Σφακιανάκης Αλέξανδρος
ΩτοΡινοΛαρυγγολόγος
Αναπαύσεως 5 Άγιος Νικόλαος
Κρήτη 72100
00302841026182
00306932607174
alsfakia@gmail.com

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! # Ola via Alexandros G.Sfakianakis on Inoreader

Η λίστα ιστολογίων μου

Πέμπτη 25 Ιανουαρίου 2018

Lichen planopilaris and frontal fibrosing alopecia cannot be differentiated by histopathology

Abstract

Background

Lichen planopilaris (LPP) and frontal fibrosing alopecia (FFA) represent two entities that cause primary cicatricial alopecia. These entities are clinically different; nevertheless the literature suggests that FFA represents a form of LPP. The main argument in support of this hypothesis is that previous studies comparing the histologic findings have not found obvious differences between these diseases.

Methods

Our objective was to more critically compare and contrast 20 histologic findings of these diseases in a large number of patients in order to determine any significant histologic differences between LPP and FFA.

Results

We found three parameters that were statistically different, namely the presence of terminal catagen-telogen hairs (50% FFA versus 23.5% LPP; p = 0.020); a severe perifollicular inflammatory infiltrate (29.4% LPP versus 4.6% FFA; p = 0.010); and a zone of concentric lamellar fibroplasia (85.3% LPP versus 63.6% FFA; p = 0.041).

Conclusions

Although a few histologic features differ between FFA and LPP, we believe these differences are too subtle or non-specific to distinguish between them with confidence. Therefore, clinical correlation is essential to establish the diagnosis.



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