Contiguous squamous proliferations in syringocystadenoma papilliferum: A retrospective study of 14 cases

Background: Syringocystadenoma papilliferum is a benign adnexal neoplasm. Contiguous squamous proliferation has been rarely described in syringocystadenoma papilliferum. Aims: This study aimed to evaluate the spectrum and pathogenesis of contiguous squamous proliferation in syringocystadenoma papilliferum. Materials and Methods: All cases of syringocystadenoma papilliferum diagnosed over the past 12 years were screened for contiguous squamous proliferation. Cases with associated nevus sebaceous were excluded from the study. Immunohistochemistry for GATA3, CK7, BRAFV600E and p16 was performed. PCR for human papilloma virus, type 16 and 18, was carried out. Results: Of a total of 30 cases, 14 cases showed associated contiguous squamous proliferation which included four cases of verrucous hyperplasia, six cases with papillomatosis, two cases with mild squamous hyperplasia and one case each of Bowen’s disease and squamous cell carcinoma. In the cases with non-neoplastic contiguous squamous proliferations, the squamous component did not express CK7 or GATA3. However, the squamous component of premalignant and malignant lesions expressed CK7 and GATA3 concordant with the adenomatous component. BRAF was positive in adenomatous component in five cases while the contiguous squamous proliferation component was negative for BRAF in all but one case. p16 was negative in both components of all cases and PCR for human papilloma virus was negative in all cases. Limitations: Due to the rarity of disease, the sample size of our study was relatively small with two cases in the 2nd group, that is, syringocystadenoma papilliferum with malignant contiguous squamous proliferation. Detailed molecular studies such as gene sequencing were not performed. Conclusion: Syringocystadenoma papilliferum with contiguous squamous proliferation is underreported, and most commonly displays verrucous hyperplasia. The premalignant and malignant contiguous squamous proliferations likely arise from syringocystadenoma papilliferum while the hyperplastic contiguous squamous proliferations likely arise from the adjacent epidermis. Relationship with high-risk human papilloma virus is unlikely. However, further molecular analysis of larger number of cases is required to establish the pathogenesis.

SYRINGOCYSTADENOMA PAPILLIFERUM OF SCALP – A CASE REPORT OF A RARE CUTANEOUS ADNEXAL NEOPLASM

Syringocystadenoma papilliferum is a rare benign hamartomatous tumor arising from apocrine or eccrine sweat glands with a predilection for head and neck. Here we report a case of a 30 year old female who presented to our opd with a nodule over scalp since birth which turned into a hairless , exophytic pinkish growth with blood tinged discharge slowly over the last 2 years . A punch biopsy of the lesion revealed syringocystadenoma papilliferum. Excision of the lesion is performed and specimen is sent for (hpe) histopathological examination which revealed syringocystadenoma papilliferum with no malignant transformation. Post operative recovery was uneventful and the patient was followed up till 6 months with no history of recurrence.

Syringocystadenoma papilliferum arising within a nevus sebaceous: A case report

@#Syringocystadenoma papilliferum is a rare benign adnexal skin tumor of apocrine or eccrine differentiation. It usually appears at puberty wherein a third of cases arise within a nevus sebaceous. We report a 14 year-old male with an erythematous fleshy plaque on the scalp of 3 years duration that developed from a pre-existing hairless plaque since birth. Histopathology confirmed the above diagnosis.

Syringocystadenocarcinoma Papilliferum: A Case Report and Review of the Literature

Syringocystadenocarcinoma papilliferum (SCACP) is a rare malignant adnexal neoplasm, which is considered as a malignant counterpart of syringocystadenoma papilliferum (SCAP). Clinically, SCACP appears as a nodule, inflammatory plaque, or tumor. The lesion is usually covered with crusts, which are formed by secretion of the apocrine epithelial cells. Histologically, SCACP resembles SCAP, with cystic papillomatous invaginations connected to the skin surface by funnel-shaped structures lined by infundibular epithelium. The stroma of the tumor consists of a dense inflammatory infiltrate of plasma cells and lymphocytes. SCACP differs from SCAP in terms of the architectural and cytological features of the tumor cells, and is characterized by higher nuclear cytoplasmic ratio, nuclear irregularity, coarse chromatin, and increased mitotic activity. However, the immunohistochemical findings of SCACP vary. Since only 49 cases of SCACP have been reported in the English literature, the clinical and histologic characteristics of SCACP have not been fully established. Further studies on the diagnostic criteria for SCACP are warranted. Here, we report a rare case of SCACP and present a review of other relevant literature.

A Case of Linear Syringocystadenoma Papilliferum on the Inguinal Area / 대한피부과학회지

No abstract available.

