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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
    • 2,195 views
  2. Spot Diagnosis
    • 11 comments
    • 2,180 views
  3. 2 year old male with erythematous plaques; biopsy from axilla. R/o urticaria pigmentosa
    • 11 comments
    • 1,711 views
  4. 76 year-old male with pedunculated lesion on abdomen. Clinical impression: tag versus acrochordon. (Courtesy of Dr. Amanda Moyer)
    • 10 comments
    • 1,784 views
  5. 63 year old male with lesion on finger
    • 10 comments
    • 1,655 views
  6. M47. Biopsy right cheek
    • 10 comments
    • 1,745 views
  7. F5. Melanonychia. ?Melanoma. Nail plate and nail bed biopsy
    • 9 comments
    • 1,679 views
  8. M85. Lower leg. Keratotic nodule. r/o SCC
    • 9 comments
    • 1,871 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
    • 1,598 views
  10. F48 biopsy left cheek. ?Granulomatous ?Cause
    • 8 comments
    • 1,148 views
  11. F60. Bridge of nose. 1 year. Bleeds. ?fibrous papule, r/o BCC
    • 8 comments
    • 1,994 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
    • 1,565 views
  13. M57, nasal root
    • 6 comments
    • 1,466 views
  14. 59 year old female with elbow lesion (courtesy of Dr Amanda Moyer)
    • 6 comments
    • 1,341 views
  15. M15. Known ALL. Rash 6/12. Treated as scabies. Widespread papules all over including genital area
    • 6 comments
    • 1,638 views
  16. F13, right calf
    • 6 comments
    • 1,358 views
  17. 28y F, painful nodule
    • 6 comments
    • 1,445 views
  18. 68, scrotum
    • 6 comments
    • 1,425 views
  19. 68F with foot nodule. Previous history of thymoma
    • 5 comments
    • 1,250 views
  20. 77 year-old female with a lesion on the tragus. (Courtesy of Dr. Amanda Moyer)
    • 5 comments
    • 1,339 views
  21. F68, right leg
    • 5 comments
    • 1,366 views
  22. 51 year old female with lesion on left knee. Image 4=MITF; Image 5=p16; Image 6=Ki67
    • 4 comments
    • 1,246 views
  23. 59 year old female with left second toe lesion. (Courtesy of Dr. Amanda Moyer)
    • 4 comments
    • 1,280 views
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