We report a case of multiple extraosseous aneurysmal cysts occurring in the muscle and subcutaneous plane of postero-lateral aspects of the upper right leg. They appeared about 15 months after resection of aneurysmal bone cyst of the upper end of the fibula. They varied in size from 2 cm to 5 cm. Radiologically they were well-defined lesions with central septate areas surrounded by a rim of calcification. Histologically they showed central cystic spaces separated by septa consisting of fibroblasts, osteoclast type of giant cells and reactive woven bone. Thus they showed histological similarity with aneurysmal bone cysts, but did not show any connection with the bone. Only very few examples of aneurysmal cysts of soft tissue had been described in the past one decade and they were reported in various locations including rare sites such as arterial wall and larynx. Recent cytogenetic analyses have shown abnormalities involving 17p11-13 and/or 16q22 in both osseous and extraosseous aneurysmal cysts indicating its probable neoplastic nature. Our case had unique features like multiplicity and occurrence after resection of primary aneurysmal bone cyst of the underlying bone.
We report the case of an 11-year old girl who presented with an intracranial chondromyxoid fibroma arising from parietal bone. Chondromyxoid fibroma is a benign cartilaginous neoplasm, which can be easily mistaken for chondrosarcoma, especially in small biopsies. It is more common in long bones and is least common in cranial bones. Published work describes about 33 cases occurring in cranial bones with almost equal incidence in the bones of the base of the skull and cranial vault. To our knowledge, this is the second case of chondromyxoid fibroma reported to occur in parietal bone and is the first case reported in an English-language journal. We present this case for its rare anatomical, clinical, radiological and histological presentations.
Scenario of PTC in our tertiary care setup which warrants attention is male preponderance of multicentric lesions. Further, a high association with colloid nodular goitre, while low incidence of tall cell variant is notable clinico pathological scenarios in this study.
P sammomatoid ossifying fibroma (POF) is a variant of ossifying fibroma that typically involves the sinonasal tract. 1 It is a benign, well-demarcated fibro-osseous lesion composed of numerous small, round ossicles or psammomatoid bodies dispersed in cellular fibrous stroma. 2 It is histologically and behaviorally distinct from other fibroosseous lesions such as ossifying fibroma and fibrous dysplasia. It causes cosmetic disfigurement and has the tendency to recur, hence complete surgical excision or follow-up in the event of incomplete removal is mandatory.
DISCUSSIONPOF is a locally aggressive fibro-osseous tumor. The onset of POF is often in the mid-teenage years and average duration of symptoms before presentation varies from 4 to 5
Phaeohyphomycosis comprises a spectrum of mycotic infectious diseases caused by heterogeneous group of phaeoid fungi. A subcutaneous cystic swelling with histological hallmark of pigmented hyphae in tissues accompanied by pyogenic granuloma is diagnostic of phaeohyphomycosis. We present two cases of phaeohyphomycosis in 65- and 55-year-old male agriculturalists, who presented with multiple, cystic soft-tissue masses involving extremities. Culture was done in one case and the specific organism was identified as Aureobasidium pullulans.
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