Utricular papillomatosis. A case report]

A case of utricular papillomatosis is reported herein. A 50-year-old male patient consulted our hospital with a complaint of asymptomatic macrohematuria. Endoscopic examination revealed papillomatous tumor tightly growing within the utricle. Transurethral resection of the tumor was performed. Histopathologically, the tumor consisted of numerous villous structures with slender fibrovascular cores and overlying cuboidal cells in 2 to 3 cell layers. Invasive growth or cellular atypia could not be found. Utricular papillomatosis is rare, and only one similar case was reported to my knowledge in the English literature for the last five years. Such rarity and peculiar clinicopathological characteristics prompted us to report this case.     

Pulmonary squamous papilloma

We report a rare case of pulmonary squamous papilloma. A 42-year-old woman was referred to our hospital complaining of dry cough. A chest computed tomography (CT) showed a mass shadow in the lower lobe of left lung. Serum concentrations of carcinoembryonic antigen (CEA) and squamous cell carcinoma-related antigen (SCC) were elevated to 13.0 ng/ml and 11.8 ng/ml, respectively. The mass was positron emission tomography( PET)-positive, with a maximum standard uptake value( SUVmax) of 11.55, suggesting a malignant neoplasm. Under the guidance of video-assisted thoracoscopy, left basal segmentectomy was performed. Intra-operative diagnosis was a squamous papilloma and no malignancy. Her postoperative course was uneventful. She is currently alive without any sign of recurrence.     

Inverted papilloma of bladder

A case of inverted papilloma of the urinary bladder in a forty-six-year-old man is presented. The lesion is rare but may be easily misdiagnosed as transitional-cell carcinoma.     

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乳腺导管内乳头状病变主要包括乳腺导管内乳头状瘤和乳腺导管内乳头状瘤病 ,临床上常见对两种疾病概念的混淆 ,亦有者将多发性乳腺导管内乳头状瘤和导管内乳头状瘤病作为同一疾病。经过进一步研究 ,临床和病理学家已经取得一致意见 ,认为乳腺导管内乳头状瘤和导管内乳头状瘤病不是同一概念 ,其临床、病理学和生物学特点各不相同 ,是完全不同的两种疾病。乳腺导管内乳头状瘤病是乳腺增生症多种病理组织学形态改变的一个类型。乳腺增生症是妇女最常见的一种因内分泌功能失调所致乳腺上皮和间质增生和复旧不全所引起的非炎症性、非肿瘤性乳腺疾…     

Pulmonary inverted Schneiderian papilloma

Pulmonary inverted Schneiderian papilloma (ISP) is a very rare entity. We herein describe a case that, for its clinical and pathologic features, proved to be challenging.     

Inverted papilloma of ureter

We report a case of an inverted papilloma of the ureter. The clinical presentation, biological behaviour and management of this extremely rare lesion are reviewed. Although behaving benignly, their malignant potential remains to be established. These tumors should be part of the differential diagnosis in ureteral tumors.     

The inverted urothelial papilloma

3 additional cases of inverted urothelial papilloma are presented. A pathological, clinical and epidemiological review of this rare urothelial lesion is given.     

Inverted papilloma of bladder

The fifth reported case of a rare variant of transitional papillary tumor of the bladder termed inverted papilloma is reported with a brief review of the literature. This tumor is likely to be confused with invasive malignant papillary carcinoma although it has a distinct histologic pattern, and it is for this reason that attention is drawn to the entity.     

Aggressive choroid plexus papilloma

A young woman, who was initially treated for an Arnold-Chiari malformation, was found 7 years later to have a posterior third ventricular tumor. A superior cerebellar approach allowed total resection of the mass, which was an aggressive choroid plexus papilloma. The patient was treated with whole cerebrospinal axis radiation. There is no clinical or computed tomographic evidence of recurrence after 4 years. The literature is reviewed and a discussion of aggressive choroid plexus papilloma (carcinoma) is presented.     

Inverted papilloma of ureter

Two cases of inverted papilloina of the ureter are reported. The possible etiology and clinical significance of this previously unreported lesion are discussed.