Interactive Case Study - November 2012

Question 1:

An 83-year-old Caucasian man presented with a 5-mm flesh-colored nodule on the right lower eyelid of several weeks duration. An incisional biopsy was performed (Figures 1-4).

Figure 1

Figure 2

Figure 3

Figure 4

Which of the following is the best diagnosis?

A.  Apocrine hidradenoma

B.  Apocrine hidrocystoma

C.  Endocrine mucin-producing sweat gland carcinoma

D.  Primary cutaneous mucinous carcinoma

E.  Malignant mixed tumor