A 77-year-old man presented with long periods of left-sided nasal obstruction and intermittent epistaxis. Nasal fibroscopy revealed an unusual, white, cauliflower-like, well-circumscribed, firm polypoidal mass arising from the vertebral portion of the left inferior turbinate (Figure 1). The surface of the multilocular polyps was lustrous. Computed tomography showed soft-tissue opacity with no e...

Squamous cell carcinoma (SCC) is by far the most common malignancy of the upper aerodigestive tract. Most conventional-type SCCs do not present the surgical pathologist with diagnostic difficulty. Certain variants, however, can histologically mimic benign and other malignant diseases. In such cases, correct diagnosis is important for prognostic and therapeutic reasons. This article discusses th...

A 67-year-old female patient with no medical history presents with pain and increased volume in her right lower limb for the last three weeks. She is admitted with a diagnosis of right-side iliac-femoral-popliteal deep venous thrombosis and bilateral pulmonary thromboembolism. She developed rectorrhagia following anticoagulation. Colonoscopy revealed an exophytic, mamillated, friable, anteriorl...

INTRODUCTION Oral verrucous carcinoma (OVC) is a rare malignancy of the oral cavity that was first described by Ackerman. This tumor is a well-differentiated low-grade, slow growing cancer that is locally invasive without metastasis. Ameloblastoma is one of the most common odontogenic tumors, which originates from the odontogenic epithelium. Verrucous carcinoma along with central ambloblastoma ...

ical examination because of epigastric discomfort. Esophagogastroscopy revealed a small, elevated, verrucoid pink-yellowish mucosal lesion, 3mm in diameter, in the upper third of the esophagus (●" Fig. 1). Low power histological examination revealed an exophytic lesion resembling a squamouspapilloma,with the typical papillomatosis, acanthosis, and hyperparakeratosis of the esophageal squamous e...

Colorectal adenomas can be morphologically classified as exophytic or flat. Polypoid cancers and cancers arising de novo (ie., without any adenomatous component) might be the results of genetic progression from exophytic and flat adenomas, respectively. In this study, we examined 94 morphologically distinct neoplastic specimens for mutations in K-RAS and analyzed 10 microsatellite loci tightly ...

UNLABELLED Vascular abnormality of the intestine is rare, except angiodysplasia. We report on an unusual case of atypical florid vascular proliferations of the appendix. A 41-year old male presented with melena. Adhesioned blood clots in the appendiceal orifice were observed by colonoscopy. He underwent laparoscopic appendectomy. Microscopically, a tiny exophytic polypoid mass was observed. The...

Papilloma virus infections of the squamous cervix are common and determine the incidence of koilocytes in cervical smears and biopsies. Typical exophytic condyloma acuminatum accounts for few of the infections. Most are "flat condylomata" (flat koilocytosis)--slightly raised plaques of flat profile. Superficial koilocytosis, dyskeratosis and often disturbed deep cells are their main histologica...

a variety of verrucous and papillary lesions affect the oral mucosa. Those which are benign and reactive, for example squamous papilloma or verruciform xanthoma, usually present little diagnostic difficulty. However, dysplastic and malignant verrucous and papillary lesions are a much greater diagnostic challenge, not helped by confusing terminology. papillary hyperplasia is a reactive inflammat...

Verrucous carcinoma (VC) is an exophytic, low-grade, well-differentiated variant of squamous cell carcinoma. It is described as a lesion appearing in the sixth or seventh decade of life that has minimal aggressive potential and, in long-standing cases, has been shown to transform into squamous cell carcinoma. Oral submucous fibrosis (OSMF) is a potentially malignant disorder, and about one-thir...