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Verdaguer-Faja J, Guerra-Amor Á, Ferrándiz-Pulido C, Abril-Pérez C, Botella Estrada R, Masferrer E, Lopez-Castillo D, Deza G, Leal L, Marti-Marti I, Ruiz-Salas V, Yébenes M, Marqués Martin L, Baliu C, Castany A, Boada A, Toll A, Jaka A. Histological deep margins in cutaneous squamous cell carcinoma of the scalp and risk of recurrence. J Eur Acad Dermatol Venereol 2024. [PMID: 39036869 DOI: 10.1111/jdv.20250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2024] [Accepted: 06/26/2024] [Indexed: 07/23/2024]
Abstract
BACKGROUND Consensus is lacking on adequate deep histological margins in cutaneous squamous cell carcinoma (cSCC). Deep clearance for tumours located on the scalp is limited by anatomic constraints. OBJECTIVE To determine whether clear but close deep histological margins (<1 mm) confer a higher risk of recurrence in cSCCs of the scalp treated by wide local excision, compared to deep histological margins ≥1 mm. METHODS Multicentre retrospective observational cohort study and multivariate competing risk analysis to evaluate risk factors for recurrence. RESULTS In total, 295 patients with 338 cSCCs were included. Close deep histological margins were not associated with an increased cumulative incidence of recurrence (subhazard ratio [SHR] 1.96 [95% CI 0.87-4.41]). However, an increased risk of recurrence was observed for those tumours that presented concurrent invasion of the galea aponeurotica and close deep margins, as opposed to patients without these factors (SHR 3.52 [1.24-10.01]). Tumours with clear but close peripheral margins (<1 mm) also had higher risk of recurrence (SHR 5.01 [1.68-14.97]). LIMITATIONS Retrospective observational study based on pathology reports. CONCLUSION Deep histological margins <1 mm do not confer a greater risk of recurrence as long as the tumour is completely excised and the galea aponeurotica is not involved. Surgical excision of cSCC on the scalp should include the galea to ensure proper assessment of deep margins.
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Affiliation(s)
- Júlia Verdaguer-Faja
- Departament de Medicina, Universitat Autònoma de Barcelona (UAB), Barcelona, Spain
- Department of Dermatology, Hospital Universitari Germans Trias i Pujol, Badalona, Spain
| | - Álvaro Guerra-Amor
- Department of Dermatology, Hospital Universitari Vall d'Hebron, Barcelona, Spain
| | - Carla Ferrándiz-Pulido
- Department of Dermatology, Hospital Universitari Germans Trias i Pujol, Badalona, Spain
- Department of Dermatology, Hospital Universitari Vall d'Hebron, Barcelona, Spain
| | - Carlos Abril-Pérez
- Department of Dermatology, Hospital Universitario La Fe, Instituto de Investigación Sanitaria La Fe (ISS La Fe), Valencia, Spain
| | - Rafael Botella Estrada
- Department of Dermatology, Hospital Universitario La Fe, Instituto de Investigación Sanitaria La Fe (ISS La Fe), Valencia, Spain
- Universidad de Valencia, Valencia, Spain
| | - Emili Masferrer
- Department of Dermatology, Hospital Universitari Mútua Terrassa, Terrassa, Spain
| | | | - Gustavo Deza
- Department of Dermatology, Hospital del Mar, Institut Mar d'Investigacions Mèdiques, Barcelona, Spain
| | - Lorena Leal
- Department of Dermatology, Hospital del Mar, Institut Mar d'Investigacions Mèdiques, Barcelona, Spain
| | - Ignasi Marti-Marti
- Department of Dermatology, Hospital Clínic de Barcelona, Universitat de Barcelona, Barcelona, Spain
| | - Verónica Ruiz-Salas
- Department of Dermatology, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
| | - Mireia Yébenes
- Department of Dermatology, Hospital Parc Taulí, Sabadell, Spain
| | | | - Carola Baliu
- Department of Dermatology, Hospital Universitari d'Igualada, Igualada, Spain
| | - Anna Castany
- Department of Dermatology, Hospital Universitari d'Igualada, Igualada, Spain
| | - Aram Boada
- Departament de Medicina, Universitat Autònoma de Barcelona (UAB), Barcelona, Spain
- Department of Dermatology, Hospital Universitari Germans Trias i Pujol, Badalona, Spain
| | - Agustí Toll
- Department of Dermatology, Hospital Clínic de Barcelona, Universitat de Barcelona, Barcelona, Spain
| | - Ane Jaka
- Departament de Medicina, Universitat Autònoma de Barcelona (UAB), Barcelona, Spain
- Department of Dermatology, Hospital Universitari Germans Trias i Pujol, Badalona, Spain
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2
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Pascual MG, Bruckner AL, Torres-Zegarra C. A solitary scalp mass as the presenting feature of clear cell sarcoma of the kidney in a pediatric patient. Pediatr Dermatol 2024; 41:684-687. [PMID: 38243696 DOI: 10.1111/pde.15539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Accepted: 01/09/2024] [Indexed: 01/21/2024]
Abstract
Clear cell sarcoma of the kidney is a rare renal malignancy, accounting for 2%-4% of all pediatric renal tumors. In this case report, we describe a 9-year-old boy with an asymptomatic, solitary mass on the scalp, ultimately found to be metastatic clear cell sarcoma of the kidney. This report reviews indications for imaging scalp masses to facilitate making an accurate diagnosis and treatment planning.
