Résumé
Eccrine porocarcinoma (EP) is a rare malignant tumor arising from the intraepidermal eccrine duct. The tumor cells frequently contain glycogen, but prominent clear cell changes in EP are rarely reported. A 78-year-old woman presented with a slightly pruritic, erythematous, verrucous plaque on her left thigh. Histopathological examination revealed intraepidermal tumor cell nests composed of small basaloid cells and duct-like structures lined by periodic acid-Schiff (PAS)-positive cuticles. Besides the typical findings of EP, clear cell changes were predominantly observed in the tumor cell aggregations. Herein we report a case of the clear cell variant of EP rarely reported in previous literature.
Sujets)
Sujet âgé , Femelle , Humains , Agrégation cellulaire , Porocarcinome eccrine , Glycogène , CuisseRésumé
Malignant eccrine poroma is a rare skin appendageal tumor arising from the intraepidermal ductal portion of the eccrine sweat gland. It may develop either spontaneously or from a long-standing eccrine poroma. It usually affects the aged and is located most commonly on lower extremities. We report a case of malignant eccrine poroma occurring on the suprapubic area of a 75-year-old Korean man. He underwent wide excision and flap coverage.
Sujets)
Sujet âgé , Humains , Porocarcinome eccrine , Membre inférieur , Porome , Peau , Glandes sudoriparesRésumé
Malignant eccrine poroma is a rare skin appendage tumor, originating from the intraepidermal eccrine duct. It develops either spontaneously or in an eccrine poroma of long-standing duration. It usually affects older people and is located most commonly on the lower extremities. We report a case of an 84 year old woman with a malignant eccrine poroma on the left upper eyelid, which resembled a cutaneous horn. She presented with a solitary, tender, firm, 0.4x0.4x0.9 cm-sized, silvery-white colored papule on the left upper eyelid. She was treated with surgical excision and to date shows no recurrence.
Sujets)
Sujet âgé de 80 ans ou plus , Animaux , Femelle , Humains , Porocarcinome eccrine , Paupières , Cornes , Membre inférieur , Porome , Récidive , PeauRésumé
Malignant eccrine poroma is a rare malignant tumor that arises from the intraepithelial ductal portion of the eccrine sweat gland. It may be developed either spontaneously or from a preexisting benign eccrine poroma. We report a case of malignant eccrine poroma on right lower abdomen in a 78-years-old female, which has been present for 1 year. In our case the tumor demonstrated without local invasion and distant metastasis, and was successfully removed by surgery.
Sujets)
Femelle , Humains , Abdomen , Porocarcinome eccrine , Métastase tumorale , Porome , Glandes sudoriparesRésumé
Malignant eccrine poroma is a rare malignant cutaneous tumor arising from intraepithelial eccrine duct and it may develop either spontaneously or from a long standing eccrine poroma. We report a case of malignant eccrine poroma on the antihelix of the right ear in a 37-year-old female, previously diagnosed as a benign eccrine poroma with shave biopsy specimens. Histological findings are well-defined tumor cell nests disseminated in dermis. Each cell has a large, hyperchromatic atypical nuclus. The atypical mitoses, dyskeratoses, intracytoplasmic vacuolations and duct-like structures are observed. She was treated with wide surgical excision and local skin flaps.
Sujets)
Adulte , Femelle , Humains , Biopsie , Derme , Oreille , Porocarcinome eccrine , Mitose , Porome , PeauRésumé
Malinant eccrine poroma is a rare malignant tumor that arises from the intraepithelial ductal portion of the eccrine sweat gland, that may develop either spontaneously or from a preexisting benign eccrine poroma. It usually affects elderly patients in both sexes and is usually found on the lower extremities and the head. We described 71-year-old female with a malignant eccrine poroma in the scalp developing from benign eccrine poroma, which has been present for 5 years. The local recurrence and regional metastatic rate are both approximately 20%. Distant metastasis occurs in 12% of cases. In our case the tumor demonstrated without local invasion and distant metastasis, and was successfully removed by surgery.
Sujets)
Sujet âgé , Femelle , Humains , Porocarcinome eccrine , Tête , Membre inférieur , Métastase tumorale , Porome , Récidive , Cuir chevelu , Glandes sudoriparesRésumé
Malignant eccrine poroma, or eccrine porocarcinoma, is a rare malignant cutaneous appendageal tumor arising from the intraepidermal eccrine sweat duct(acrosyringium), and usually develops ia an eccrine poroma of long-standing. We report a case of malignant eccrine poroma on the left buttock in a 72 year-old female. She was presented with a slightly pruritic, well-defined, reddish, firm, 4.5 x 4.5 x 0.7cm sized, protruding, ulcerated tumor. Histopathological examination revealed well-defined tumor cell nests in the epidermis and dermis. The tumor nests consisted of areas of eccrine poroma cells with benign appearance adjoining areas of anaplastic cells. Duct-like structures were observed within the tumor nests and showed a PAS-positive, diastase-resistant reaction. On immunohistochemical staining, the tumor cells were, positive for EMA, and most of tumor cells were negative but the duct-like structures were positive for CEA. She was treated with surgical excision. During the three year follow up period after excision, there was no recurrence.
Sujets)
Sujet âgé , Femelle , Humains , Fesses , Derme , Porocarcinome eccrine , Épiderme , Études de suivi , Porome , Récidive , Sueur , UlcèreRésumé
Eccrine porocarcinoma is a rare tumor of the skin. A case report of an eccrine porocarcinoma metastasizing to epidural space of spinal cord and inguinal area with a nine year follow up is described. The patient had a nodular growth of the abdomen with both inguinal lymphadenopathy three years before its first excision. After a follow up of nine years, he complained a weakness of lower extremities and back pain. Extradural mass of 10th thoracic vertebra and left inguinal mass were found. Subsequently, the masses histologically identical to the skin tumor were found.