Prognostic Implication of Lymphovascular Invasion Detected by Double Immunostaining for D2-40 and MITF1 in Primary Cutaneous Melanoma.

Feldmeyer, Laurence; Tetzlaff, Michael; Fox, Patricia; Nagarajan, Priyadharsini; Curry, Jonathan; Ivan, Doina; Torres Cabala, Carlos A; Prieto, Victor G; Aung, Phyu P (2015). Prognostic Implication of Lymphovascular Invasion Detected by Double Immunostaining for D2-40 and MITF1 in Primary Cutaneous Melanoma. American journal of dermatopathology, 38(7), pp. 484-491. Lippincott Williams & Wilkins 10.1097/DAD.0000000000000453

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BACKGROUND Lymphovascular invasion (LVI) is associated with adverse outcomes in primary cutaneous melanoma (PCM). Detection of LVI by hematoxylin and eosin staining alone is 0%-6%, but targeting lymphovascular structures increases the detection rate. OBJECTIVE To examine the prognostic significance of LVI detected by immunostaining for D2-40 and microphthalmia-associated transcription factor 1 (MITF1) in PCM. METHODS The authors retrospectively analyzed 120 PCM samples. We compared the LVI detection rates of immunostaining for D2-40 only (22%), double staining for D2-40 and MITF1 (38%), and hematoxylin and eosin, and examined the association of LVI with clinicopathologic variables and clinical outcomes. RESULTS Immunolabeling with both methods significantly increased the LVI detection rate. Double staining for D2-40 and MITF1 as well as D2-40-detected LVI was significantly associated with increased Breslow thickness, number of mitoses, and sentinel lymph node (SLN) metastasis. D2-40-detected LVI was also associated with ulceration. Although the difference was not significant, double staining for D2-40 and MITF1 allowed for easier detection of LVI than D2-40 alone. LIMITATIONS This study was conducted in a tertiary referral institution; therefore, a referral bias cannot be excluded. CONCLUSIONS Immunolabeling increased detection of LVI in PCM. Because LVI is a positive predictive marker for SLN metastasis, the authors propose using anti-D2-40 and anti-MITF1 in the evaluation of LVI in patients with PCM with a certain risk of SLN metastasis.

Item Type:

Journal Article (Original Article)

Division/Institute:

04 Faculty of Medicine > Department of Dermatology, Urology, Rheumatology, Nephrology, Osteoporosis (DURN) > Clinic of Dermatology

UniBE Contributor:

Feldmeyer, Laurence

Subjects:

600 Technology > 610 Medicine & health

ISSN:

0193-1091

Publisher:

Lippincott Williams & Wilkins

Language:

English

Submitter:

Sandra Nyffenegger

Date Deposited:

02 Mar 2016 11:54

Last Modified:

11 Sep 2017 21:23

Publisher DOI:

10.1097/DAD.0000000000000453

PubMed ID:

26675354

BORIS DOI:

10.7892/boris.76259

URI:

https://boris.unibe.ch/id/eprint/76259

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