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PubMed · 11495528

Multiple linear eccrine spiradenomas with eyelid involvement.

S Gupta·B D Radotra·I Kaur·S Handa·B Kumar
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Abstract

Eccrine spiradenoma is an uncommon tumour of the sweat gland and usually occurs as a solitary small painful nodule. Very rarely, it may present as multiple tumours arranged in a linear/zosteriform fashion. We present the case of a 23-year-old female who had multiple spiradenomas arranged linearly from the midline of forehead to the left corner of the mouth and a few lesions also on the margin of the left eyelid. The lesions were probably along the Blaschko's lines. Tumours were excised surgically in stages. Literature search revealed only 13 reported cases of linear/zosteriform/naevoid multiple spiradenomas and only four cases of solitary spiradenoma of the eyelid. The review of reported cases suggests that arrangement of tumours in a linear/zosteriform pattern is an important diagnostic clue for multiple (naevoid) spiradenomas.

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Adenoma, Sweat GlandAdultBiopsy, NeedleEyelidsFemaleFollow-Up StudiesHumansSweat Gland NeoplasmsCase ReportsJournal ArticleReview

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S Gupta, B D Radotra, I Kaur, S Handa, B Kumar. 2001. Multiple linear eccrine spiradenomas with eyelid involvement.. https://doi.org/10.1046/j.1468-3083.2001.00234.x

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PubMed2002

An immunohistochemical and ultrastructural study of syringocystadenoma papilliferum.

BACKGROUND: Syringocystadenoma papilliferum is a benign hamartomatous tumour of the skin. The histogenesis of this tumour is still controversial. There have been few reports regarding immunohistochemical investigations using only a limited range of antibodies and ultrastructural studies on this rare tumour. OBJECTIVES: To elucidate the immunohistochemical and ultrastructural properties of this tumour. METHODS: We investigated the immunohistological patterns of 12 different anticytokeratin (CK) antibodies and several other markers in five cases of this tumour, comparing them with the patterns in adult sweat glands. One of these cases was also evaluated ultrastructurally. RESULTS: The luminal columnar cells of the tumour were mostly positive for CK7 and more than 70% were positive for CK19. These cells showed the heterogeneous expression of CK1/5/10/14, CK14 and CK5/8. These patterns were also observed in the luminal cells in the secretory or the ductal portion of the adult sweat glands. The basal cuboidal cells of the tumour almost constantly expressed CK1/5/10/14, CK5/8, CK14 and CK7 (except for one case), similar to the patterns of basal cells in the transitional portion and myoepithelial cells in the sweat glands. However, the basal tumour cells expressed CK19 and vimentin heterogeneously, and alpha-smooth muscle actin focally (three cases). Ultrastructurally, the constituent epithelial cells were mainly divided into three types: luminal cells, basal cells and clear cells. The luminal tumour cells bore features of the secretory or ductal luminal cells of sweat glands, although they were somewhat immature in appearance. The basal tumour cells were fundamentally basaloid in nature. The clear cells were undifferentiated or primitive in appearance, suggesting stem or progenitor cell properties. Transitional forms between the clear cells and the other two cell types were also identified. CONCLUSIONS: The tumour epithelium was composed of several cell types demonstrating various developmental stages from the primitive clear cells to the basal cells demonstrating a tendency to differentiate toward basal cells in the apocrine transitional portion or myoepithelial lineage, or luminal cells toward the ductal or secretory epithelium. These results support the classical concept that syringocystadenoma papilliferum is a hamartomatous tumour that arises from pluripotent cells.

Adenoma, Sweat Gland↗