Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0027627 (metastases)
 103,950 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Eccrine porocarcinoma (EP) is a rare malignant tumor arising from the intraepidermal sweat duct. The lesions have a varied clinical appearance and usually are asymptomatic. In reported cases, metastasis is rare but can be devastating when it occurs. We describe an unusual case of EP in a patient who presented with metastatic disease. New-onset exquisite pain prompted his evaluation. This case and review of metastatic disease is presented to raise awareness of this tumor, its varied clinical presentations, differential diagnosis, and management.
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PMID:Metastatic eccrine porocarcinoma. 2408 78

Eccrine porocarcinoma (EPC) is a rare tumor. It develops from the intraepidermal ductal portion of the eccrine sweat gland. Metastatic disease is rare. We report a new case of metastatic eccrine porocarcinoma with a successful management and a good response to docetaxel. A 54-year-old man was admitted with a mass in the breast. Biopsy specimen found carcinomatous tumor proliferation with large anastomosing ducts. Cellular atypia were noted, with eosinophilic cytoplasm and round to oval nuclei. The tumor showed positive immunoreactivity for ACE and negative to anti-PS-100. Resection was performed. One year later, he presented with local and metastatic recurrences. The patient had received 3 cycles of cisplatin and 5-fluorouracil; he progressed with increase in mass size and number of lung lesions. He has been undergoing three cycles of docetaxel with complete response in the lung and regression of the breast mass. The mass was excised. Porocarcinoma is a very rare entity and poorly understood. In the metastatic phase, it has modest or no sensitivity to anticancer treatment. Docetaxel should be considered in the metastatic eccrine porocarcinoma.
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PMID:Successful management of metastatic eccrine porocarcinoma. 2428 49

Eccrine porocarcinoma is an extremely rare malignancy of the eccrine sweat gland. It is believed to arise from the intra-epithelial portion of eccrine sweat glands. It can either arise de novo or it can develop in a long standing eccrine poroma. It often occurs in the elderly, with the mean age of occurrence being 67 years. The tumour favours extremities, particularly the legs and feet. The propensity to form multiple cutaneous metastases is an unusual feature of eccrine porocarcinoma. It is also associated with visceral metastasis, resulting in death. An early diagnosis and prompt treatment are thus essential, owing to the aggressive behaviour of the tumour. Keeping in view its rarity of occurrence, we are hereby presenting a case of eccrine porocarcinoma which occurred in a 55-year-old female.
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PMID:Eccrine porocarcinoma: a case report. 2455 93

BACKGROUND Eccrine porocarcinoma, or malignant eccrine poroma, is a rare primary skin tumor that develops in the sixth and seventh decades of life, and can present as a painless and solitary nodule. Histopathology is required to confirm the diagnosis. A rare case is presented of metastatic eccrine porocarcinoma, occurring four years after surgical excision of the primary scalp tumor, and includes a review of the literature. CASE REPORT A 67-year-old man initially presented with a scalp lesion that was non-painful, exophytic, and pigmented. Following complete excision, histopathology confirmed the diagnosis of eccrine porocarcinoma with clear resection margins. Four years later, he presented with discrete erythematous patches and plaques, in a zosteriform distribution, in the skin of the right neck, shoulder, and chest. A biopsy and histopathology of the skin rash confirmed metastatic eccrine porocarcinoma. A positron-emission tomography-computed tomography (PET-CT) scan identified areas of hypermetabolic activity, with a standardized uptake value (SUV) of 12, and an infiltrating soft tissue tumor in the right suboccipital region. Surgical resection of the suboccipital mass, followed by histopathology, confirmed metastatic eccrine porocarcinoma. During a postoperative ear, nose, and throat (ENT) examination, he was found to have metastases in the right ear canal. The patient received five cycles of chemotherapy, but later developed renal failure and eventually chose palliative care. CONCLUSIONS A rash-like presentation of skin metastasis to the trunk and metastasis to the ear from a primary eccrine porocarcinoma is rare. Early diagnosis and adequate surgical resection are recommended to reduce patient mortality.
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PMID:Recurrent Metastatic Eccrine Porocarcinoma: A Case Report and Review of the Literature. 3073 4

Eccrine porocarcinoma (EPC) is a rare malignant neoplasm which originates from the intraepidermal portion of eccrine sweat glands or acrosyringium. Here, we report a unique case of cutaneous metastases of EPC presenting with an erosive plaque on the left thumb and multiple nodules on left forearm. The histopathological examination of the wrist lesion revealed islands of basaloid tumor cells with eosinophilic cytoplasm, downward infiltrating growths, ductal differentiation, and intracytoplasmic lumen formations and focally connected to the epidermis. Acrosyringeal differentiation was confirmed by positive immunohistochemical staining using antibodies to carcinoembryonic antigen (CEA) and epithelial membrane antigen (EMA) in some of porocarcinoma cells. Lymphatic embolization was shown by immunostaining of podoplanin. To the best of our knowledge, this is the first reported EPC case with a primary lesion on the left thumb and zosteriform growth pattern of lymphangitic metastases on left forearm. Our case highlights the diagnostic challenges and reveals lymphangitic metastasis mode of EPC.
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PMID:Zosteriform Lymphangitic Metastases of Eccrine Porocarcinoma. 3154 39

BACKGROUND Eccrine porocarcinoma (EPC) was first described in 1963 as an epidermotropic eccrine carcinoma. Fifty years later, its etiology remains poorly understood. The infrequent nature of this disease merits further inquiry into its etiology, presentation, and standards of management. Furthermore, the propensity for metastasis, which may be as high as 31% on presentation, increases the importance of investigating this rare disease. CASE REPORT The patient was a 63-year-old mechanic who presented with the lesion as a chronic wound following a chemical exposure. The lesion involved the ulnar aspect of his right palm and had concern for extension to the underlying tendons. He underwent a wide excision extending from the wrist to the proximal interphalangeal joint, preserving the ulnar neurovascular bundle. The hand was reconstructed with an anterolateral thigh fascia perforator flap and a skin graft. He had an excellent functional and cosmetic recovery. Unfortunately, he developed metastases to the lymph nodes, necessitating an axillary lymphadenectomy followed by adjuvant chemoradiation using concurrent cisplatin and docetaxel with radiation for 6 weeks. Follow-up at 18 months found no recurrence. CONCLUSIONS Cases of EPC presenting in the fingers have been managed with amputation of the involved phalanges; however, in addition to obtaining complete excision with negative margins, surgeons who deal with tumors of the hand must also consider the goals of limb preservation, functional preservation, and functional reconstruction. Options for reconstruction following excision include primary closure, dermal regeneration templates, skin grafts, flaps, and free-tissue transfer, depending on what tissue types are needed.
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PMID:A Case Report of Malignant Eccrine Porocarcinoma Involving the Palm Requiring Surgical Excision and Free Flap Reconstruction. 3324 13


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