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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. F60. Bridge of nose. 1 year. Bleeds. ?fibrous papule, r/o BCC
    • 8 comments
    • 2,547 views
  2. F48 biopsy left cheek. ?Granulomatous ?Cause
    • 8 comments
    • 1,667 views
  3. 50 year-old HIV positive male with failure to thrive for 3 months. He has a diffuse desquamating rash and edema
    • 8 comments
    • 2,114 views
  4. 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
    • 2,332 views
  5. F68, right leg
    • 5 comments
    • 1,859 views
  6. F80. Lower lid. ?Sebaceous cyst, ?Naevus, ?Seborrhoeic keratosis
    • 12 comments
    • 2,805 views
  7. M47. Biopsy right cheek
    • 10 comments
    • 2,239 views
  8. 77 year-old female with a lesion on the tragus. (Courtesy of Dr. Amanda Moyer)
    • 5 comments
    • 1,875 views
  9. 63 year old male with lesion on finger
    • 10 comments
    • 2,235 views
  10. 68, scrotum
    • 6 comments
    • 1,936 views
  11. M85. Lower leg. Keratotic nodule. r/o SCC
    • 9 comments
    • 2,492 views
  12. 28y F, painful nodule
    • 6 comments
    • 1,953 views
  13. 59 year old female with left second toe lesion. (Courtesy of Dr. Amanda Moyer)
    • 4 comments
    • 1,727 views
  14. 51 year old female with lesion on left knee. Image 4=MITF; Image 5=p16; Image 6=Ki67
    • 4 comments
    • 1,664 views
  15. F13, right calf
    • 6 comments
    • 1,823 views
  16. M15. Known ALL. Rash 6/12. Treated as scabies. Widespread papules all over including genital area
    • 6 comments
    • 2,179 views
  17. 68F with foot nodule. Previous history of thymoma
    • 5 comments
    • 1,730 views
  18. 59 year old female with elbow lesion (courtesy of Dr Amanda Moyer)
    • 6 comments
    • 1,793 views
  19. 2 year old male with erythematous plaques; biopsy from axilla. R/o urticaria pigmentosa
    • 11 comments
    • 2,330 views
  20. M57, nasal root
    • 6 comments
    • 1,945 views
  21. F5. Melanonychia. ?Melanoma. Nail plate and nail bed biopsy
    • 9 comments
    • 2,230 views
  22. Spot Diagnosis
    • 11 comments
    • 2,791 views
  23. 76 year-old male with pedunculated lesion on abdomen. Clinical impression: tag versus acrochordon. (Courtesy of Dr. Amanda Moyer)
    • 10 comments
    • 2,359 views
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