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Affiliation(s)
- Micah G Pascual
- Anschutz Medical Campus, University of Colorado School of Medicine, Aurora, Colorado, USA
| | - Anna L Bruckner
- Department of Dermatology, University of Colorado School of Medicine, Aurora, Colorado, USA
| | - Carla Torres-Zegarra
- Department of Dermatology, University of Colorado School of Medicine, Aurora, Colorado, USA
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3
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Yang L, Yang MC, Qu PR, Zhang D, Ge M, Li DP. A retrospective study comprising 228 cases of pediatric scalp and skull lesions. BMC Pediatr 2023; 23:478. [PMID: 37730564 PMCID: PMC10510136 DOI: 10.1186/s12887-023-04231-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Accepted: 08/07/2023] [Indexed: 09/22/2023] Open
Abstract
BACKGROUND Most neurosurgery presentations in children present with a mass that may be scalp and skull lesions, including neoplastic and congenital malformed structural lesions, respectively. Clinicians should make early diagnoses and identify cases requiring surgical intervention promptly to help achieve a better prognosis. METHOD This study retrospectively reviewed studies on children's scalp and skull lesions within a pediatric medical center's department of neurosurgery. The detailed clinical information and pathological types of these cases were scrutinized. RESULT A total of 228 children's scalp and skull lesions with clinical information and identified histopathology types were summarized. The most common scalp and skull lesions were benign dermoid cysts; malignant types were rare but can occur in children. CONCLUSION Based on the combined clinical symptoms and image information, children's scalp and skull lesions should be diagnosed early. Malignant scalp and skull lesions/other special cases should be treated seriously.
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Affiliation(s)
- Lei Yang
- Department of Otolaryngology, Head and Neck Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, 100045, China
| | - Meng-Cheng Yang
- Department of Urological Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, 100045, China
| | - Pei-Ran Qu
- Department of Neurosurgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, No. 56, Nanlishi Road, Xicheng District, Beijing, 100045, China
| | - Di Zhang
- Department of Neurosurgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, No. 56, Nanlishi Road, Xicheng District, Beijing, 100045, China
| | - Ming Ge
- Department of Neurosurgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, No. 56, Nanlishi Road, Xicheng District, Beijing, 100045, China
| | - Da-Peng Li
- Department of Neurosurgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, No. 56, Nanlishi Road, Xicheng District, Beijing, 100045, China.
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4
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Doan M, Ramani NS, Arbab F, Green LK. Fine-needle aspiration of scalp masses: A review of 30 cases. Diagn Cytopathol 2023; 51:140-145. [PMID: 36334039 DOI: 10.1002/dc.25073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Revised: 10/21/2022] [Accepted: 10/25/2022] [Indexed: 11/07/2022]
Abstract
INTRODUCTION Scalp masses are often the initial presentation of a widely disseminated malignancy. Fine-needle aspiration (FNA) is an optimal method for obtaining an accurate tissue diagnosis, in these patients with initial presentation and those with a known malignancy. MATERIALS AND METHODS We reviewed all FNAs of skin and soft tissue lesions from the scalp at our institution over a period of 31 years (1990-2021). Relevant clinical information was obtained from the review of computerized patient record. The histologic type, presentation, previous diagnoses, and survival after the diagnosis were correlated. RESULTS Thirty patients with scalp masses were identified. All the patients were males with a median age of 61 years (27-81 years). The scalp masses ranged from 0.4 to 6 cm in size. Ten cases (33%) were benign, but the majority of cases (n = 20, 67%) were malignant. Of the malignant lesions sampled, 1 case was a primary squamous-cell carcinoma (SCC), and the remaining 19 cases were metastatic tumors. Of these, 13 cases (68.4%) had a previously diagnosed malignancy. Most of the 19 metastatic lesions were adenocarcinomas or poorly differentiated carcinomas (n = 12, 63.2%), followed by melanoma (n = 4), SCC (n = 1), alveolar soft part sarcoma (n = 1) and large cell lymphoma (n = 1). The most common site of primary was the gastrointestinal tract (6/19, 31.5%) and lung (6/19, 31.5%). The average survival after the diagnosis of these scalp metastases was around 6.3 months, signifying a poor prognosis. CONCLUSION In our patient population, most scalp masses were metastatic tumors. Metastasis to the scalp signals advanced disease and is associated with a very poor prognosis. FNA is an easy, safe, rapid, cost effective and precise modality for diagnosing these masses. It can also yield material for molecular testing for newer directed therapies, if needed.
