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Unfortunately, there is much too little known about the dynamics of fingernails and toenails, and the reason for it may well be, as the author suggests, the reluctance of patients to permit a biopsy examination of the periungual tissues. What little is known, however, is unusually well recounted in this third edition of V. Pardo-Castello's long-time popular book. Enlarged by some 100 pages over the previous edition, it contains the most up-to-date review of the literature, 462 references in all, and it is generously and well illustrated with 113 figures. The first 15 pages are devoted to fundamental anatomy, histology, and pathology of the nail. One long chapter is devoted to affections peculiar to the nail, another to onychodystrophies, one to congenital affections, and one to onychial changes due to systemic diseases. Special sections are devoted to the important subjects of radiation treatment of the nails, occupational affections, and ungual
Diseases of the Nails. Arch Dermatol. 1961;83(1):172. doi:10.1001/archderm.1961.01580070178028
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