This is a professional medical reference book titled ‘Atlas of Normal Roentgen Variants That May Simulate Disease’ by Theodore E. Keats, M.D. This is the Fifth Edition, published by Mosby Year Book in 1992. The book is a comprehensive guide for radiologists and medical professionals to distinguish between normal anatomical variants and actual pathology in X-ray imaging. Condition details: The book features a blue cloth hardcover with gold gilt lettering. There is a previous owner’s name ‘HOYT’ written in black marker on the bottom edge of the page block as seen in images. The interior pages appear clean and the binding is tight.