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Affiliation(s)
- Mary Doan
- Department of Pathology, Michael E. DeBakey VA Medical Center, Houston, Texas, USA.,Department of Pathology, Baylor College of Medicine, Houston, Texas, USA
| | - Nisha S Ramani
- Department of Pathology, Michael E. DeBakey VA Medical Center, Houston, Texas, USA.,Department of Pathology, Baylor College of Medicine, Houston, Texas, USA
| | - Farinaz Arbab
- Department of Pathology, Michael E. DeBakey VA Medical Center, Houston, Texas, USA.,Department of Pathology, Baylor College of Medicine, Houston, Texas, USA
| | - Linda K Green
- Department of Pathology, Michael E. DeBakey VA Medical Center, Houston, Texas, USA.,Department of Pathology, Baylor College of Medicine, Houston, Texas, USA
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Meyer A, Stadie V. [Artificial ulcer with perforating bone defect on the scalp due to repeated - scratching attacks in dementia syndrome]. Dtsch Med Wochenschr 2022; 147:720-723. [PMID: 35636425 DOI: 10.1055/a-1828-6505] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
HISTORY We report on a 72-year-old demented patient with a palm-sized skin defect on the scalp, who has been manipulating her head several times a day with her fingers but also with sharp objects for many months. CLINICAL FINDINGS A 4 × 6 cm circular, cleanly granulated ulcer was visible on the high parietal surface. On general examination, the patient was little affected: no fever, no signs of inflammation around the ulcer, no evidence of meningitis. EXAMINATIONS There was no histological evidence of the presence of a malignant or benign tumor. A CT of the skull showed a bony defect measuring 2.6 × 3.3 cm without involvement of the dura. The whole body CT without pathological findings. THERAPY AND COURSE First, a protective helmet was made for the patient. Subsequently, a titanium plate was surgically inserted as a bone substitute and the defect was closed by means of transpositionoplasty. In the two-year follow-up, no tumor disease was detected. CONCLUSION Due to the lack of evidence of tumorigenesis in a follow-up period of two years, we evaluate the lesion as an artificial ulcer with perforating bone defect caused by repeated scratching attacks in the context of dementia syndrome.
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Affiliation(s)
- Alexandra Meyer
- Klinik und Poliklinik für Dermatologie und Venerologie, Universitätsklinikum Halle/Saale
| | - Volker Stadie
- Klinik und Poliklinik für Dermatologie und Venerologie, Universitätsklinikum Halle/Saale
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6
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Unadkat P, Vitkovski T, Zaidi R, Eisenberg M. Meningothelial Hamartoma Overlying a Prior Craniotomy: A Case Report and Review of Literature. Asian J Neurosurg 2022; 17:137-140. [PMID: 35873844 PMCID: PMC9298592 DOI: 10.1055/s-0042-1749129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
Abstract
AbstractMeningothelial hamartomas are benign lesions of the scalp with a handful of case reports published. Usually thought to be congenital lesions, they have, on occasion, been seen in older adults. In this report, we describe the first ever reported case of a patient diagnosed with a meningothelial hamartoma overlying a prior craniotomy performed two decades prior. We also briefly describe the literature surrounding these rare lesions, as well as their management and differential diagnosis.
