Photo Rounds

Lesions around anus

A 53-year-old HIV-positive man presented to his family physician (FP) with a 7-month history of painful lesions around the anus. He stated that it hurt to go to the bathroom and that he had noticed blood on the toilet tissue after wiping. He was not currently sexually active but had many male sexual partners in his young adult years and regularly engaged in receptive anal intercourse. He’d had perianal warts on and off for a number of decades. These had been treated with liquid nitrogen and topical medicines with temporary success—and frequent recurrences.

What’s your diagnosis?


 

Lesions around anus

The FP suspected invasive squamous cell carcinoma (SCC) related to human papillomavirus. He recognized that the patient was at a higher risk of this secondary to the HIV/AIDS diagnosis.

The FP recommended a shave biopsy (See the Watch & Learn video on “Shave biopsy.”) of the ulcerated lesion, and the patient consented to this procedure. The FP used a surgical marker to mark an area at the edge of the ulcer including some tissue outside of the ulcer. (This is recommended for biopsy of any ulcerated skin lesion.) He then injected 1% lidocaine with epinephrine into the edge of the ulcer for anesthesia and to minimize bleeding during the shave biopsy. The shave was performed and aluminum chloride, along with electrosurgery, was used to stop the bleeding.

The pathology showed an invasive SCC. Due to the size and location of the lesions, the patient was referred to Colorectal Surgery.

Photos and text for Photo Rounds Friday courtesy of Richard P. Usatine, MD. This case was adapted from: Karnes J, Usatine R. Squamous cell carcinoma. In: Usatine R, Smith M, Mayeaux EJ, et al. Color Atlas of Family Medicine. 2nd ed. New York, NY: McGraw-Hill; 2013:999-1007.

To learn more about the newest 3rd edition of the Color Atlas and Synopsis of Family Medicine, see: https://www.amazon.com/Color-Atlas-Synopsis-Family-Medicine/dp/1259862046/

You can get the Color Atlas of Family Medicine app by clicking on this link: usatinemedia.com

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