Sebaceous carcinoma of the breast predominantly characterized by intraductal growth: a case report

Advancing Cancer Research: Current Knowledge on Cutaneous Neoplasia

Skin cancers require a multidisciplinary approach. The updated guidelines introduce new insights into the management of these diseases. Melanoma (MM), the third most common skin cancer, a malignant melanocytic tumor, which is classified into four major histological subtypes, continues to have the potential to be a lethal disease. The mortality-incidence ratio is higher in Eastern European countries compared to Western European countries, which shows the need for better prevention and early detection in Eastern European countries. Basal cell carcinoma (BCC) and squamous cell carcinoma (cSCC) remain the top two skin cancers, and their incidence continues to grow. The gold standard in establishing the diagnosis and establishing the histopathological subtype in BCC and SCC is a skin biopsy. Sebaceous carcinoma (SeC) is an uncommon and potentially aggressive cutaneous malignancy showing sebaceous differentiation. It accounts for 0.7% of skin cancers and 3-6.7% of cancer-related deaths. Due to the rapid extension to the regional lymph nodes, SeC requires early treatment. The main treatment for sebaceous carcinoma is surgical treatment, including Mohs micrographic surgery, which has the advantage of complete margin evaluation and low recurrence rates. Primary cutaneous lymphomas (PCLs) are a heterogeneous group of lymphoproliferative diseases, with no evidence of extracutaneous determination at the moment of the diagnosis. PCLs have usually a very different evolution, prognosis, and treatment compared to the lymphomas that may secondarily involve the skin. The aim of our review is to summarize the important changes in the approach to treating melanoma, non-melanoma skin, cutaneous T and B cell lymphomas, and other types of skin cancers. For all skin cancers, optimal patient management requires a multidisciplinary approach including dermatology, medical oncology, and radiation oncology.

Sebaceous carcinoma of the vulva treated with sentinel lymph node biopsy: a case report and literature review

Sebaceous carcinoma (SC) is a rare and aggressive cutaneous malignancy. It often occurs on the eyelid, where it is called periocular SC, while extraocular SC mainly occurs on the head and heck. Extraocular vulvar SC is extremely rare; only nine cases have been described in the literature, and the optimal treatment strategy is unknown. We herein report a case of vulvar SC that was successfully treated with local excision in combination with sentinel lymph node biopsy (SNB). A 66-year-old female presented with vulvar discomfort. An 8 mm ulcerated mass was palpable in her left labia minora. Skin biopsy suggested SC. Imaging showed no swelling of the pelvic and inguinal lymph nodes and no metastasis. Sentinel lymph node scintigraphy using technetium-99 m showed three sentinel lymph nodes. The patient underwent local excision with SNB; intraoperative frozen-section examination revealed no nodal metastasis, and no further inguinal lymphadenectomy was performed. The final diagnosis was SC of the vulva, FIGO stage IB (pT1bN0M0). At the 14-month follow-up, she remained asymptomatic and had no signs of recurrence. The scientific rationale for SNB in extraocular SC has not yet been established, although SNB can be considered for periocular SC. However, considering the insufficient data on the management of vulvar SC and the aggressive nature of both periocular and extraocular SCs, SNB can be a reasonable and useful method for avoiding inadequate treatment and reducing the complications caused by unnecessary inguinal lymphadenectomy.

Special type breast carcinoma: Sebaceous carcinoma of the breast; A case report and review of literature

Sebaceous carcinoma of the breast is an extremely rare tumor. To the best of our knowledge only 15 cases have been reported in literature. Herein, we report a case of sebaceous carcinoma of the breast and describe the histopathologic features of sebaceous carcinoma of the breast in an elderly female.

Sebaceous Carcinoma of the Breast: Fact or Fiction? A Case Report and a Review of the Literature

Introduction. Previously considered an exceedingly rare entity, sebaceous carcinoma of the breast is now regarded in the World Health Organization 2019 classification as a "special histopathological pattern" of invasive breast carcinoma of no special type. Case Description. In this article, we report the case of a fine needle aspiration cytology and the histopathological features of a breast carcinoma with clear-cut morphological features suggesting sebaceous differentiation, but showing no positive staining with the anti-adipophilin antibody. Conclusions. A morphologically clear-cut sebaceous differentiation is not invariably associated with adipophilin positivity; moreover, in breast carcinoma, adipophilin positivity does not automatically imply sebaceous differentiation. At present, immunomorphological evidence for the recognition of sebaceous carcinoma as a "special type" breast carcinoma subtype is too weak.