Infiltrating Basal Cell Carcinoma Laura S. Gilmore, MD Department of Ophthalmology October 8, 2004 Discussant: Kenn Freedman, MD Case Presentation • CC: growth on right side of nose • HPI: 81 yo HF who first noted growth on right side of nose “last December”, progressively growing. • PMH: arthritis • SH: ½ ppd smoker X 25 years • ROS: denies F/C, significant weight loss • FH: non-contributory Physical Exam • • • • General: AAO, VSS and good VA: 20/80 OD, 20/50 OS Pupils: 3mm OU, no APD External: extensive ulcerative lesion from bridge of nose to RLL and R cheek, with almost complete destruction of RLL and nearly complete ptosis of RUL • IOP, CVF, DFE normal OS, unobtainable OD Differential Diagnosis • • • • Malignant melanoma Squamous cell carcinoma Basal cell carcinoma, infiltrative Infectious Basics of BCC • Background – Most common cutaneous malignancy (~8090%) – Typically slow-growing, rarely metastasizes – Sun-exposed skin, mostly face and scalp, esp nose, cheek, and periorbital regions (~80%) • Frequency – 900,000 Dx in US/year – estimated lifetime risk of 33-39% for men and 23-28% for women • Sex – Men 2X over women Basics of BCC • Mortality/Morbidity – <0.1% metastasize – Very low mortality – Significant morbidity with direct invasion of adjacent tissues, especially when on face or near an eye • Age – Likelihood increases with age – Rare in <40 yo • Race – Most often in light-skinned, rare in darkskinned races Variants of Basal Cell Carcinoma • Superficial • Nodular • Micronodular • Infiltrating (5%) • Sclerosing/ morpheaform (5%) • Metatypical • Infundibulocystic • • • • • Nodulocystic Adenoid Clear cell Follicular Sebaceous • Perineurally invasive Perineural Invasion • May be seen in 3% of pts with infiltrating and morpheaform types – Most often infiltrating type, which has highest rate of local recurrence • Requires CT scan for full work-up • Causes? inherently aggressive behavior vs inadequate early management? Treatment Options • Electrodessication and curettage • Curettage alone • Surgical excision • Mohs micrographically controlled surgery • Cryosurgery • Ionizing radiation • Surgical excision plus radiation • Exenteration • • • • Factors Considered in Treatment Planning Pt preference to keep eye Pt age Surgical excision-considered definitive tx “Careful frozen section controlled excision of periocular BCCs yields cure rates comparable to Mohs micrographic surgery at 5-year follow-up” – 5 year recurrence of 2.2% in one study – Wong, et al. “Management of Periocular Basal Cell Carcinoma with Modified En Face Frozen Section Controlled Excision.” Ophthalmic and Plastic Reconstructive Surgery. 2002. Vol 18 (6): 430-435. • Therefore, avoiding exenteration was considered a good possibility Conclusion • Basal cell carcinomas are not always as innocent as we tend to believe • In formulating treatment course: – Strong pt preference and other pt factors – Current research