LETTER TO THE EDITOR
| [Download PDF]
|Year : 2009 | Volume
| Issue : 3 | Page : 318-319
Giant linear syringocystadenoma papilliferum on scalp
Reza Yaghoobi1, Sara Hashem Zadeh1, Abdoul Hassan Talaie Zadeh2,
1 Department of Dermatology, Jondi Shapour University of Medical Sciences, Ahwaz, Iran
2 Department of Surgery, Jondi Shapour University of Medical Sciences, Ahwaz, Iran
Department of Dermatology, Emam Khomeini Hospital, 61335, Ahwaz, P.O.Box: 61335 - 4156
|How to cite this article:|
Yaghoobi R, Zadeh SH, Zadeh AT. Giant linear syringocystadenoma papilliferum on scalp.Indian J Dermatol Venereol Leprol 2009;75:318-319
|How to cite this URL:|
Yaghoobi R, Zadeh SH, Zadeh AT. Giant linear syringocystadenoma papilliferum on scalp. Indian J Dermatol Venereol Leprol [serial online] 2009 [cited 2019 Dec 6 ];75:318-319
Available from: http://www.ijdvl.com/text.asp?2009/75/3/318/51265
A 20-year-old woman, mentally retarded, was brought to the clinic of dermatology with a lesion on left-sided occipital part of the scalp for about 1 year. The lesion was pruritic, bleeding frequently, and increasing in size continuously.
An examination of her scalp showed a linear lesion, highly elevated, moist, fetid, vegetated and pinkish, measuring 8 × 3 × 2cm in diameter, on the left side of the occiput with an extension to the nape of her neck [Figure 1]. A tender lymph node was found in the posterolateral cervical chain. All her routine laboratory tests were within normal limit, with the exception of hypochromic, microcytic anemia. An incisional skin biopsy, with differential diagnoses of organoid nevus, syringocystadenoma papilliferum, leishmaniasis and warty tuberculosis was performed. Histopathological examination revealed a cystic structure in the epidermis containing numerous papillary projections extending into the lumen of cystic structure. These papillary projections were lined by granular epithelium, consisting of two rows of cells. With this finding, the diagnosis of syringocystadenoma papilliferum (SCAP) was made [Figure 2].
The patient was referred to the general surgeon for total excision of the tumor. Histopathological examination of the total lesion reconfirmed the diagnosis of SCAP, without any malignant transformation and any association with sebaceous nevus. After a 3-month follow-up, no evidence of recurrence was seen.
SCAP is a benign adnexal tumor originating from sweat glands.  The lesions evolve either de novo or, less frequently, from a sebaceous nevus.  SCAP is predominantly a childhood tumor. In about half of those affected, it is present at birth, and in a further 15%-30%, the tumor develops before puberty.  SCAP has a varied clinical appearance, usually presents as a hairless, single nodule on the scalp, but a small papular form is also known. , In addition to the head and neck, the involvement of other anatomic locations are well documented but uncommon. , The lesions of SCAP measure between 1 and 3 cm in diameter  and all published cases of nodular SCAP have to date measured  A vast majority of SCAPs are solitary lesions, and linear arrangement of these lesions is particularly rare.  In 2001, Patterson et al ., described that there had been only eight previous cases of linear SCAP. Five of these most recently reported cases occurred on the chest, left arm, neck and right thigh.  In contrast to the diverse clinical appearances, the histology of SCAP is uniform and characteristic, offering a reliable tool for the diagnosis. 
Four characteristic features in the present case encouraged us to report it. These include linear arrangement, giant size, de novo development and no evidence of malignant transformation, despite large dimensions of the tumor.
|1||Toshiyuki Y, Akira M. Syringocystadenoma papilliferum arising on the thigh without connection to the overling epidermis. Am J Dermatopathol 2008;30:84-5.|
|2||Karg E, Korom I, Varga E, Ban G, Turi S. Congenital syringocystadenoma papilliferum. Pediatr Dermatol 2008;25:132-3.|
|3||Laxmisha C, Thappa DM, Mishra MM, Verma SK. Linear syringocystadenoma papilliferum of the scalp. J Eur Acad Dermatol Venereol 2007;21:275-6.|
|4||Kaehler KC, Lange-asschenfeldt B, Proksh E, Hauschild A. Giant naevoid syringocystadenoma papilliferum. Acta Derm Venereol 2005;85:453-4.|
|5||Patterson JW, Straka BF, Wick MR. Linear syringocystadenoma papilliferum of the thigh. J Am Acad Dermatol 2001;45:139-41.|