Masson’s Tumour - Case Report of a Malignant Masquerader with Literature Review

Masson’s tumour, an uncommon, benign vascular disorder was first described by Pierre Masson in 1923 as an intravascular papillary proliferation that emerged from an inflamed hemorrhoidal vein of a 68-year-old man and termed it as “Hemangioendotheliome vegetant intravasculaire”.1 He interpreted the lesion as a form of neoplasm, however, Henschen portrayed it as a reactive phenomenon. The current terminology intravascular papillary endothelial hyperplasia (IPEH) was put forward by Clearkin and Enzinger in 1976 considering it as a reactive change occurring secondary to trauma-related vascular stasis.2 The tumour constitutes 2-4 % of all skin and soft tissue tumours. The common locations are head, neck and extremities.3 Masson’s tumour being a benign entity with an excellent prognosis is essential to differentiate from its closer mimic, angiosarcoma which needs aggressive treatment. This case is put up here because of its rarity and its clinical implications.

Pleomorphic lipoma: A rare entity

Pleomorphic lipoma is a rare neoplasm that is considered as a variant of spindle cell lipoma. It predominantly occurs in the dermis or subcutis of the posterior neck, upper back, and shoulders. Pleomorphic lipoma may clinically present as a slow-growing and well-circumscribed subcutaneous mass. Though it is a benign tumour it may contain atypical cells for which it may mimick sarcoma or other malignant soft tissue tumours. So histopathological diagnosis is vital for preventing unnecessary surgery. Here we report a case of a pleomorphic lipoma on upper back in a 55yr old patient.

Lipoma of Oral Cavity – A Case Report and Review of Literature

Connective tissue neoplasms or soft tissue tumours as they are popularly called are mesenchymal neoplasms that affect any part of the body. They occur frequently in all organs including the head and neck region and the oral cavity is no exception. The frequency of their occurrence contributes to 15 - 20 % of all head and neck neoplasms and neoplasms of oral cavity form 1 - 4 % of the reported lesions,1,2 representing 2.2 % of all lipomas.3 In a study by Moreno SE et al. in 2016 the most frequently affected sites were the buccal mucosa followed by the lips, tongue, palate, and other areas of the oral cavity.4Here we are documenting a case occurring in the buccal mucosa.

CASE REPORT : LIPOSARCOMA OF THE SHOULDER

Lipoma, a benign neoplasm of adipocytes, is the most common mesenchymal soft tissue tumor of adulthood, but rarely present with huge sizes in their cutaneous localization. Liposarcomas are the second most common soft tissue sarcoma following malignant brous histiocytoma. They comprise approximately 16-18% of all malignant soft tissue tumours. It is most common in the trunk followed by lower extremity, upper extremity and head and neck.. While lipomas can be clinically diagnosed , transformation of lipomas into liposarcoma is rare. Here we report the case of a 55 gentleman, who came with a history of swelling over the right shoulder with a probable malignant transformation due to history of long duration of presence of swelling. Management is usually by wide excision. Local radiation and chemotherapy may be necessary for high grade lesions.