Meningothelial hamartoma of scalp mimicking encephalocele in an infant: A case report and review of literature
An extremely rare benign lesion of the scalp is reported in a 2-month-old infant. The lesion had been present since birth. On examination, a 3 × 4 cm skin-colored soft mass over the occipital midline area was observed. On ultrasound, a diagnosis of occipital encephalocele was suggested. A complete e...
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| Format: | Article |
| Language: | English |
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Wolters Kluwer Medknow Publications
2025-04-01
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| Series: | Indian Journal of Pathology and Microbiology |
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| Online Access: | https://journals.lww.com/10.4103/ijpm.ijpm_533_23 |
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| author | Amit Kumar Yadav Workalemahu A. Belachew |
| author_facet | Amit Kumar Yadav Workalemahu A. Belachew |
| author_sort | Amit Kumar Yadav |
| collection | DOAJ |
| description | An extremely rare benign lesion of the scalp is reported in a 2-month-old infant. The lesion had been present since birth. On examination, a 3 × 4 cm skin-colored soft mass over the occipital midline area was observed. On ultrasound, a diagnosis of occipital encephalocele was suggested. A complete excision of the mass was performed. Histological examination showed a subcutaneous lesion, which showed haphazardly arranged epithelioid cell nests admixed with connective tissue components, adipose tissues, and pseudovascular patterns within the deep dermis. Immunohistochemistry showed positive expression of Epithelial membrane antigen (EMA) and Vimentin. Tumor cells showed negative expression for Glial Fibrillary acidic protein (GFAP), chromogranin, S-100, Smooth muscle actin (SMA), and CD 34. Based on the clinical presentation, histologic features, and results of ancillary studies, a diagnosis of meningothelial hamartoma of the scalp was given. The clinical behavior of this lesion is benign but it often causes diagnostic confusion and may mimic malignant tumors. It is crucial to recognize the main features of this lesion. |
| format | Article |
| id | doaj-art-422ea42d5d284719abc3dda9bf57d8b2 |
| institution | DOAJ |
| issn | 0377-4929 0974-5130 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | Wolters Kluwer Medknow Publications |
| record_format | Article |
| series | Indian Journal of Pathology and Microbiology |
| spelling | doaj-art-422ea42d5d284719abc3dda9bf57d8b22025-08-20T02:58:07ZengWolters Kluwer Medknow PublicationsIndian Journal of Pathology and Microbiology0377-49290974-51302025-04-0168243844010.4103/ijpm.ijpm_533_23Meningothelial hamartoma of scalp mimicking encephalocele in an infant: A case report and review of literatureAmit Kumar YadavWorkalemahu A. BelachewAn extremely rare benign lesion of the scalp is reported in a 2-month-old infant. The lesion had been present since birth. On examination, a 3 × 4 cm skin-colored soft mass over the occipital midline area was observed. On ultrasound, a diagnosis of occipital encephalocele was suggested. A complete excision of the mass was performed. Histological examination showed a subcutaneous lesion, which showed haphazardly arranged epithelioid cell nests admixed with connective tissue components, adipose tissues, and pseudovascular patterns within the deep dermis. Immunohistochemistry showed positive expression of Epithelial membrane antigen (EMA) and Vimentin. Tumor cells showed negative expression for Glial Fibrillary acidic protein (GFAP), chromogranin, S-100, Smooth muscle actin (SMA), and CD 34. Based on the clinical presentation, histologic features, and results of ancillary studies, a diagnosis of meningothelial hamartoma of the scalp was given. The clinical behavior of this lesion is benign but it often causes diagnostic confusion and may mimic malignant tumors. It is crucial to recognize the main features of this lesion.https://journals.lww.com/10.4103/ijpm.ijpm_533_23immunohistochemistrymeningothelial hamartomascalp |
| spellingShingle | Amit Kumar Yadav Workalemahu A. Belachew Meningothelial hamartoma of scalp mimicking encephalocele in an infant: A case report and review of literature Indian Journal of Pathology and Microbiology immunohistochemistry meningothelial hamartoma scalp |
| title | Meningothelial hamartoma of scalp mimicking encephalocele in an infant: A case report and review of literature |
| title_full | Meningothelial hamartoma of scalp mimicking encephalocele in an infant: A case report and review of literature |
| title_fullStr | Meningothelial hamartoma of scalp mimicking encephalocele in an infant: A case report and review of literature |
| title_full_unstemmed | Meningothelial hamartoma of scalp mimicking encephalocele in an infant: A case report and review of literature |
| title_short | Meningothelial hamartoma of scalp mimicking encephalocele in an infant: A case report and review of literature |
| title_sort | meningothelial hamartoma of scalp mimicking encephalocele in an infant a case report and review of literature |
| topic | immunohistochemistry meningothelial hamartoma scalp |
| url | https://journals.lww.com/10.4103/ijpm.ijpm_533_23 |
| work_keys_str_mv | AT amitkumaryadav meningothelialhamartomaofscalpmimickingencephaloceleinaninfantacasereportandreviewofliterature AT workalemahuabelachew meningothelialhamartomaofscalpmimickingencephaloceleinaninfantacasereportandreviewofliterature |