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Article
March 1964

Longitudinal Grooving of Nails Due to Synovial Cysts

Author Affiliations

USA; USA; USA; TEX

Resident, Dermatology Service, Brooke General Hospital, Ft. Sam Houston, Tex (Maj Smith); Chief, Dermatology Service, Martin Army Hospital, Fort Benning, Ga (Maj Skipworth); Chief, Dermatology Service, Brooke General Hospital, Ft. Sam Houston, Tex (Lt Col Vander Ploeg).

Arch Dermatol. 1964;89(3):364-366. doi:10.1001/archderm.1964.01590270050011
Abstract

Two cases of longitudinal grooving of nails due to synovial cysts involving the posterior nail fold are reported. Both cases responded satisfactorily to intralesional injection of triamcinolone diacetate.

Longitudinal grooves of the nails may be idiopathic as in dystrophia mediana caniliformis of Heller or may be due to any pathological process which alters the nail matrix. One of the more unusual causes of the latter form of this nail dystrophy is the presence of a synovial cyst at the base of the nail. The following cases represent two examples of this condition which responded favorably to intralesional injection of triamcinolone diacetate (Aristocort diacetate).

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