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Merck Manual
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Veterinary /
StandaloneMedia /
Apocrine ductual adenocarcinoma between digits, 10-yr-old Newfoundland
Apocrine ductual adenocarcinoma between digits, 10-yr-old Newfoundland

This mass recurred 2 wk after excisional biopsy with clean narrow margins. Ulceration and cavitary necrosis is common and causes licking.

Courtesy of Dr. Alice Villalobos.

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Epidermal and Hair Follicle Tumors

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