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Affiliation(s)
- Prashin Unadkat
- Department of Neurosurgery, North Shore University Hospital, Northwell Health, Manhasset, New York, United States
- Zucker School of Medicine at Hofstra/Northwell Health, Hempstead, New York, United States
| | - Taisia Vitkovski
- Zucker School of Medicine at Hofstra/Northwell Health, Hempstead, New York, United States
- Department of Pathology, North Shore University Hospital, Northwell Health, Manhasset, New York, United States
| | - Raza Zaidi
- Zucker School of Medicine at Hofstra/Northwell Health, Hempstead, New York, United States
- Department of Pathology, North Shore University Hospital, Northwell Health, Manhasset, New York, United States
| | - Mark Eisenberg
- Department of Neurosurgery, North Shore University Hospital, Northwell Health, Manhasset, New York, United States
- Zucker School of Medicine at Hofstra/Northwell Health, Hempstead, New York, United States
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7
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Technical Nuances During Reconstruction of a Complex Scalp Defect: a Pictorial Essay. Indian J Surg 2021. [DOI: 10.1007/s12262-021-02746-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
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8
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Boylan CT, Gaston MS, Merwaha P, Nader K, Rayatt S. Assessing the accuracy of computed tomography in detecting bony invasion and thickness of squamous cell carcinoma of the scalp. Neuroradiol J 2021; 34:622-628. [PMID: 34078144 PMCID: PMC8649184 DOI: 10.1177/19714009211017777] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
OBJECTIVES The aim of this study was to ascertain the accuracy of computed tomography (CT) in assessing the presence of bony involvement and thickness of squamous cell carcinoma (SCC) of the scalp. METHODS A single-centre retrospective chart review was carried out. Inclusion criteria were scalp SCC, CT between January 2008 and 2018, and the availability of a reference test. Reference tests were either histology, surgical notes or clinical notes. Tabular assessment of accuracy was performed and Student's t-test, Mann-Whitney U test and Fisher exact test were used in univariable analysis. Accuracy of thickness measurement was calculated using the limits of agreement method, and linear regression was used to examine trend. RESULTS Thirty-nine patients were included. Most patients were male (74.4%), white (97.4%), not immunosuppressed (66.6%) and had poorly differentiated tumours (33.3%). The most common tumour sites were the vertex (28.2%) and temporal region (23.1%). Sensitivity of CT in detecting presence or absence of bony invasion of scalp SCC was 76.9% (95% CI 46.2-94.9%) and specificity was 96.2% (95% CI 80.4-99.9%). Overall accuracy was 89.7% (95% CI 75.8-97.1%), positive predictive value was 90.1% (95% CI 58.7-99.8%) and negative predictive value was 89.3% (95% CI 71.8-97.7%). No significant differences were found comparing patients with an accurate or inaccurate CT scan. Thickness on CT was found to be consistent with histological thickness at the 95% confidence level. CONCLUSIONS CT is accurate at assessing the presence of bony involvement and thickness of scalp SCC. This study was limited somewhat by small sample size.
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Affiliation(s)
- Conor T Boylan
- Medical School, University of Birmingham College of Medical and Dental Sciences, UK
| | - Michaela S Gaston
- Medical School, University of Birmingham College of Medical and Dental Sciences, UK
| | - Puja Merwaha
- Medical School, University of Birmingham College of Medical and Dental Sciences, UK
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9
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Kromer C, Vlahova LD, Julius K, Schnabel V, Schön MP, Gottberg PV, Kretschmer L. Subgaleale Infiltration verbessert MRT‐gestützte Operationsplanung bei Kopfhauttumoren. J Dtsch Dermatol Ges 2021; 19:1524-1526. [PMID: 34661360 DOI: 10.1111/ddg.14531_g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Christian Kromer
- Department of Dermatology, Venereology, and Allergology, University Medical Center, Göttingen, Göttingen, Germany
| | - Lyubomira D Vlahova
- Department of Dermatology, Venereology, and Allergology, University Medical Center, Göttingen, Göttingen, Germany
| | - Katharina Julius
- Department of Dermatology, Venereology, and Allergology, University Medical Center, Göttingen, Göttingen, Germany
| | - Viktor Schnabel
- Department of Dermatology, Venereology, and Allergology, University Medical Center, Göttingen, Göttingen, Germany
| | - Michael P Schön
- Department of Dermatology, Venereology, and Allergology, University Medical Center, Göttingen, Göttingen, Germany.,Lower Saxony Institute of Occupational Dermatology, University Medical Center Göttingen, Göttingen, Germany
| | - Philipp V Gottberg
- Institute of diagnostic and interventional Neuroradiology, University Medical Center, Göttingen, Göttingen, Germany
| | - Lutz Kretschmer
- Department of Dermatology, Venereology, and Allergology, University Medical Center, Göttingen, Göttingen, Germany
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10
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Saleem R, Vaidya S. A Case of Eccrine Mucinous Carcinoma Involving Scalp. Cureus 2021; 13:e16469. [PMID: 34430089 PMCID: PMC8372668 DOI: 10.7759/cureus.16469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/18/2021] [Indexed: 11/21/2022] Open
Abstract
The report presents a case of a 67-year-old female with a long-standing lump on the scalp. After its excision the histopathology revealed consistency with eccrine mucinous carcinoma. These neoplasms are quite rare with only around 100 cases reported since 1951. The report concludes the importance of encouraging follow-up of cutaneous lesions among patients as well as ongoing research to better identify and manage the tumor.
