasal root
    • 6 comments
    • 1,674 views
  15. 2 year old male with erythematous plaques; biopsy from axilla. R/o urticaria pigmentosa
    • 11 comments
    • 1,971 views
  16. 59 year old female with elbow lesion (courtesy of Dr Amanda Moyer)
    • 6 comments
    • 1,559 views
  17. 68F with foot nodule. Previous history of thymoma
    • 5 comments
    • 1,482 views
  18. F13, right calf
    • 6 comments
    • 1,562 views
  19. 59 year old female with left second toe lesion. (Courtesy of Dr. Amanda Moyer)
    • 4 comments
    • 1,512 views
  20. 63 year old male with lesion on finger
    • 10 comments
    • 1,880 views
  21. 77 year-old female with a lesion on the tragus. (Courtesy of Dr. Amanda Moyer)
    • 5 comments
    • 1,599 views
  22. 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
    • 1,952 views
  23. 50 year-old HIV positive male with failure to thrive for 3 months. He has a diffuse desquamating rash and edema
    • 8 comments
    • 1,823 views
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