Cutaneous decidualized endometriosis A pseudomalignancy

A E Pellegrini, Arthur E. Pellegrini, Pellegrini AE
The American Journal of dermatopathology · 1982 · vol. 4(2) , pp. 171–174 · doi:10.1097/00000372-198204000-00012 · PMID:7103017 · W2334965026
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This paper describes a case of decidualized cutaneous endometriosis that presents with cytologic atypia and other features mimicking malignancy, potentially leading to misdiagnosis by unfamiliar dermatopathologists.

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This case report describes a rare instance of cutaneous decidualized endometriosis that presented with histological features mimicking malignancy, including cytologic atypia and circumscribed epithelial nodules. The authors highlight that the presence of mononuclear cells within and around these endometrial nodules, combined with a lack of mitotic activity, created a diagnostic challenge for dermatopathologists unfamiliar with gynecologic pathology. The paper emphasizes that such benign lesions can be misinterpreted as metastatic cancer due to their deceptive cellular appearance. This paper is centrally about endometriosis — specifically, the unusual presentation of ectopic endometrial tissue in the skin undergoing decidual change.

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Abstract

Mistaking a benign neoplasm for a malignant one is usually the result of the benign neoplasm having cytologic atypia or of normal tissue of one organ being present ectopically in another. In some instances the pathologist is simply not familiar with the lesion. A case of decidualized cutaneous endometriosis is described in which the histologic features included cytologic atypia, circumscription of epithelial nodules, glandular spaces, mononuclear cells within the around the endometrial nodules, and no mitoses. This histologic pseudomalignancy is not common and can be misinterpreted as metastatic is not common and can be misinterpreted as metastatic malignancy by dermatopathologists not familiar with gynecologic pathology.
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EXTRAORDINARY CASE REPORT: PDF Only Cutaneous decidualized endometriosis A pseudomalignancy - A. E. Pellegrini The American Journal of Dermatopathology 4(2):p 171-174, April 1982. Mistaking a benign neoplasm for a malignant one is usually the result of the benign neoplasm having cytologie atypia or of normal tissue of one organ being present ectopically in another. In some instances, the pathologist is simply not familiar with the lesion. A case of decidualized cutaneous endometriosis is described in which the histologie features included cytologie atypia, circumscription of epithelial nodules, glandular spaces, mononuclear cells within and around the endometrial nodules, and no mitoses. This histologie pseudo-malignancy is not common and can be misinterpreted as metastatic malignancy by dermatopathologists not familiar with gynecologic pathology. Copyright © Lippincott-Raven Publishers.

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Condition tags

endometriosis

MeSH descriptors

Endometriosis Pregnancy Complications Skin Neoplasms Adult Cicatrix Cicatrix Cicatrix Diagnosis, Differential Endometriosis Endometriosis Endometriosis Female Humans Neoplasm Metastasis Neoplasm Metastasis Pregnancy Pregnancy Complications Pregnancy Complications Skin Neoplasms Skin Neoplasms

Citation neighborhood

Papers in the corpus that this work cites (lower rings, blue) and that cite this one (upper rings, green). Dot size scales with the paper's in-corpus citation count — bigger dot = more influential within the endo/adeno field. Click a dot to open that paper. [ expand to 2 hops ] — adds papers reached through this work's immediate citers/citees. Heavier; up to 60 extra dots.

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