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Affiliation(s)
- Ramsha Saleem
- Dermatology, The Queen Elizabeth Hospital, Adelaide, AUS
| | - Sachin Vaidya
- Dermatology, The Queen Elizabeth Hospital, Adelaide, AUS
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11
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Kromer C, Vlahova LD, Julius K, Schnabel V, Schön MP, Gottberg PV, Kretschmer L. Subgaleal infiltration improves MRI-supported surgical planning for scalp tumors. J Dtsch Dermatol Ges 2021; 19:1524-1526. [PMID: 34191383 DOI: 10.1111/ddg.14531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Accepted: 03/29/2021] [Indexed: 12/01/2022]
Affiliation(s)
- Christian Kromer
- Department of Dermatology, Venereology, and Allergology, University Medical Center, Göttingen, Göttingen, Germany
| | - Lyubomira D Vlahova
- Department of Dermatology, Venereology, and Allergology, University Medical Center, Göttingen, Göttingen, Germany
| | - Katharina Julius
- Department of Dermatology, Venereology, and Allergology, University Medical Center, Göttingen, Göttingen, Germany
| | - Viktor Schnabel
- Department of Dermatology, Venereology, and Allergology, University Medical Center, Göttingen, Göttingen, Germany
| | - Michael P Schön
- Department of Dermatology, Venereology, and Allergology, University Medical Center, Göttingen, Göttingen, Germany.,Lower Saxony Institute of Occupational Dermatology, University Medical Center Göttingen, Göttingen, Germany
| | - Philipp V Gottberg
- Institute of diagnostic and interventional Neuroradiology, University Medical Center, Göttingen, Göttingen, Germany
| | - Lutz Kretschmer
- Department of Dermatology, Venereology, and Allergology, University Medical Center, Göttingen, Göttingen, Germany
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12
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Kawaguchi M, Kato H, Suzui N, Miyazaki T, Tomita H, Hara A, Matsuyama K, Seishima M, Matsuo M. Imaging findings of trichilemmal cyst and proliferating trichilemmal tumour. Neuroradiol J 2021; 34:615-621. [PMID: 34060944 DOI: 10.1177/19714009211017789] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
PURPOSE The purpose of this study was to evaluate computed tomography and magnetic resonance imaging of benign trichilemmal cysts and proliferating trichilemmal tumours. METHODS Nineteen histologically confirmed cutaneous lesions with trichilemmal keratinisation (12 trichilemmal cysts and seven proliferating trichilemmal tumours) were enrolled. Among them, 10 lesions (six trichilemmal cysts and four proliferating trichilemmal tumours) were examined by computed tomography, while 13 lesions (eight trichilemmal cysts and five proliferating trichilemmal tumours) were examined by magnetic resonance imaging. Computed tomography and magnetic resonance imaging characteristics were retrospectively reviewed. RESULTS Sixteen lesions (84%, 10 trichilemmal cysts and six proliferating trichilemmal tumours) occurred on the scalp. Lobulated margins were observed in five lesions (26%, three trichilemmal cysts and two proliferating trichilemmal tumours). With respect to computed tomography attenuation, calcification (>200 Hounsfield units) was observed in seven lesions (70%, five trichilemmal cysts and two proliferating trichilemmal tumours), hyperdense areas (≥80 and ≤200 Hounsfield units) in six (60%, three trichilemmal cysts and three proliferating trichilemmal tumours), and soft tissue density areas (<80 Hounsfield units) in nine (90%, five trichilemmal cysts and four proliferating trichilemmal tumours). On T1-weighted images, intratumoral hyperintensity was only observed in eight trichilemmal cysts but no proliferating trichilemmal tumours (100% vs. 0%, P<0.01). On T2-weighted images, hypointense rim and intratumoral hypointensity was observed in all 13 lesions (100%, eight trichilemmal cysts and five proliferating trichilemmal tumours), and linear or reticular hypointensity was observed in 10 (77%, six trichilemmal cysts and four proliferating trichilemmal tumours). CONCLUSION Trichilemmal cysts and proliferating trichilemmal tumours predominantly occurred on the scalp with calcification, and usually exhibited linear or reticular T2 hypointensity. Intratumoral T1 hyperintensity may be a useful imaging feature for differentiating trichilemmal cysts from proliferating trichilemmal tumours.
