A 50-Year-Old Man Comes to the Office for Evaluation of a Mass

question 492

Multiple Choice

A 50-year-old man comes to the office for evaluation of a mass on his back.  He has had the mass for several years, and it has increased only slightly in size during that time.  The patient has 2 other similar lesions, one on his arm and the other on his leg.  The lesions are painless, and he has no other symptoms.  Vitals signs are normal.  Examination shows multiple subcutaneous, soft, freely mobile, and nontender masses.  The lesion on his back is shown in the image. Histologic examination of the mass is most likely to show which of the following findings?

• A)Mature adipocytes arranged in lobules and separated by fibrous septa
• B)Pleomorphic malignant cells producing new woven bone
• C)Septal panniculitis with a mixed cellular infiltrate of lymphocytes and histiocytes
• D)Sheets of polygonal cells with prominent intercellular bridges and keratinization
• E)Spindle cells with wavy nuclei embedded in collagen stroma

---

Definitions:

Predicate Term

A term that expresses a property that can be attributed to a subject in a logical proposition.

Distributed Propositions

Statements in categorical logic where the term being discussed applies to all members of the category without exception.

Missing Premise

A logical condition where an argument seems incomplete because it lacks an unstated premise necessary to support the conclusion.

Valid Syllogism

A logical argument in which, if the premises are true, the conclusion must necessarily be true.