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a very useful differential diagnosis - it comes up a lot, but like all other dermal presentations, it is a biopsy diagnosis
can divide into six categories or three:
| • | three categories Susan Burgin, MD = vascular vs. "bad" vs. benign adnexal neoplasm |
| • | or when you see a purple plum, run through all six categories in your head |
| 3. | Sarcoma DFSP, AFX, leiomyosarcoma |
| 4. | Vascular Tumor Kaposi's sarcoma, bacillary angiomatosis, angiosarcoma, lymphangiosarcoma of Stewart Treves, pyogenic granuloma |
ddx includes "proud flesh" i.e. exuberant granulation tissue; single or multiple friable nodules (which usually is obvious from history of a wound at the site, but not always)
*Lymphoma Cutis - includes B-cell lymphoma and tumor stage MF
*Leukemia Cutis -
| • | AML is most common type of leukemia to involve skin and gums |
| • | also keep in mind Sweet’s which although less dermal and more pseudo-vesicular, can look very purple plum-like, it is after all neutrophils just like AML |
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