2011
DOI: 10.1097/pas.0b013e318209cac7
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Primary Signet-ring Cell/Histiocytoid Carcinoma of the Eyelid

Abstract: Primary cutaneous signet-ring cell carcinomas are rare and aggressive neoplasms. These neoplasms have been mostly described in the eyelids, and more uncommonly, in the axillary skin. Histopathologically, the neoplasm seems to be composed of signet-ring cells or histiocytoid epithelial cells arranged in an Indian file growth pattern between collagen bundles of the dermis. Immunohistochemically, neoplastic cells expressed strong diffuse reactivity for CAM 5.2, CK7, high molecular weight CK, AE1/AE3 and MNF116 cy… Show more

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Cited by 63 publications
(25 citation statements)
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“…In regards to histopathology, primary cutaneous signet-ring cell/histiocytoid carcinoma is characterized by diffuse infiltration of the dermis by single cells, cords or rows (single file pattern) arranged between collagen fibers [ 1 ]. There is a relative sparing of the epidermis in all cases located in the eyelid.…”
Section: Discussionmentioning
confidence: 99%
See 1 more Smart Citation
“…In regards to histopathology, primary cutaneous signet-ring cell/histiocytoid carcinoma is characterized by diffuse infiltration of the dermis by single cells, cords or rows (single file pattern) arranged between collagen fibers [ 1 ]. There is a relative sparing of the epidermis in all cases located in the eyelid.…”
Section: Discussionmentioning
confidence: 99%
“…Currently, there are 32 published cases of primary cutaneous signet-ring cell carcinoma or histiocytoid carcinoma of the eyelid; the term used for diagnosis depends on the major cellular component of the lesion. The histogenesis of this tumour is controversial, however, most features point towards an apocrine differentiation [ 1 , 2 ]. The diagnosis is established by the exclusion of metastases from other primary sites especially the breast, gastrointestinal tract and urinary tract.…”
Section: Introductionmentioning
confidence: 99%
“…2 In the eyelid, immunostains may be particularly useful for distinguishing mastocytosis from primary signet-ring cell/histiocytoid carcinoma, which has a predilection for the eyelids. 17 Neoplastic mast cells are immunophenotypically similar to normal mast cells but coexpress CD2 or CD2 and CD25. 2 Membrane expression of CD25 on cutaneous mast cells in adults may be predictive of systemic mastocytosis, 18 but a consensus threshold for a positive result remains to be established.…”
Section: Discussionmentioning
confidence: 99%
“…Signet-ring-cell is a malignant histological cell type which is predominantly seen in carcinomas. Signet ring cells have frequently been reported in association with carcinoma of stomach [1] , but signet ring cells have also been reported in carcinomas of other tissues including the prostate [2] , bladder, gallbladder [3] , breast, colon [4] , ovarian stroma [5,6] , eyelid [7,8] . There have also been occasional reports of metastatic signet ring cell carcinoma to the testis, spermatic cord and scrotum.…”
Section: Introductionmentioning
confidence: 99%
“…Only about 3 cases of primary seminoma of testis with signet-ring-cell morphology have been reported in the literature. In general, a number of signet ring cell carcinomas have been reported to be associated with a worse prognosis [8][9][10] . We report a case of seminoma of testis associated with foci of signet-ring-cell morphology with a review of the literature.…”
mentioning
confidence: 99%