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| Code | Diagnosis | Comment | Score |
| anonymous | Kaposi's sarcoma (100%) | nil | 0 |
| anonymous | Syphilis | nil | 50 |
| anonymous | Dermal LYMPHOPLASMACYTIC INFILTRATION with prominent histiocytic and eosinophilic components. Haemosiderin and possible other pigments present. | To exclude (1) Tattoo reaction, (2) Chronic infections: Long Ziehl-Neelsen stain for atypical mycobacteria, Warthin Starry stain for spirochetes, Grocott stain for fungus, (3) Extranodal Rosai-Dorfman disease: S-100, expect to be positive in the histiocytes. Correlation with history of tattooing | 80 |
| anonymous | Rosai-Dorfman disease | Suggest confirm by S100 protein immunostaining | 100 |
| anonymous | Rosai-Dorfman disease. 100% | Confirm by S100. Special stains to exclude infective differential eg. Warthin-Starry stain for syphilis. | 100 |
| anonymous | Extranodal Rosai-Dorfman disease.(100%) | Do S100 protein stain to confirm. | 100 |
| anonymous | Shin biopsy - Rosai-Dorfman disease 100% | nil | 100 |
| anonymous | Dermal heavy lymphoplasmacytic infiltrates Infective (80%)e.g. syphilis, fungal, acid fast bacilli Necrobiosis (20%)e.g. rheumatoid nodule, necrobiosis lipoidica, granuloma annulare | Bugs stains : Warthin Starry (syphilis), ZN (acid fast bacilli), PAS (fungi) | 50 |
| anonymous | Rosai Dorfman disease. 100% | nil | 100 |
| anonymous | Rosai-Dorfman Disease. | Confirm diagnosis by immunohistochemistry for S100 protein. | 100 |
| anonymous | Skin lesion from right shin, incisional biopsy - Scar and reactive lymphoplasmacytic infiltration. | Suggest special stains (PASD, Grocott) to rule out microorganism, immunohistochemical staining for kappa and lambda (or molecular study for light chain restriction) to rule out monotypic plasma cell proliferation, please also correlate with history of plasma cell disease (including plasma cell castleman diasese) or immunosuppression (such as post-transplant). | 50 |
| anonymous | Suggestive of Rosai-Dorfman disease, with an incidental scar tissue probably due to previous biopsy | Tto be confirmed by S100(+), CD1a(-) and CD68(+) immunostaining | 100 |
| anonymous | Chronic inflammation with occasional foamy cells and foreign body giant cell, would perform PASD, warthin starry for fungus and spirochetes, S100 for Rosai Dorfman disease (100% probability) | nil | 100 |
| anonymous | Kaposi's sarcoma (100%) | nil | 0 |
| anonymous | SKIN - ROSAI-DORFMAN DISEASE (100%) | nil | 100 |