Göktay Fatih, Güneş Pembegül, Akpolat Nebahat Demet, Ferhatoğlu Zeynep Altan, Önenerk Mine
J Am Podiatr Med Assoc. 2017 Nov;107(6):551-555. doi: 10.7547/16-127.
Eccrine poroma is a rare benign adnexal neoplasm originating from a portion of the intraepidermal eccrine sweat gland duct and the acrosyringium. Typically, the lesions are asymptomatic, slow-growing nodules, which may be found in any sweat gland-bearing area. Multiple red lacunae, glomerular vessels, hairpin vessels, flower- and leaf-like vascular patterns, a polymorphic vascular pattern, globule/lacunae-like structures, a frog egg-like appearance, and comedo-like openings have been defined as characteristic dermoscopic patterns of the disease. We report a case of eccrine poroma in an unusual periungual and subungual location mimicking ingrown toenails. The dermoscopic findings of the lesions were compatible with those of eccrine poromas located in areas other than the periungual area. Recurrence was observed after the first excisional biopsy. There was no recurrence 10 months after the second surgical intervention, and near-complete regrowth of the nail plate was achieved. Eccrine poroma should be considered as a differential diagnosis in the presence of slow-growing, erythematous, painful, hemorrhagic papular lesions located in the periungual area in conjunction with a prediagnosis of ingrown toenails and malignant processes.
小汗腺汗孔瘤是一种罕见的良性附属器肿瘤，起源于表皮内小汗腺导管的一部分和顶泌汗腺导管。通常，病变为无症状、生长缓慢的结节，可出现在任何有汗腺的区域。多个红色腔隙、肾小球样血管、发夹样血管、花和叶样血管形态、多形性血管形态、小球/腔隙样结构、蛙卵样外观和粉刺样开口已被定义为该疾病的特征性皮肤镜表现。我们报告一例位于不寻常的甲周和甲下部位的小汗腺汗孔瘤，酷似嵌甲。病变的皮肤镜表现与位于甲周区域以外的小汗腺汗孔瘤的表现相符。首次切除活检后观察到复发。第二次手术干预10个月后未复发，甲板几乎完全重新生长。当甲周区域出现生长缓慢、红斑、疼痛、出血性丘疹病变，同时伴有嵌甲和恶性病变的预诊断时，应考虑小汗腺汗孔瘤作为鉴别诊断。