Syringocystadenoma papilliferum and trichoblastoma arising in the nevus sebaceous

Nevus sebaceous (NS) is a clinically common benign tumor and has a high potential to develop into a great diversity of neoplasms of epidermal and adnexal origins. However, it is a rare phenomenon of the coexistence in a single NS with two or more skin tumors. We report a case of a 58-year-old woman with two kinds of neoplastic proliferation including syringocystadenoma papilliferum and trichoblastoma arising in NS on the scalp.

Syringocystadenoma Papilliferum of the Ankle / 대한피부과학회지

No abstract available.

A case of syringocystadenoma papilliferum of eyelid with literature review.

Syringocystadenoma papilliferum can rarely affect eyelid skin. The lesion is frequently misdiagnosed as basal cell carcinoma or cyst or squamous cell carcinoma. We are presenting a case that was clinically diagnosed as basal cell carcinoma of eyelid but was later histologically diagnosed as syringocystadenoma papilliferum.

Syringocystadenoma papilliferum of eyelid- A deviant case report.

Syringocystadenoma papilliferum, a distinct dermatologic entity, is an exceedingly rare benign skin neoplasm and seems to have arisen from apocrine or eccrine adnexal structures. The diagnosis is clinically suspected and histologically confirmed due to its non distinct clinical findings and varried presentations. Since it usually appears at birth or during puberty and adolescence, it is called as Childhood tumor. Complete surgical excision is the treatment of choice followed by detailed histologic examination, to avoid the risk of maligrant degeneration. Herein, We have reported a rare case of Syringocystadenoma papilliferum of eyelid in an adolescent female.

Development of Six Tumors in a Sebaceus Nevus of Jadassohn: Report of a Case

Nevus sebaceus of Jadassohn is a congenital cutaneous hamartoma comprised of multiple skin structures. It has the potential to develop into variety of neoplasms of various epidermal adnexal origins. While multiple tumors may occasionally arise, it is unusual for more than four tumors to arise simultaneously within a single sebaceus nevus. Here in, we report a case of a 70-year-old woman with six neoplastic proliferations including a syringocystadenoma papilliferum, pigmented trichoblastoma, tubular apocrine adenoma, sebaceoma, tumors of follicular infundibulum and superficial epithelioma with sebaceus differentiation arising in a long standing nevus sebaceus on the scalp. Our case is extraordinary because a single nevus sebaceus contained six neoplastic proliferations with differentiation toward the folliculosebaceous-apocrine unit.

A Case of Syringocystadenoma Papilliferum of the Eyelid

PURPOSE: To report a case of syringocystadenoma papilliferum that presented as an eyelid nodule. CASE SUMMARY: A 37-year-old woman presented with a mass around the punctum in the right lower eyelid margin, which had developed several years earlier and was increasing in size. The mass was a light pinkish nodule consisting of a few smooth-surface papillary lobules. The pathologic findings of the specimen obtained from a shaving biopsy showed a papillary projection which was covered with epithelium and communication with duct-like structures showing glandular configuration in the deep portion of the lesion. EMA-positive cells were found at the invaginated epithelium, implying a glandular epithelial origin. GCDFP-15-positive cells were found in the deep portion of the lesion, implying apocrine differentiation. The findings were compatible with syringocystadenoma papilliferum. CONCLUSIONS: Syringocystadenoma papilliferum should be considered as a differential diagnosis of a solitary eyelid tumor.

Syringocystadenoma Papilliferum of the Back Combined with a Tubular Apocrine Adenoma

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.

Syringocystadenoma Papilliferum in Co-existence with Tubular Apocrine Adenoma on the Calf

Syringocystadenoma papilliferum (SCAP) occurs singly or in association with other tumors. Although it is rare, the association of tubular apocrine adenoma (TAA) with SCAP in the background of nevus sebaceous (NS) on the scalp is well documented. However, the co-existence of these two tumors without background of NS has not been reported on the extremities. We report a case of SCAP associated with TAA on the calf without pre-existing NS in an adult.

A Case of Tubular Apocrine Adenoma with Syringocystadenoma Papilliferum that Developed in a Nevus Sebaceus

Tubular apocrine adenoma (TAA) is a very rare sweat gland tumor. TAA and syringocystadenoma papilliferum (SCAP) rarely develop together in a nevus sebaceus (NS). Herein, we report on a 40-year-old Korean woman with TAA associated with SCAP that developed in a NS located on the scalp.

Siringocistoadenomas papilíferos: descripción de dos casos / Syringocystadenoma papilliferum: report of two cases

El siringocistoadenoma papilífero es un raro tumor anexial benigno de naturaleza ecrina o apocrina; o seade histogénesis incierta. Es un tumor de la niñez y adolescencia con muchos ejemplos descritos en el momento del nacimiento. Se asocia a un nevo sebáceo pre-existente en el 30% de los casos. Su diagnóstico es netamente histológico y el tratamiento quirúrgico es curativo.

