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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. F80. Lower lid. ?Sebaceous cyst, ?Naevus, ?Seborrhoeic keratosis
    • 12 comments
    • 2,784 views
  2. Spot Diagnosis
    • 11 comments
    • 2,779 views
  3. 2 year old male with erythematous plaques; biopsy from axilla. R/o urticaria pigmentosa
    • 11 comments
    • 2,298 views
  4. 76 year-old male with pedunculated lesion on abdomen. Clinical impression: tag versus acrochordon. (Courtesy of Dr. Amanda Moyer)
    • 10 comments
    • 2,347 views
  5. 63 year old male with lesion on finger
    • 10 comments
    • 2,194 views
  6. M47. Biopsy right cheek
    • 10 comments
    • 2,219 views
  7. F5. Melanonychia. ?Melanoma. Nail plate and nail bed biopsy
    • 9 comments
    • 2,211 views
  8. M85. Lower leg. Keratotic nodule. r/o SCC
    • 9 comments
    • 2,463 views
  9. 50 year-old HIV positive male with failure to thrive for 3 months. He has a diffuse desquamating rash and edema
    • 8 comments
    • 2,095 views
  10. F48 biopsy left cheek. ?Granulomatous ?Cause
    • 8 comments
    • 1,650 views
  11. F60. Bridge of nose. 1 year. Bleeds. ?fibrous papule, r/o BCC
    • 8 comments
    • 2,514 views
  12. 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
    • 2,313 views
  13. M57, nasal root
    • 6 comments
    • 1,922 views
  14. 59 year old female with elbow lesion (courtesy of Dr Amanda Moyer)
    • 6 comments
    • 1,778 views
  15. M15. Known ALL. Rash 6/12. Treated as scabies. Widespread papules all over including genital area
    • 6 comments
    • 2,153 views
  16. F13, right calf
    • 6 comments
    • 1,807 views
  17. 28y F, painful nodule
    • 6 comments
    • 1,935 views
  18. 68, scrotum
    • 6 comments
    • 1,920 views
  19. 68F with foot nodule. Previous history of thymoma
    • 5 comments
    • 1,709 views
  20. 77 year-old female with a lesion on the tragus. (Courtesy of Dr. Amanda Moyer)
    • 5 comments
    • 1,856 views
  21. F68, right leg
    • 5 comments
    • 1,837 views
  22. 51 year old female with lesion on left knee. Image 4=MITF; Image 5=p16; Image 6=Ki67
    • 4 comments
    • 1,649 views
  23. 59 year old female with left second toe lesion. (Courtesy of Dr. Amanda Moyer)
    • 4 comments
    • 1,713 views
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