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Copyright © 2005 by Thieme Medical Publishers, Inc., 333 Seventh Avenue, New York, NY 10001, USA. Aggressive Syringomatous Carcinoma of the Orbit 1Department of Otolaryngology-Head and Neck Surgery, Kobe University Hospital, Kobe, Japan 2Department of Neurosurgery, Kobe University Hospital, Kobe, Japan 3Department of Plastic Surgery, Kobe University Hospital, Kobe, Japan 4Department of Ophthalmology, Kobe University Hospital, Kobe, Japan 5Department of Pathology, Kobe University Hospital, Kobe, Japan 6Department of Otolaryngology, Kohnan General Hospital, Kobe, Japan Ken-ichi Nibu M.D., Ph.D. Department of Otolaryngology-Head and Neck Surgery, Graduate School of Medicine, Kobe University, Kusunoki-cho 7-5-1, Chuo-ku, Kobe 650-0017, Japan, Email: nibu/at/med.kobe-u.ac.jp ABSTRACT A 68-year-old woman with an unusual tumor involving the right orbit presented with painful exophthalmos of the right eye. Excision biopsy of her right eyelid was performed. The specimen showed ductal differentiation with comma-like extensions identical to syringoma. Cellular atypia, an invasive growth pattern, and remarkable perineural invasion led to the diagnosis of syringomatous carcinoma. Magnetic resonance imaging showed that the tumor exhibited maxillary involvement, invading the supraorbital fissure and bone of the middle skull base. The patient underwent craniofacial resection and has been alive with no sign of recurrence for 2 years. This case suggests that wide excision of these tumors with a clear surgical margin using skull base surgical techniques may offer a good prognosis. Keywords: Syringomatous carcinoma, eccrine sweat glands tumor, orbital tumor, skull base surgery Syringomatous carcinomas are rare tumors derived from eccrine sweat glands. They were first described by Goldstein et al1 in 1982 as “microcystic adnexal carcinoma.” These tumors most frequently occur on the scalp2,3,4 and face5,6,7; occasionally they involve the periorbital area (Table 1).5,8,9,10,11,12,13,14,15,16,17 We describe one case with a syringomatous carcinoma of the orbit that demonstrates the locally aggressive nature of these tumors.
CASE REPORT In February 2003, a 68-year-old woman sought treatment after experiencing a painful lesion in her right orbit for 3 months. Her physical examination revealed exophthalmos of the right eye. Lymphadenopathy was not observed in the neck. Magnetic resonance imaging showed a tumor with maxillary involvement and invading the supraorbital fissure (Fig. 1
The patient underwent craniofacial resection and reconstruction using a rectus abdominis musculocutaneous free flap. Briefly, after a semicoronal skin incision was made, the zygomatic arch and coronoid process were removed (Fig. 2
The tumor, which measured by 3 × 3 × 2 cm, showed ductal differentiation with comma-like extensions identical to syringoma (Fig. 6
The patient's postoperative course was uneventful. She has been followed for 2 years at our outpatient clinic with no signs of a recurrence. DISCUSSION Syringomatous carcinomas have many synonyms such as carcinomas with eccrine differentiation, sclerosing sweat duct syringomatous carcinomas, syringoid eccrine carcinomas, microcystic adnexal carcinomas, basal cell tumors with eccrine differentiation, eccrine epitheliomas, sweat gland carcinomas with syringomatous features, and malignant syringomas.1,2,3,5,8 These carcinomas are now thought to share the same neoplastic process and should be termed “syringomatous carcinomas.” This term has been suggested by Abenoza and Ackerman7 to avoid complex classifications. Based on their proposal, syringomatous carcinomas can be classified into three groups: well differentiated, moderately differentiated, and poorly differentiated. The well-differentiated form is found more frequently than the other two forms. Histopathologically, syringomatous carcinomas are characterized by (1) cords and nests of cytologically uniform keratinocytes, (2) keratotic and cyst-like structures, (3) variable ductal differentiation, (4) sclerotic collagenous stroma, (5) infiltration of subcutaneous tissue, and (6) perineural invasion.5 Syringomatous carcinomas are thought to occur in the middle-aged and elderly and to show a predilection for the scalp2,3,4 and face.5,6,7 The gender distribution is about equal. Many patients are aware of their neoplasm for many years because most syringomatous carcinomas are indolent and grow slowly. Surgical excision is the most reliable method of eradicating syringomatous carcinomas, as is the case with other eccrine sweat gland carcinomas. The rate of tumor recurrence is high reflecting extensive perineural invasion, but regional or distant metastases are rare.5,9 Radiotherapy has been reported as insufficient to treat this carcinoma.17,18,19 In two cases treated with radiotherapy for primary microcystic adnexal carcinoma, the tumor recurred within 3 years.18,19 One patient who underwent postoperative radiotherapy and chemotherapy consisting of tamoxifen also had recurrence despite the intensive treatment.20 To date, 14 cases of syringomatous carcinoma arising in the eyelid have been reported.5,8,9,10,11,12,13,14,15,16,17 In 5 of these cases, the orbital content was involved. All relapsed after surgical treatment. These outcomes suggest that wide surgical excision using skull base surgical techniques, as in our case, should be considered for the treatment of syringomatous carcinomas arising in the eyelid. REFERENCES
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Cancer. 1982 Aug 1; 50(3):566-72.
[Cancer. 1982]Am J Dermatopathol. 1987 Jun; 9(3):225-31.
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[Am J Surg Pathol. 1985]Cancer. 1982 Aug 1; 50(3):566-72.
[Cancer. 1982]Am J Dermatopathol. 1987 Jun; 9(3):225-31.
[Am J Dermatopathol. 1987]Am J Dermatopathol. 1990 Dec; 12(6):552-61.
[Am J Dermatopathol. 1990]Am J Surg Pathol. 1985 Jun; 9(6):422-33.
[Am J Surg Pathol. 1985]Ophthalmology. 1984 Aug; 91(8):987-90.
[Ophthalmology. 1984]Am J Surg Pathol. 1985 Jun; 9(6):422-33.
[Am J Surg Pathol. 1985]Am J Dermatopathol. 1987 Jun; 9(3):225-31.
[Am J Dermatopathol. 1987]Am J Dermatopathol. 1990 Dec; 12(6):552-61.
[Am J Dermatopathol. 1990]Am J Dermatopathol. 1993 Oct; 15(5):503-5.
[Am J Dermatopathol. 1993]Am J Surg Pathol. 1985 Jun; 9(6):422-33.
[Am J Surg Pathol. 1985]Am J Dermatopathol. 1993 Dec; 15(6):568-71.
[Am J Dermatopathol. 1993]Plast Reconstr Surg. 1989 Dec; 84(6):970-5.
[Plast Reconstr Surg. 1989]Ann Otol Rhinol Laryngol. 1991 Jul; 100(7):601-3.
[Ann Otol Rhinol Laryngol. 1991]Ann Surg. 1971 Feb; 173(2):270-4.
[Ann Surg. 1971]Ophthalmology. 2002 Mar; 109(3):553-9.
[Ophthalmology. 2002]Am J Surg Pathol. 1985 Jun; 9(6):422-33.
[Am J Surg Pathol. 1985]Ophthalmology. 1984 Aug; 91(8):987-90.
[Ophthalmology. 1984]Br J Ophthalmol. 1997 Aug; 81(8):668-72.
[Br J Ophthalmol. 1997]Arch Ophthalmol. 1980 Dec; 98(12):2210-4.
[Arch Ophthalmol. 1980]Cancer. 1975 Sep; 36(3):1034-41.
[Cancer. 1975]