Preprint Review Version 1 Preserved in Portico This version is not peer-reviewed

Cystic Clear Cell Renal Cell Carcinoma: A Morphological and Molecular Reappraisal

Version 1 : Received: 31 May 2023 / Approved: 1 June 2023 / Online: 1 June 2023 (07:03:38 CEST)

A peer-reviewed article of this Preprint also exists.

Pini, G.M.; Lucianò, R.; Colecchia, M. Cystic Clear Cell Renal Cell Carcinoma: A Morphological and Molecular Reappraisal. Cancers 2023, 15, 3352. Pini, G.M.; Lucianò, R.; Colecchia, M. Cystic Clear Cell Renal Cell Carcinoma: A Morphological and Molecular Reappraisal. Cancers 2023, 15, 3352.

Abstract

A wide variety of renal neoplasms can have cystic areas. It happens for different reasons: some tumors have an intrinsic cystic architecture, others have a pseudocystic degeneration of necrotic foci or they have cystically dilated renal tubules constrained by stromal neoplastic cells. Clear cell renal cell carcinoma (CCRCC), either solid or cystic, is the most frequent type of renal cancer. While pseudocysts are found in high-grade aggressive CCRCC, cystic growth is associated to low-grade indolent cases. The latter also form through a cyst-dependent molecular pathway and they are more frequent in patients suffering from VHL disease. The differential diagnosis with multilocular cystic renal neoplasm of low malignant potential and clear cell papillary renal cell tumor can be especially hard and it requires a focused macroscopical and microscopical pathological analysis. As every class of renal tumors include cystic forms, a knowledge of criteria for a differential diagnosis is mandatory.

Keywords

Renal cell carcinoma; Cystic renal neoplasm; differential diagnosis

Subject

Medicine and Pharmacology, Pathology and Pathobiology

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