Clear cell hidradenoma, generally as an eccrine sweat gland origin, is a fairly uncommon tumor and occurs as a slowly growing, usually solitary nodule. The histological patterns vary from one tumor to another and in different parts of the same tumor. We experienced three cases of clear cell hidradenoma which were diagnosed by the histopathologic examination of the tumor mass removed by surgical excision. Clinical and histopathologic features of each case were reviewed and compared.
Acrospiroma* ; Sweat Glands

Giant vascular eccrine spiradenoma is a rare benign tumor of the sweat gland, which differs from common eccrine spiradenoma in both its larger size and marked vascularity. It is emphasized that this rare type of spiradenoma is commonly misdiagnosed as an angiomatous lesion or a malignant tumor due to its hemorrhagic and ulcerative features. We report a rare case of giant vascular ecrine spiradenoma that was mistaken as a malignant tumor due to hemorrhaging and ulceration.
Sweat Glands ; Ulcer

Eccrine spiradenoma is a benign tumor which probably originats in the coil of the eccrine sweat gland. It usually presents as a solitary, slowly-growing, sometimes painful, reddish-brown, and intradermal or deeply subcutaneous nodule on the head and trunk. More than 97% of eccrine spiradenoma appear as solitary lesions. Occasionally, it may appear as multiple lesions, however they are rarely arranged in a linear or zosteriform distribution. A search of literature revealed only 17 internationally reported cases of linear or zosteriform eccrine spiradenomas, including 4 Korean cases. We herein present an unusual case of eccrine spiradenoma, showing multiple, large nodules with zosteriform distribution.
Head ; Sweat Glands

Aggressive digital papillary adenoma is a rare neoplasm of eccrine sweat gland origin. We report a case of aggressive digital papillary adenoma with literature reviews. Pathogenesis of this tumor is unclear but, according to his past history, possible induction by defoliants could not be ruled out. Several immunohistochemical studies were done to confirm tumoral origin and to evaluate histological potential of malignancy.
Adenoma* ; Sweat Glands

Aggressive digital papillary adenoma is a rare neoplasm of eccrine sweat gland origin. We report a case of aggressive digital papillary adenoma of the fifth finger, together with a literature review.
Adenoma ; Fingers ; Sweat Glands

Giant vascular eccrine spiradenomas (GVESs) are a rare variant of the eccrine spiradenoma that develops from the sweat gland. It is different from the eccrine spiradenoma in its larger size and greater degree of vascularity. Bleeding and/or ulceration are common clinical features of this tumor, and are the reason why it is often clinically confused with a vascular or malignant tumor. Here, a rare case of GVES without bleeding or ulceration is reported.
Hemorrhage ; Sweat Gland Neoplasms ; Sweat Glands ; Ulcer

Eccrine porocarcinoma is a very rare, locally-aggressive, potentially fatal, malignant cutaneous neoplasm that arises from the intraepithelial ductal portion of the eccrine sweat gland. Eccrine porocarcinoma may develop either spontaneously or from a longstanding benign eccrine poroma. Herein, we describe two cases of eccrine porocarcinoma and review the related literature.
Eccrine Porocarcinoma* ; Poroma ; Sweat Glands

Eccrine spiradenoma is a txnign, painful tumor of the skin, which probably originates in the coil of the eccrine sweat glands and presents a characteristic clinical and pa.hological picture. However recently, the weakness and inconsistency of the enzymes histochemican, actions and electron microscopic findings, and the presence of numerous undifferentiated and indetirn, inate cells suggest a rather low degree of differentiation. We present herein four cases of eccrine spiradenoma which show livrse histopat.hologic characteristics including typical rosette-like structure, ductal structure, vacuar structure and mixed type, respectively. This report may support the premise that eccrine spiridinoma is defived not only from the eccrine duct but also from pluripotential stem cells.
Skin ; Stem Cells ; Sweat Glands

Syringocystadenoma papilliferum (SCAP) and tubular apocrine adenoma (TAA) are rare benign sweat gland tumors. SCAP and TAA may have a histopathologic overlap, but few cases of a SCAP combined with a TAA have been reported. Herein we describe an unusual case of a SCAP co-existing with a TAA located on the back of a 12-year-old girl.
Adenoma ; Child ; Humans ; Sweat Glands

Bullae and sweat gland necrosis is an entity previously reported to occur in comatose patients. Since its first description in comatose patients after carbon monoxide intoxication, similar lesions have also been reported in comatose patients after overdose with several drugs and in immobilized non-comatose patients. To our knowledge, there have been only three occurrences of bullae and sweat gland necrosis after alcohol intake in the Korean dermatologic literature. These cases were never described, but only summarized in a table of an original article. Herein, we more fully describe a case of bullae and sweat gland necrosis in a non-comatose patient after alcohol intake. The case demonstrates conclusively that bullae and sweat gland necrosis can occur not only in a comatose patient but also in a non-comatose patient.
Blister ; Carbon Monoxide ; Coma ; Humans ; Necrosis ; Sweat ; Sweat Glands