Ann Dermatol.  2014 Dec;26(6):771-773. 10.5021/ad.2014.26.6.771.

Sacrococcygeal Nodule in a Young Male Patient

• Song HS
• Kang HY

• KMID: 2264882
• DOI: http://doi.org/10.5021/ad.2014.26.6.771

Abstract

No abstract available.

MeSH Terms

Humans
Male

Figure

• 

  Fig. 1 (A) Solitary skin-colored nodule with scales is located in coccyx. (B) Hyperkeratosis and upperdermal edema, and marked increased dermal thickness are observed at the lower magnification (H&E, ×10). (C) Thickening of individual collagen bundles are noted at the higher magnification (H&E, ×100).

• 

  Fig. 2 (A) Abrupt angle of sacrococcygeal junction (arrow) under the nodular skin lesion was visualizedthroughsonogram. (B) Anterior dislocation of the coccyx (arrows) was visualized through T1-weighted sagittal view ofmagnetic resonance imaging examination.

Reference

1. Nakamura A, Inoue Y, Ishihara T, Matsunaga W, Ono T. Acquired coccygeal nodule due to repeated stimulation by a bicycle saddle. J Dermatol. 1995; 22:365–369.

2. Hashimoto I, Shono Y, Ishida S, Nakanishi H. Developmental mechanism of juvenile coccygeal fibrosis (so-called coccygeal pad). J Dermatol. 2013; 40:832–836.

3. Dekio I, Murata T. Coccygeal pad. Contact Dermatitis. 2003; 48:234–235.

4. Mullen M, Rabban J, Frieden IJ. Sacrococcygeal teratoma masquerading as congenital hemangioma. Pediatr Dermatol. 2013; 30:112–116.

5. de Parades V, Bouchard D, Janier M, Berger A. Pilonidal sinus disease. J Visc Surg. 2013; 150:237–247.