Syringocystadenoma papilliferum is a rare benign adnexal of eccrine or apocrine nature; uncertain histogenesis. It is a tumour of childhood or adolescence, with many examples noted at birth. The neoplasmoccurs in association with an organoid naevus such as naevus sebaceous in at least one-third of cases. Itsdiagnosis is purely histological and simple excision is curative.

Three Cases Showing Combined Features of Syringocystadenoma Papilliferum andTubular Apocrine Adenoma Superimposed on Nevus Sebaceus / 대한피부과학회지

Both syringocystadenoma papilliferum and tubular apocrine adenoma are benign skin appendage tumors of apocrine differentiation. They may be isolated and easily discernible, but in some cases, it is difficult to differentiate them into separate entities or diseases with overlapping features. We herein report three cases showing features of both syringocystadenoma papilliferum and tubular apocrine adenoma simultaneously. They presented as a 20-year-old woman with linear verrucous erythematous plaque with grouped papules on the left sideburn area, a 64-year-old man with verrucous plaque on the right temporal scalp, a 48-year-old man with verrucous erythematous patch on the occipital scalp and commonly showed syringocystadenoma and tubular apocrine adenoma. All cases had been present since birth and also showed similar histopathologic features as follows; occasional fetal hair germ-like immature pilosebaceous structures or somewhat hypertrophied sebaceous glands directly connecting to surface epidermis, suggesting the association with nevus sebaceus in a variable degree.

A Case of Nevus Sebaceus, Accompanied by Syringocystadenoma Papilliferum, a Basal Cell Carcinoma-like Tumor, Sebaceous Epithelioma, Apocrine Adenoma and Tumor of Follicular Infundibulum, with Repair by Subgaleal-periosteal Fixation / 대한피부과학회지

Nevus sebaceus is well-known for its potential to develop both benign and malignant neoplasms of epidermal and adnexal origin. We found 5 tumors including syringocystadenoma papilliferum, a basal cell carcinoma-like tumor, sebaceous epithelioma, a tumor of follicular infundibulum and apocrine adenoma within a single nevus sebaceus lesion in a 37-year-old man. This is a rarely reported case of a nevus sebaceus lesion containing a basal carcinoma-like, trichoblastoma-like skin tumor and tumors of follicular infundibulum. The lesion was treated by wide excision and repaired with subgaleal-periosteal fixation which resulted in good wound healing.

Multiple Adnexal Neoplasms Arising in Nevus Sebaceous / 대한피부과학회지

Nevus sebaceous occurs almost on the scalp and face and shows characteristically well demarcated yellowish patch or plaque. With time, benign or malignant skin tumors secondarily may be developed within nevus sebaceous lesion. We herein report a case of nevus sebaceous superimposed with 4 rare types of tumors; sebaceous epithelioma, syringocystadenoma papilliferum, tubular apocrine adenoma, and trichoblastoma.

A Case of Syringocystadenoma Papilliferum, Sebaceous Epithelioma, and Basal Cell Carcinoma Arising from Nevus Sebaceus / 대한피부과학회지

Nevus sebaceus is a congenital cutaneous hamartoma which has a potential to develop both benign and malignant neoplasm in late life. The most common benign tumor developed within the nevus is syringocystadenoma papilliferum and the most common malignant tumor basal cell epithelioma. Although two different tumors often develop simultaneously on the lesion, it is rare to see more than two different tumors developing on the lesion of nevus sebaceus. In Korean literatures only three such cases were reported. We report an additional case of nevus sebaceus developing three different tumors, syringocystadenoma papilliferum, sebaceous epithelioma, and basal cell carcinoma, in a 67-year-old female patient.

Multiple Adnexal Neoplasms Arising from Nevus Sebaceous / 대한피부과학회지

Nevus sebaceous is a tumor of primary epithelial germ cells that is generally first noticed at birth. Clinically, there is a yellowish waxy plaque with overlying alopecia on the scalp. Less commonly, it can be seen on the face, trunk, and extremities. Syringocystadenoma papilliferum is the most common benign growth from nevus sebaceous, whereas basal cell carcinoma is the most frequent malignancy. The proportion of the malignant tumors occurring on nevus sebaceous is highly variable according to the published series, and there are controversies on the nature of these neoplasms. We experienced a rare case of nevus sebaceous, superimposed of 5 multiple type tumors at the comparatively young age: syringocystadenoma papilliferum, basal cell carcinoma, nevocellular nevus, sebaceous adenoma, and syringoma. We treated the patient with total excision, and followed up during 1 year. The patient showed no recurrence.