Angiogenic histogenesis of non-hematopoietic mesenchymal hyperplasias and tumors.
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Ectomesenchymal chondromyxoid tumor (ECMT) is a rare tumor. Only 26 cases of ECMT have been reported, all occurred in the anterior tongue. We present a case of a 30-year-old male with a nodule in the hard palate, which was reported as ECMT on histopathology. The differential diagnosis considered included are extraskeletal myxoid chondroma, ECMT, pleomorphic adenoma, oral focal mucinosis, chondroid choristoma, and ossifying fibromyxoid tumor. After serial sections no other component was observed and a diagnosis of ECMT was made by exclusion. The patient is asymptomatic on follow up. A review of existing literature is also presented here.
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The authors report the case of a gastro-intestinal stromal tumor (GIST) with unusual clinico-pathological features, presenting as a large cystic rectal mass in a young man. The differential diagnosis of pelvic masses is discussed. In light of this case, the recent literature related to the pathogenesis, diagnosis and treatment of GIST is reviewed.
BACKGROUND: Gastrointestinal stromal tumors (GISTs) are rare mesenchymal tumors of the gastrointestinal tract localized mostly in the upper or medial part of the digestion tract. CASE: A colonic GIST in a young woman extended to the pelvis, giving the impression of an ovarian tumor. CONCLUSION: In the case of a pelvic mass, especially if other unusual anamnestic data and signs are present, the possibility of other than a gynecologic tumor has to be considered. Every effort should be made to identify the origin of the tumor and related anatomic structures, especially the ovaries.
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We describe the clinicopathological and immunohistochemical findings in five cases of sclerosing stromal tumours of ovary and compare our findings with other reported cases of this uncommon tumour and with fibromas and thecomas which they may mimic.
Computed tomographs of the malignant fibrohistiocytic tumors metastatic to the lung were demonstrated in two elderly patients. The lymphatic spread of the tumors and the manifestation as pleura-based cyst-like lesions are stressed.
INTRODUCTION: The interesting topic of cutaneous and subcutaneous metastasis from rectal carcinoma is discussed using 3 cases. CLINICAL PICTURE: The first case was a 70-year-old man with T3N2M0 rectal mucinous adenocarcinoma, who developed an inflammatory subcutaneous metastasis at the left scapula 2 years after anterior resection. The second case was a 51-year-old man with T4N2M0 splenic flexure mucinous adenocarcinoma, who developed metastatic disease including a subcutaneous secondary to the back. The third case was a 53-year-old woman who developed vulval recurrence 10 months after abdomino-perineal resection for a low T3N1M0 rectal adenocarcinoma. TREATMENT: All underwent wide resection. CONCLUSION: This entity is rare and usually signifies disseminated disease if found remote from the resection site and warrants a thorough metastatic work up. A high index of suspicion is recommended when encountered with unresolving skin lesions in cancer patients.
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