Nevus Sebaceous of the Scalp With Stepwise Progression Into Invasive Syringocystadenocarcinoma Papilliferum

2021 ◽  
Vol Publish Ahead of Print ◽  
Author(s):  
Hermann Kneitz ◽  
Matthias Goebeler ◽  
Arno Rütten
Keyword(s):  
2021 ◽  
Vol 11 (6) ◽  
pp. 793
Author(s):  
Chiara Pepi ◽  
Luca de Palma ◽  
Marina Trivisano ◽  
Nicola Pietrafusa ◽  
Francesca Romana Lepri ◽  
...  

The rare nevus sebaceous (NS) syndrome (NSS) includes cortical malformations and drug-resistant epilepsy. Somatic RAS-pathway genetic variants are pathogenetic in NS, but not yet described within the brain of patients with NSS. We report on a 5-year-old boy with mild psychomotor delay. A brown-yellow linear skin lesion suggestive of NS in the left temporo-occipital area was evident at birth. Epileptic spasms presented at aged six months. EEG showed continuous left temporo-occipital epileptiform abnormalities. Brain MRI revealed a similarly located diffuse cortical malformation with temporal pole volume reduction and a small hippocampus. We performed a left temporo-occipital resection with histopathological diagnosis of focal cortical dysplasia type Ia in the occipital region and hippocampal sclerosis type 1. Three years after surgery, he is seizure-and drug-free (Engel class Ia) and showed cognitive improvement. Genetic examination of brain and skin specimens revealed the c.35G > T (p.Gly12Val) KRAS somatic missense mutation. Literature review suggests epilepsy surgery in patients with NSS is highly efficacious, with 73% probability of seizure freedom. The few histological analyses reported evidenced disorganized cortex, occasionally with cytomegalic neurons. This is the first reported association of a KRAS genetic variant with cortical malformations associated with epilepsy, and suggests a possible genetic substrate for hippocampal sclerosis.


2003 ◽  
Vol 17 (8) ◽  
pp. 703-706 ◽  
Author(s):  
Abdullah Özkiriş ◽  
Cem Evereklioglu ◽  
Mustafa Kula ◽  
Mehmet Somdaş ◽  
Kuddusi Erkiliç ◽  
...  
Keyword(s):  

PEDIATRICS ◽  
1973 ◽  
Vol 52 (3) ◽  
pp. 382-387
Author(s):  
Frederick H. Lovejoy ◽  
William E. Boyle

Two cases of linear nevus sebaceous syndrome are described and a review of the eleven cases now reported in the literature is undertaken. The first patient has retardation, seizures, and classic ectodermal lesions while the second patient manifests typical cutaneous lesions and only an elevated cerebrospinal fluid protein as evidence of neurologic disease. The rationale for defining the syndrome as an entity distinct from other neurocutaneous syndromes is discussed and a pleomorphic presentation of the syndrome is suggested.


2013 ◽  
Vol 5 ◽  
pp. 320-323 ◽  
Author(s):  
Magdalena Kiedrowicz ◽  
Anna Kacalak-Rzepka ◽  
Andrzej Królicki ◽  
Romuald Maleszka ◽  
Stanisława Bielecka-Grzela

2018 ◽  
Vol 30 (3) ◽  
pp. 368
Author(s):  
Seung Hyun Chun ◽  
Bo Young Kim ◽  
Ji Hyun Park ◽  
Il-Hwan Kim ◽  
Hwa Jung Ryu

2016 ◽  
Vol 22 (1) ◽  
Author(s):  
SA Chan ◽  
R Hejmadi ◽  
K Webster ◽  
MR Kaur
Keyword(s):  

2016 ◽  
Vol 8 (1) ◽  
pp. 5 ◽  
Author(s):  
BalachandraS Ankad ◽  
SavithaL Beergouder ◽  
Vijay Domble
Keyword(s):  

2009 ◽  
Vol 26 (2) ◽  
pp. 236-237 ◽  
Author(s):  
HICHEM BELHADJALI ◽  
ADNENE MOUSSA ◽  
SAMIRA YAHIA ◽  
LEILA NJIM ◽  
ABDELFATTAH ZAKHAMA ◽  
...  

2018 ◽  
Vol 27 (1) ◽  
pp. 19-27 ◽  
Author(s):  
Cem Leblebici ◽  
Buket Bambul Sığırcı ◽  
Canan Kelten Talu ◽  
Sevim Baykal Koca ◽  
Gülben Erdem Huq

Background. Trichoblastoma (TB) and basal cell carcinoma (BCC) are 2 different neoplasms composed of basaloid cells and have overlapping histopathological features. We compared the immunoexpression of CD10, T-cell death-associated gene 51 (TDAG51), cytokeratin 20 (CK20), androgen receptor (AR), insulinoma-associated protein 1 (INSM1), and nestin for the differential diagnosis of these tumors. Materials and Methods. We assessed a total of 27 BCC and 27 TB cases, including 4 TB lesions in nevus sebaceous and 3 malignant TB lesions for CD10, TDAG51, CK20, AR, INSM1, and nestin expression. Results. Staining for CK20, TDAG51, INSM1, and stromal CD10 was significantly more common in TB cases than in BCC cases ( P < .001). Epithelial CD10 and AR staining was significantly more common in BCC cases than in TB cases ( P < .001). The difference between the groups for nestin staining was not significant ( P > .05). Stromal CD10 staining was the most sensitive marker (96.3%) and INSM1 the least sensitive (55.6%) marker for TB. TDAG51 showed 100% specificity for TB. A larger number of CK20 positive cells was found in the cases associated with nevus sebaceous than in the other TBs. Conclusion. All the selected markers except nestin were useful for the differential diagnosis between TB and BCC. CD10 and TDAG51 were more useful than the other markers. The use of CK20 could be preferred in nevus sebaceous lesions. INSM1 was less effective in highlighting Merkel cells within the lesion than CK20.


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