Interactive Case Study - July 2015

Nodule on the scalp of a 76-year-old male

Anna Gray, MD; Eric Hossler, MD; George Lin, MD, PhD

A 76-year-old male presented with a lump on his right scalp for the past month that he recently traumatized on a shower bar.

Zoomable Virtual Slide

Figure 1. H&E 4x

Figure 2. H&E 20x

Figure 3. H&E 60x

Figure 4. CD31 4x

Figure 5. ERG 4x

What is the best diagnosis?

A.	Metastatic carcinoma

B.	Malignant melanoma

C.	Epithelioid Angiosarcoma

D.	Epithelioid sarcoma

E.	Anaplastic large cell lymphoma (ALCL)