Ann Dermatol.  2018 Jun;30(3):368-370. 10.5021/ad.2018.30.3.368.

Simultaneous Presentation of Trichilemmal Carcinoma and Syringocystadenoma Papilliferum within a Nevus Sebaceous

• Chun SH
• Kim BY
• Park JH
• Kim IH
• Ryu HJ

• KMID: 2419185
• DOI: http://doi.org/10.5021/ad.2018.30.3.368

Abstract

No abstract available.

MeSH Terms

Nevus*

Figure

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  Fig. 1 (A) Flesh-colored plaque with mildly verrucous surface on the scalp. (B) Papillomatosis is accompanied by many sebaceous glands (H&E, ×40). (C, D) More prominent papillomatosis is seen on the left. On the right are opening to the epidermis layer and several cystic invaginations extending into the dermis. Close-up view of the lower portion reveals features of decapitation secretion including cellular debris in the lumina (H&E; C: ×40, D: ×200). (E) A group of atypical squamous cells with peripheral palisading pattern within epidermis (H&E, ×100).

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  Fig. 2 (A) Although the tumor is mainly intraepidermal, invasion with pushing border is seen at the lower portion (H&E, ×40). (B) Close-up view of the tumor cells reveals cells with pleomorphic nuclei (H&E, ×200). (C) The normal epidermis on the right (thin arrow) shows keratinization with an intact granular layer. The tumor on the left (thick arrow) shows trichillemmal keratinization, or abrupt keratinization without recognizable granular layer (H&E, ×100). (D) The cytoplasm of the tumor cells is stained positive with periodic acid–Schiff (PAS) stain (×400). (E) These tumor cells were diastase labile, resulting in diminished degree of staining after PAS diastase application (×400).

Reference

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