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Figure 1 | Diagnostic Pathology

Figure 1

From: Trichogerminoma, a rare cutaneous follicular neoplasm with indolent clinical course: report of two cases and review of literature

Figure 1

Photomicrograph of the skin lesion of case 1. (A) Low-power view showed a well-circumscribed epidermal mass composed of basaloid lobules with a fibrous pseudocapsule. (B) Distinct appearance of centrolobular cell balls with undifferentiated basaloid cells displaying peripheral palisading and myxiod stroma. (C) CK5/6 immunoreactivity was more intense in the outer layer tumor cells than those within the round nests. (D) The peripheral rim of palisading basaloid cells were stained with Bcl-2, along with the central part non-stained, giving the appearance of rings.

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