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Affiliation(s)
| | - Hiroki Kato
- Department of Radiology, Gifu University, Gifu, Japan
| | - Natsuko Suzui
- Department of Pathology, Gifu University, Gifu, Japan
| | | | | | - Akira Hara
- Department of Tumor Pathology, Gifu University, Gifu, Japan
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13
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Camillo MC, Andrade MI, Soares CT, Nakandakari S, Miola AC. Scalp paracoccidioidomycosis: A rare and exuberant manifestation. Indian J Dermatol Venereol Leprol 2021; 87:246-248. [PMID: 33769750 DOI: 10.25259/ijdvl_923_20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Accepted: 09/01/2020] [Indexed: 11/04/2022]
Affiliation(s)
| | - Maria Izilda Andrade
- Department of Dermatology, Lauro de Souza Lima Institute, Bauru, São Paulo, Brazil
| | | | | | - Anna Carolina Miola
- Department of Dermatology, Lauro de Souza Lima Institute, Bauru, São Paulo, Brazil
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14
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Boylan CT, Gaston MS, Merwaha P. A Proposed System for Redefining of the Zones of the Scalp. Int J Trichology 2020; 12:140-141. [PMID: 33223745 PMCID: PMC7659734 DOI: 10.4103/ijt.ijt_119_20] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Accepted: 07/21/2020] [Indexed: 01/24/2023] Open
Affiliation(s)
- Conor T Boylan
- College of Medical and Dental Sciences, University of Birmingham, Birmingham, United Kingdom
| | - Michaela S Gaston
- College of Medical and Dental Sciences, University of Birmingham, Birmingham, United Kingdom
| | - Puja Merwaha
- College of Medical and Dental Sciences, University of Birmingham, Birmingham, United Kingdom
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15
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Kim T, Kim J, Choi J, Oh S, Kwon S, Jeong W. Meningothelial hamartoma of the scalp. Arch Craniofac Surg 2020; 21:180-183. [PMID: 32630991 PMCID: PMC7349136 DOI: 10.7181/acfs.2019.00766] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Accepted: 04/22/2020] [Indexed: 11/16/2022] Open
Abstract
Meningothelial hamartoma is a benign tumor composed of ectopic meningothelial elements in the dermis and subcutaneous tissue. It mainly occurs in the scalp; however, the incidence is extremely low. The origin of meningothelial hamartoma has not been elucidated; nevertheless, it has been theorized that it derives from ectopic meningothelial rests displaced during embryologic development. It can be diagnosed histologically as proliferation of connective tissue elements and cells arranged in solid nests, resembling vascular tumors. On immunohistochemistry, it stains positively for epithelial membrane antigen and vimentin. At least 17 cases have been reported, verifying the rarity of the lesion. We present the case of a 16-year-old male patient with a soft scalp mass which was thought to be a lipoma, but turned out to be a meningothelial hamartoma on histology.
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Affiliation(s)
- Taeki Kim
- Department of Plastic and Reconstructive Surgery, Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Korea
| | - Junhyung Kim
- Department of Plastic and Reconstructive Surgery, Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Korea
| | - Jaehoon Choi
- Department of Plastic and Reconstructive Surgery, Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Korea
| | - Sangho Oh
- Department of Plastic and Reconstructive Surgery, Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Korea
| | - Sunyoung Kwon
- Department of Pathology, Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Korea
| | - Woonhyeok Jeong
- Department of Plastic and Reconstructive Surgery, Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Korea
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Kawaguchi M, Kato H, Matsuo M. CT and MRI features of scalp lesions. Radiol Med 2019; 124:1049-1061. [DOI: 10.1007/s11547-019-01060-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Accepted: 06/24/2019] [Indexed: 12/22/2022]
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