Cavernous lymphangioma of the urinary bladder in an adult woman: an additional case report of a rare lesion and literature review

Wei He,Xiao-Long Qi,Xiang-Lei He,Da-Hong Zhang,Fang-Fang Lin,Ming Zhao,Li Jin

doi:10.1186/s12894-021-00907-3

Wei He, Xiao-Long Qi + Show 5 more

Open Access

https://doi.org/10.1186/s12894-021-00907-3

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Abstract

BackgroundUrinary bladder lymphangioma is a rare and benign lesion that is often causes symptoms related to irritation and urinary tract obstruction. Because a lymphangioma may resemble a true neoplasm of the urinary bladder clinically, the lesion must be removed for accurate histologic diagnosis and to rule out malignancy.Case presentationWe present a case of a 40-year-old female who was evaluated for painless gross hematuria. Clinical and diagnostic work up revealed a sharply defined mass involving the wall and bulging into the cavity on the dome of the bladder. Partial cystectomy was performed and histologic findings were compatible with cavernous lymphangioma. The symptom of hematuria relieved after the procedure and the patient was in good status without evidence of recurrence by cystoscopy at follow-up 6 months later.ConclusionsLymphangioma of the urinary bladder is treated with surgical excision and seems to have no recurrence once completely resected, but long-time follow-up may be needed.

Highlights

BackgroundLymphangioma is rare benign vascular lesion composed of a localized collection of dilated lymphatic channels, which has been classified into three histologic groups depending on the size of lymphatic spaces as capillary, cavernous, and cystic [1]
Urinary bladder lymphangioma is a rare and benign lesion that is often causes symptoms related to irritation and urinary tract obstruction
Lymphangioma of the urinary bladder is treated with surgical excision and seems to have no recur‐ rence once completely resected, but long-time follow-up may be needed

Summary

Background

Lymphangioma is rare benign vascular lesion composed of a localized collection of dilated lymphatic channels, which has been classified into three histologic groups depending on the size of lymphatic spaces as capillary, cavernous, and cystic [1]. This article describes an additional case of lymphangioma involving the urinary bladder in an adult Chinese woman and the clinical. Computerized tomography (CT) scan showed a sharply defined, heterogeneously enhancing mass involving the dome of the urinary bladder wall measuring 4.0 cm in the maximum diameter (Fig. 1a). Cystoscopy examination revealed a red, non-papillary tumor with a smooth surface, bulging into the cavity on the dome of the bladder (Fig. 1b). In superficial mucosa the dilated lymphatics were thin-walled that connected with thick-walled often muscular, lymphatic channels in the deep muscularis propria, and the overlying urothelium showed flatten hyperplasia with focally florid von Brunn’s nests formation (Fig. 3b). Based the histologic and IHC features, the diagnosis of cavernous lymphangioma was rendered

Discussion and conclusions

Findings

F Painless gross hematuria for 6 months