Sanford JA, Strausborger SL, Lewin-Smith MR, Royer MC. Cutaneous Gamna-Gandy Bodies: An Unusual Case of Dystrophic Calcification.
J Cutan Pathol 2022;
49:570-574. [PMID:
35020219 DOI:
10.1111/cup.14202]
[Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Revised: 12/07/2021] [Accepted: 01/07/2022] [Indexed: 11/30/2022]
Abstract
Dystrophic calcification is a common histopathologic finding that can be concomitant with a plethora of diseases, ranging from self-limited infections to insidious malignancies. Gamna-Gandy bodies (GGBs) are a form of dystrophic calcification associated with chronic hemolysis and are typically observed in the spleen. In this report, we present a case of a 92-year-old man who presented with a four-millimeter blue papule that was biopsied given the concern for a blue nevus. The subsequent histopathological examination of the biopsy specimen showed a dermal organizing hematoma adjacent to pale yellow to brown, refractile material within fibrotic collagen consistent with GGBs. Scanning electron microscopy with energy dispersive x-ray analysis (SEM/EDXA) revealed that the structures were composed of carbon (39%), oxygen (32%), iron (16%), phosphorus (7%), calcium (5%), and sodium (1%). Fourier transform infrared spectroscopy (FTIR) identified amorphous calcium phosphate. GGBs have not been previously described in the skin and have been rarely characterized with SEM/EDXA in other sites. This article is protected by copyright. All rights reserved.
Collapse